Related
Hi guys,
I do a lot of hiking and walking, taking my trusty Touch Cruise/ Orbit2 with me, running GPS and phone. I use the GPS to run EveryTrail - which allows you to track and record your position to upload your route and pics to the site later.
Of course, with all this lot running all day... well, lets just say the batteries dont!
Come to use the phone at your desitination, and voila! you've got a dead battery....
I'm not interested in those "2300 mah" extended batteries, I want something that's going to last DAYS (under these conditions) and I dont mind if I have to have it on a belt or something.
My idea is this:
Build a case to hold whatever and however many rechargeable batteries to give maximum power - within reason (say 48 hours).
This would then go on a belt, with a fixed power cable going to the mini-usb charge port on the Touch Cruise.
In theory, it might be good if it was possible to "daisy chain" multiples of these battery packs to increase the capacity still further....
So, my questions would be:
1. What are the pin connections for power on the mini-usb interface for the Touch Cruise?
2. Can someone recommend a low-unit supplier? (i.e 5 mini usb connectors)
2. What type / spec batteries would I need?
3. What does anyone else think of the idea?
My dad's helping me to look at this - who knows a lot more about electronics than me!
Thanks in advance - I think this would be useful for other people with the same goals...
i think that it is a good idea except one thing i would be worried that i would break the mini usb connector on the bottom of the phone.
OK, this is a good idea, but the weak link is the mini USB connecter (guess how I know...) I think the best solution would be a sleeve that clips around the phone so that the mechanical stress is not borne by the USB connector.
You can get the mini USB connector from Maplin:
http://www.maplin.co.uk/Module.aspx?ModuleNo=43998
Batteries should probably be NiMH as they have good capacity. Charging is going to be an issue, as you don't really want to have to charge 10 separate AA batteries...
Good idea though, I can only get about half a day out of my Kaiser under those conditions.
Hey, was thinking exactly about the same ;-)
My idea was to use:
1. A 5VDC switching regulator, so battery voltage doesen't matter and for example a 10V battery pack with 2000mAh will last as long as a 5V 4000mAh-battery
2. A complete Li-Ion battery pack with charger from an old camcorder,notebook,accu-driller, or whatever...
Good luck!
Hi there ,
I suggest you to buy 2 external battery pack of maybe 4000 to 5000 mah type suitable for your pda or your device , size like a normal cigarette pack , connection via mini usb cable or similiar , put these into your pouch and use it for your outdoor activities , it is easier than diy making all sorts of modification on wiring and so on . You can get these ext. battery pack with the right voltage and amps or omnhs - whatever from ebay and your local handphones and computer malls or outlets in most major towns in any country . Making a belt or an armband or a shoulder band or any sorts of diy is innovative but will take a lot of time , unless you are the type that likes to be really different or unique from others , then dont give up in making your special dream battery pack , cheers and best regards - jimmunsw
I have a setup like what you want, A 12v 12Amp SLA Battery with a 12v accessory plug that clips on that I just put my car charger in. To ad to this for my larger devices I have a 12v 46amp array in my car for my lappy, both supplemented by Solar panels.
Works well but there is a lot of weight.
Portable Power Supply
I've been interested in a similar setup for extended battery life. I've been increasingly interested in using Li-Po 18650 cells from dead laptop batteries. http://hackaday.com/2011/09/19/things-to-do-with-your-laptop-batteries-when-theyre-dead/ achieving 12v and using a cigarette car adapter to step the power back down to a constant 5.5v 2a It would be cool to finally test this out. dead battery packs from laptops are found many places so the parts could be fairly cheap.
Keep us posted on your DIY!
Hey guys,
I got my brodit active car holder now for a few days and it seems it doesn't supply enough juice to the S2 while in use :-(
While navigating with navigon, it even loses charge, though it's connected .... that's really disapointing, since brodit normally supplies quality products.
