Develop Bugs

Review of DX Wristband external battery + bonus accessory w/lots of pics!!!

This is a review of Wristband External battery from dx.com. http://dx.com/p/1500mah-silicone-wr...r-w-adapters-for-cell-phone-more-black-122654
I have done my fair share of battery reviews in this forum (just check my signature link), and made a decision that I'm not doing any low capacity ext battery reviews unless it's something very unique and cheap. This wristband external battery definitely qualifies as both! It's funny how every time I read about smartwatches and their poor battery life, this battery always pops into my head as something they can use as a wristband to clip their watch to lol!!! You never know, when you are away on a trip or outdoors maybe someone decides to use it, although it obviously will be a challenge with all these smartwatches that use a proprietary charging connector. But one thing this wrist band can be used for sure - when you are watching movies or recording videos or playing video games. It will come handy in any situation where you want to give your smartphone extra juice while using/holding your phone with your original case on (no need to hold separately an external battery or to get special battery case).
Advertised as 1500 mAh capacity, I wasn't quite sure how comfortable it will fit on my wrist (I do have a small wrist) and how heavy it's going to feel. To my pleasant surprise I found this wristband battery to be very light at only 85 grams and with its soft silicone mold it was very comfortable to wear. Silicone material completely wraps and seals around it so there is no worries especially when you are outdoors. The battery cells stored in 6 rectangular sections, and there is a separate section in the middle with a sealed power button and 4-led indicator. Such design makes it very flexible to wrap around your wrist. It locks with a snap button and you get two position for a smaller and a bigger wrist. The middle power section has mini-usb connector which is used to charge the wristband battery and also to charge other devices connected to it. For that occasion included in the package is a total of 13 different tips. I'm pretty sure I have seen some for Nokia phones from 6 years ago lol!!! The most important, you get your micro-usb adapter and that's all that you will probably need.
From a spec perspective, this battery doesn't have the fastest input or output charging speed and neither does it has a super high capacity. Charging speed of the battery is not a big deal since the capacity is not that high anyway. Charging speed of the device is probably close to advertised 750 mA, where using my Galaxy Charging current app it showed 600 mA and I know that app is not accurate. When I was timing charging my phone, the charging speed was more in line with 750 mA. And speaking of charging, based on the % of my battery charged in the phone, it translated into the actually capacity of closer to 1650 mAh, which is higher then labeled 1500 mAh. That was the biggest surprise considering the actual capacity is typically 30% lower then labeled. For a phone like my Note 2 with 3100 mAh battery this will obviously not charge the full battery and will not do it at max 2A charge speed, but it will definitely help if you are watching a movie or playing a video game from draining your battery. The most important point of it - the convenience of being able to wear it on your wrist while holding the phone.
Overall, I'm not saying this is a must have accessory for everybody, and for emergency back up charging of your phone you would probably want to look into 10k-15k mAh capacity batteries. BUT, for the purpose of convenience this wristband battery was designed for - it does an Excellent job, feels very comfortable, provides actually a nice chunk of battery boost, and cost about $20 plus change. And the reason I like to deal with dx.com for such gadget purchases because I prefer their customer service, selection, and them always take care of you if something doesn't work. Buying from ebay is like playing russian roulette.
Here are the pictures.
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With this review, I decided to include a bonus mini-review of another cool "toy" I got from dx.com along with my wristband battery. You guys, and maybe some gals, might appreciate that This is a review of Stainless steel manual-release folding knife with a clip. http://dx.com/p/stainless-steel-manual-release-folding-knife-with-clip-20-0cm-full-length-48331
I review a lot of gadgets and always try to share with you cool stuff I find on internet. As part of my reviews, I receive a lot of boxes in the mail and realized that I usually reach out for scissors in the house to cut/open the box with a pointy tip. So I figured I need to get a cool knife to open all my review boxes. One thing led to another, and I was browsing through dx.com catalog trying to see what they got. A lot of stuff looks cool, and it was hard to choose. Therefore I was relying on a number of positive customer feedback comments, and came across this super cool knife for an unbelievable price of only $7.99.
Now since I received and played with this knife (ok, this is not a toy but a serious tool, so "play" with CAUTION!!!), I thought it was so cool that I wanted to share it in my little review. First off, its all stainless steel. It feels very solid, has a nice balanced grip, and a decent 152 grams of weight. Folded, the knife is about 120mm, with a fully extended size to 200mm. All the pieces are held together with hex screws so you can always tighten it, if needed. It has a metal clip on one side, a well hidden rope cutter at the end-side and a window breaking solid metal point at the end point. This knife opens up with one hand flick and spring loaded assistance, and you can close it with one hand as well by pushing the inner spring leaf out of the way (btw, very impressive safety mechanism). The blade itself has a nice baked in color, while the knife handle has it painted with a shiny coat of finish (that might peel after awhile).
Overall, I thought it was a very well made piece that can find so many uses either to open a mail or for any handy activity around the house or outdoors, or just to keep it in the car since it has a rope cutter and glass breaker (for seatbelt and glass, if God forbid you need to use it). For the price of only $7.99 it was very impressive considering quality of the build and the material.
Here are the pictures.

(Review) Lepow Moonstone 6000mAh portable powerbank

Weighs at only 8.8oz, it pack's 6,000 mAh battery in a small package, enough to charge your mobile phones and more. Perfect for everyday use, longer trips and emergency situations.
initial thoughts on unpacking.
comes in a pretty nice carry case pouch.small compact easy to carry around in your pocket, or bag. comes in many colors such as green apple,bright yellow,red rose,gloss black,and white pure ivory.i choose gloss black.
Features:
high-end Li-Polymer cell batteries with capacity of 6,000mAh (S3 battery is rated as ~2,100mAh)
Two power outputs (1.2A and 2.1A) for two different charging speeds, charging your device while charging the moonstone can be done at the same time.other power banks i have tried could not accomplish these two feats at the same time.