Anyone else got the brodit active holder with the same problems?
boba
Not got the Brodit, but I have the same problem when using CoPilot and charging via the USB cable attached to a car charger. It can keep the charge at current level with CoPilot on, but will only charge with CoPilot off.
Also noticed if SII has less than 50% charge, it won't charge at all with CoPilot on.
Taking a punt on one of these to see if it makes a difference:
http://www.buyincoins.com/details/d...-for-ipad-iphone-4g-ipod-2a-product-2748.html
Which holder do you have exactly? Can you make a photo?
Does it toggle car dock in the S2? You can see a steering wheel in notification bar.
ALexander
I was thinking exactly the same thing this lunchtime. I have the cigarete lighter active Brodit mount and - if i makes any difference - a 2004 Vauxhall Astra H. I as wondering if I would have to turn off the nice things [like satellite view, etc] on the phone for it to survive the journey. Not happy.
boba23 said:
Well I don't know the exact reason yet, but it seems the S2 doesn't accept enough juice from the charger,
Click to expand...
Click to collapse
Is the S2 in USB AC Mode?
Take a look here: Einstellungen - Telefoninfo - Status
Yesterday I modified a Brodit active car holder from the good old htc HD2 to fit the S2. Now I have fast charging (AC) and Car-Mode.
I currently own some chargers. Not the original one, well the UK Version with no use in Austria.
A 1A HTC Charger with USB socket, a 450mA noname charger with USB socket and a no name car charger with micro usb.
The car charger and the HTC charger show charging(AC) whilst the noname 450mA charger shows charging(USB)...
It would be interesting to measure the exact mA taken by the phone...
ALexander
CurrentWidget doesn't work...
ALexander
Hi all,
Okay, I've now tried four different chargers, and I've also had the phone replaced. Today, in a last attempt, I bought an official Samsung charger.
NONE of them work - even though the phone says "charging on AC" for all of them.
The only thing I haven't tried is a different car (which I'm going to do, once my neighbour gets home).
The one sensible suggestion I've read is that Samsung have screwed up somewhere in software and the phone can't draw enough juice.
Electronics is beyond my little brain, so I don't get why the GS2 charges from my netbook (even when it's only on battery) but won't charge in the car.
And I'm not talking when I'm using satnav. It won't charge at all. In fact (weirdly) it actually DISCHARGES much faster than it does if it's just sitting in my pocket.
I've logged this with my provider (Voda UK), because I refuse to get stuck with a useless phone for the next 18 months if this isn't sorted out. It's ludicrous. If I can't charge the phone in the car it's as good as useless to me.
UPDATE:
Okay, I just tried my neighbour's car (Vauxhall Astra) and the GS2 charged perfectly. 3% in four minutes. Pretty much what I get off the mains charger.
I wish I knew about electrics but I don't. Explanations will have to come from the boffins round here.
I tell you what, though. I don't really want to get a new car just to use my phone properly
Do you have any chsrger with a led?
If the led stays dark the cigarette lighgter of your car might need a new fuse.
Which car?
Sent from my GT-I9100 using XDA Premium App
Ive ordered one of these mounts and will report how it behaves in my 2008 Civic
barneypooch said:
UPDATE:
Okay, I just tried my neighbour's car (Vauxhall Astra) and the GS2 charged perfectly. 3% in four minutes. Pretty much what I get off the mains charger.
I wish I knew about electrics but I don't. Explanations will have to come from the boffins round here.
I tell you what, though. I don't really want to get a new car just to use my phone properly
Click to expand...
Click to collapse
You might be able to change to a higher amp fuse in your car fusebox.
eddablin said:
You might be able to change to a higher amp fuse in your car fusebox.
Click to expand...
Click to collapse
ROFL!! Genius!
Brodit mount arrived and looks great. Fit and design excellent and seems to charge as I would want.
Sent from my GT-I9100 using Tapatalk
So what charger do you guys advice? Which charger does charge the phone, even while navigating with Navigon?
I got the Brodit active charger (BR512...), there isn't a problem with charging at all.
I think the issue you got is really car related. My guess:
a) your cigarette lighter port is poorly wired -> Measure voltage at the port with a voltmeter, it should be at least 12V DC (Edit: Even if it does there is still the possibility that your wiring is bad, showing 12V doesn't mean it can handle the current this charger needs)
b) your cigarette lighter port doesn't make a good contact to the brodit plug. Check for corrosion of the contacts, dust, dirt, etc. Some ports go bad after lots of plug in / out cycles.
If you have no idea what I'm talking about here, I'm pretty sure every car mechanic can fix your problem for a small amount of money
Edit: it's very possible this plug works with other chargers and phones and still fails with the S2 charger. The reason for this is the different ways chargers convert the car's 12V DC into 5V DC. Some might work down to 7V input, some already **** up at 11.8V
I have the same problem with my GSII trying to charge it with my 12V Ipod adapter...
I just arrive from a short travel with my Citroën Xsara and i almost got lost cose the phone discharged all the time while using IGO on the phone...
I don't think this is car related because there are so many people with different cars having this problem... so... Samsung wants me to buy a new car to be able to use their phone in travels?
Hi guys, just thought I'd try to clear up a few of things:
1. All phones can use more power than they can draw. Note that the more apps you use, the more juice you draw depending on their features.
2. Not all CLAs are the same. Most modern devices will need 2amps, but the majority of CLAs on the market are 1 - 1.2amp units.
3. Your device will stop charging if it reaches a certain temperature, without giving you any further indication that it is too hot. This is a common scenario if you've got a phone on the dash giving guidance, with the sun rays beating a back. And yes this does mean dedicated satnav devices have a greater operational temperature range than phones, usually a 15-20 degree difference (celcius).
4. If the CLA is being tripped out due to poor isolation (a lot of cars suffer from this) it will also stop charging.
5. In general terms, the lower the battery level of the device, the more juice it pulls. This is why you may find you ha email no problems getting a small charge when you start with a battery at 85%, but your phone dies if the battery is 50% or less.
Hope that helps.
Sent from my GT-I9100 using XDA Premium App
OK, I have no idea what the problem is. I have a Brodit active charger (the cig-plug version) for my Galaxy SII. It's not charging my phone AT ALL. There is no sound, nothing displayed on my phone when I connect it. I have the charger led (blue light) on, so I know it's working.
Things I have tried so far:
1. Asked for a replacement from Brodit. Got it, no difference.
2. Tried with a different car (I have a BMW, my wife a brand new Toyota Auris) - doesn't charge it either.
3. Tried a different no-name universal charger - it works perfectly well, the phone is charging as expected. Other things like the GPS device also work fine.
4. Tried a different kernel and ROM on my phone, still no success.
Any suggestions are welcome.
LazyPawn said:
OK, I have no idea what the problem is. I have a Brodit active charger (the cig-plug version) for my Galaxy SII. It's not charging my phone AT ALL. There is no sound, nothing displayed on my phone when I connect it. I have the charger led (blue light) on, so I know it's working.
Things I have tried so far:
1. Asked for a replacement from Brodit. Got it, no difference.
2. Tried with a different car (I have a BMW, my wife a brand new Toyota Auris) - doesn't charge it either.
3. Tried a different no-name universal charger - it works perfectly well, the phone is charging as expected. Other things like the GPS device also work fine.
4. Tried a different kernel and ROM on my phone, still no success.
Any suggestions are welcome.
Click to expand...
Click to collapse
Thats strange, in the first place i thought a faulty micro-usb or charger. But you got it replaced so can't be the problem.
I have a brodit with charger too, but i use it in a different way, meaning i can remove my holder and unplug it without unplugging my charger. ( near my holder i have a small connector that i can unplug).
What i did is cutting the cable from the charger and i did put a male usb port on it ( regular male usb port) and i have a Belkin charger with a usb port, this charger deliver 1A charging current and charge my phone even when i use my navigation. ( with bluetooth and gps on).
Your phones micro-usb seems to be fine too because it charge with other brands of chargers.
Your BMW delivers enough power i guess at your cigarette lighter plug, because it doesn't charge at the Toyota either and both not delivering enough power would be coincidence.
Anyway mine works perfect the way i did it and if i can remember it worked too with my original plug attached too. ( though the original one doesn't provide enough power sometimes to keep it charged while using navigation).
The only thing i can think of is that there is some stress-pressure on your connection between phone and holder connection and that one pin isn't connected properly, with the universal charger you only plug the micro-usb plug in your phone and the micro-usb plug can adjust freely to your phones micro-usb port.
Try to wiggle a bit with your phone when in the holder and see if the power comes on. Or try to connect a little device on your holders micro-usb port ( if you have something small that charge over micro-usb) and see if that works.
Before this forum was made, I was trying to find a car charger that would actually work. The majority of the ones sold on Amazon are just micro USB chargers, which obviously don't work for the a100. I found this one on another forum, so I bought one:
mobile.walmart.com/ip/Car-Cord-Adapter-with-Polarity-Switch/15050431
But when I tried another similar wall charging product, I had to exchange my tablet for a new one because the battery stopped charging entirely. So my question is, is this product (with the proper voltage settings, of course) safe to use?
This is the thread I found the product on:
acertabletforum.com/forum/acer-a100-general-discussion/1168-car-charger-2.html
A few people there claim it works, but I trust xda a lot more. Can anyone help me out?
Thanks, and I'm anxiously awaiting, like everyone else, some custom roms on this nice little device.
Sent from my A100 using xda premium
Since I didnt get any responses, I decided to just try it, and it worked fine. So if anyone else was looking for a car charger, this one will do the job.
Sent from my A100 using xda premium
Battery Charger
***** I AM NOT promoting this seller just added the link so you can check it out.***** ( gave him 100% rating)
http://www.ebay.com/itm/200646271817?ssPageName=STRK:null:IT#ht_3564wt_1202
Thought I had posted this Battery Charger here.
Bought it from Ebay weeks ago and works great maybe you can find it else where.
eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices
for Acer ICONIA Table PC A100
7" Android
with LED Power Indicator
Acer Tablet PC W500
A100-07u16u
A100-07u08u
A100-07u08w
12V~18V input, 12V output about 5’ in length ,long flat cable
LED indicator, e13, RoHS compliance
compact design, much smaller than AC style charger
advance IC for surge protection & power management
high quality item and brand new in retail box
It seems that the eBay one is better. It has 3A output vs the 2A from Walmart.
If you are using the A100 in the car it is better to have a charger with a higher capacity.
kwongwt said:
It seems that the eBay one is better. It has 3A output vs the 2A from Walmart.
If you are using the A100 in the car it is better to have a charger with a higher capacity.
Click to expand...
Click to collapse
Wouldn't the additional amperage cause charging issues and additional wear on the battery?
kdkinc said:
Battery Charger
***** I AM NOT promoting this seller just added the link so you can check it out.***** ( gave him 100% rating)
http://www.ebay.com/itm/200646271817?ssPageName=STRK:null:IT#ht_3564wt_1202
Thought I had posted this Battery Charger here.
Bought it from Ebay weeks ago and works great maybe you can find it else where.
eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices
for Acer ICONIA Table PC A100
7" Android
with LED Power Indicator
Acer Tablet PC W500
A100-07u16u
A100-07u08u
A100-07u08w
12V~18V input, 12V output about 5’ in length ,long flat cable
LED indicator, e13, RoHS compliance
compact design, much smaller than AC style charger
advance IC for surge protection & power management
high quality item and brand new in retail box
Click to expand...
Click to collapse
I picked up the same one, excellent charger. The tip fits perfectly, no need to bust out the pliers with this one.
That's what she said......sorry couldn't resist
dharr18 said:
I picked up the same one, excellent charger. The tip fits perfectly, no need to bust out the pliers with this one.
Click to expand...
Click to collapse
Sent from my SCH-I510 using XDA App
Car charger specs
After several calls to Acer, I was able to have then confirm that the maximum voltage that should be applied to the A100 is 12 volts DC.
Your car is capable of producing 13 to 15 volts DC while running. Failure to use a REGULATED 12 volt charger could fry your tablet. Your tablet will draw aprox 1.5-1.8 amps while running AND charging. Anything that is capable of delivering 2 amps or better will be fine. A charger rated at 5 amps will Not ham your unit, it is just capable of delivering the required power with room to spare.
NEVER attempt to charge via USB, there is NO physical connection between the USB port and the battery charging circuit.
I have not been able to get the size specifications for the charging plug from Acer. If I can find my caliper kit I will measure mine and post it here.
Hope this helps.
Bob
i just bought an extra wall charger and use inverter. i have a 800watts inverter lying around. and it works fine.
So does anyone have a lead on a 12 volt regulated car charger?
I used an 85 watt converter and watched a 90 minute movie with no problems except the converter was rather hot when I pulled it out of the lighter socket.
I picked up a +12V voltage regulator from Radio Shack and soldered it into a cheap Chinese charger I found on Ebay, and it works perfectly. The regulator is only rated at 1.5A, but I'm never using my A100 while it's charging in the car.
Considering the minimal voltage change, I doubt that additional .3 amp draw would overheat the regulator anyhow.
I bought the below car charger because the cheap generic one I had from an old phone couldn't keep up with the drain from the screen when running sat nav.
http://www.ebay.co.uk/itm/290627400358?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
This also doesn't work, it loses a percent of charge every 10 minutes or so, while I'm aware this isn't alot and I can probably get anywhere in the UK on a full charge, the fact is I want my phone to actually be charging while it's plugged in as I don't always have a full charge and I may need it topping up on my journey in case I don't have another charging opportunity for a while.
I cannot find another genuine samsung product that claims to be compatible with the s2 (indeed the above "genuine" charger doesn't appear on Samsung's website.) There is one on their site (P10CBE In-Car Charger) however it claims to be only compatible with the galaxy tab. While I know it simply has a USB socket for use with any data cable, I'm worried it may damage the phone if rated too high in amps (700mA to 2A is a big jump.)
So I have 3 questions...
1) Is the tab charger safe to use, and does anyone else have this and can confirm it can keep up with the screen permanently on with google navigation running.
2) Can anyone suggest another brand that they have experience with it definitely keeping up with the charge on a galaxy s2, running screen etc.
3) I quite like the look of the official Samsung car mount, can anyone confirm if the charger included with this can keep up etc (also if you know what ampage it's rated to as I can't find this info on the product data.)
Many thanks if you take the time to reply to this, a bit lengthy I know.
lancemate
Use siyah's kernel to increase the charging current, how high you can go is anyones guess. Stock kernel supply's 450mA when plugged into a usb port and 650mA when plugged into a charger, i set mine to 800mA for both and all seems fine so far.
I have used a motorola car charger and this has actually worked better that the original samsung car charger, charges faster, and has a cool blue light. since the micro-usb is non-proprietary, you have lots of options.
Using an Official charger, better than those cheap ones that fail to keep the battery topped up while using the phone as a satnav.
I have a Sony Ericsson Original AN401 Compact Car Charger and it charges when using satnav.
The main problem with the cheap adapters is the output current, it tends to be too low for GPS. Make sure it is regulated & 750mah or higher.
So I'm in my junior year of electrical engineering and seeing the incredible things done with smartphones is something I really would like to be a part of one day. I wanted to discuss, considering the limits of current technology, if it would be possible to create a safe Dash Charging power bank for this device? For those who don't know how dash charging works I'll post a few links and my understanding of how it works and if I'm wrong at any point feel free to correct me.
Dash Charging - The Technology
The way dash charging works, as I understand it, is that the USB-C cable wires are made wider in diameter to accommodate a larger amount of current being passed through to the battery. The charger plugged into the wall takes on the burden of the extra voltage pushing the current through the wire and keeping it away from the phone's internal battery (which is brilliant). That means that the charger takes on the extra heat which isn't a problem because passive components are often more tolerant of heat than batteries are.
Links:
http://www.phonearena.com/news/How-it-works-Dash-Charge-fast-charging-on-the-OnePlus-3_id82646
http://www.trustedreviews.com/opinions/what-is-dash-charge-oneplus-3
The Issues
A dash power bank could be charged up exactly like the phone; with the dash charger it could fill extremely fast. However, using the battery pack to charge the phone means that the internal Li-Ion batteries of that charger will be taking on the extra heat from within the case which could:
a) shorten the power bank's life span
b) Possibly lead to unsafe power banks if it got too hot
I also see there being limitations with the power bank's ability to maintain a full speed charge similar to wall charging along with what types of batteries would be needed to provide the power output similar to the dash charger.
The Solutions
So in my limited knowledge I think that the biggest enemy here is heat generated in the power bank. I feel like the rest could be overcome with a fairly large bank of 18650 batteries. It is possible to have a passive cooling system built into the power bank for heat dissipation but that might make the battery bank difficult for users to hold on their Pokemon Go outings. Also, reducing Dash Charging specifications just a little, decreasing the speed at which it could charge the device, would alleviate some of the concern. So while you might not get 60% in 30 minutes from the wall, perhaps aiming for 45-50% charge in that amount of time would increase the power bank lifespan and total amount of charges.
What do you all think? I'll readily admit I don't understand completely how current battery bank internals work to limit over-current and over-voltage scenarios as I've never taken one apart. If anyone wants to educate me and say whether they think Dash Charging is possible I'd love to hear about it. This is the kind of stuff I imagine the OnePlus engineers are sitting around working on every week.
i think that would be too expensive to make for consumers, u figure if a dash charge block is almost $30.00 this thing would be well over $500.00 which would be too much for a regular consumer to purchase just to have a portable charger, maybe in about the 3rd or 4th generation of this technology we could see one in about 5 years, they would rather make a ton of 30.00 purchases and have you buy their charge block opposed to very little purchases of about 500.00 for power bank
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
otonieru said:
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
Click to expand...
Click to collapse
I had no idea that even existed. I'm going to look into the specs of that device and see what it has under the hood. Thanks for letting me know about it!
AlkaliV2 said:
I had no idea that even existed. I'm going to look into the specs of that device and see what it has under the hood. Thanks for letting me know about it!
Click to expand...
Click to collapse
Here,
the information page from the maker itself :
http://www.oppo.com/en/accessory-vooc-power-bank
and where to get it :
https://www.amazon.co.uk/OPPO-VOOC-Flash-Charge-Power-White/dp/B00SINEEXA
I'm going to build power bank using Dash Charge car charger. The power banks higher voltage (12V if using car charger) means less current for individual cell while charging. I have bought battery holder case 10 x 1,5V for AA batteries. http://r.ebay.com/vpShFJ (I already have plenty of Eneloop AA batteries for other accessories.) Each Eneloop has at least 1,5Ah (1500mAh) capacity while retaining voltage at or over 1,2V. http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php I'm going to attach 12V socket to the battery holder case so I can use my car charger both in car as well while at camping.
Battery bank consisting of 10 x AA Eneloop has a total capacity of: 12V*1,5Ah=18Wh.
Dash chargers input is rated at 12V/2.5A so each individual Eneloop would have about 250mAh discharge rate.
My old Galaxy Note 3 had 3,8V 3200mAh battery and the capasity was ~12,2Wh. I don't know the nominal voltage of OP's battery but I would estimate it's about the same as Samsung's so the capacity should be lower than in Note 3. Maybe around: 3,8V*3000mAh=11,4Wh.
10x Eneloop batteries has a capacity to give energy for charging OP3 from 0% TO 100% at least. (18Wh/11,4Wh = ~1,6)
I think in India it's not available
Sent From My One Plus 3
https://forums.oneplus.net/threads/new-product-survey-dash-charge-power-bank.457920/
Squabl said:
I'm going to build power bank using Dash Charge car charger. The power banks higher voltage (12V if using car charger) means less current for individual cell while charging. I have bought battery holder case 10 x 1,5V for AA batteries. http://r.ebay.com/vpShFJ (I already have plenty of Eneloop AA batteries for other accessories.) Each Eneloop has at least 1,5Ah (1500mAh) capacity while retaining voltage at or over 1,2V. http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php I'm going to attach 12V socket to the battery holder case so I can use my car charger both in car as well while at camping.
Battery bank consisting of 10 x AA Eneloop has a total capacity of: 12V*1,5Ah=18Wh.
Dash chargers input is rated at 12V/2.5A so each individual Eneloop would have about 250mAh discharge rate.
My old Galaxy Note 3 had 3,8V 3200mAh battery and the capasity was ~12,2Wh. I don't know the nominal voltage of OP's battery but I would estimate it's about the same as Samsung's so the capacity should be lower than in Note 3. Maybe around: 3,8V*3000mAh=11,4Wh.
10x Eneloop batteries has a capacity to give energy for charging OP3 from 0% TO 100% at least. (18Wh/11,4Wh = ~1,6)
Click to expand...
Click to collapse
We're going to need a hardware XDA for people like you. I never would have thought to string together Eneloops to make an external charger since most of your power banks contain 18650 with overcharge protection and stuff built in. The wall dash charger is spec'ed to run 5V at 4A and the car charger loses half an amp to land in at 3.5A max. Car charger voltage varies between 3.4~5V from what I can tell probably based on the car's cigarette lighter specs.
What kind of case are you using with the eneloops and what are you using for overcurrent/voltage protection?
otonieru said:
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
Click to expand...
Click to collapse
So... can you tell me if a normal VOOC charger block charge the OP3 as fast as the original dash charger in package?
I saw it is the same current rate, but the technology, is it interchangeable?
Just wait oneplus is planning to release a dash charge powerbank with 10000mAh so stay connected no need to buy oppo 6kmAh one
AlkaliV2 said:
The wall dash charger is spec'ed to run 5V at 4A and the car charger loses half an amp to land in at 3.5A max. Car charger voltage varies between 3.4~5V from what I can tell probably based on the car's cigarette lighter specs.
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You are right, the car charger uses lower current and is probably a bit slower. When I receive my car charger I will do some testing and will report back.
The voltage variation is needed on all chargers. When the battery is almost full the charging voltage drops.
AlkaliV2 said:
What kind of case are you using with the eneloops and what are you using for overcurrent/voltage protection?
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I have ordered a case like this: http://r.ebay.com/vpShFJ
The car charger has been designed to be used as it is. The charger itself does not require additional overcurrent protection but in case of a short circuit a 5A fuse is needed to protect the wiring and Eneloops. Overvoltage is not a problem as the maximum voltage with Eneloops is going to be under 15V.
DouglasDuZZ said:
So... can you tell me if a normal VOOC charger block charge the OP3 as fast as the original dash charger in package?
I saw it is the same current rate, but the technology, is it interchangeable?
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Yes it is. I've posted it in another thread as eell. Just check through my post history.
This is pure logical, since Oneplus is just a subsidiary company of OPPO, so they surely can share few technologies between each other, and VOOC/DASH is one of it,
Just make sure your usb c adapter quality is good when you decide to use it with VOOC charger.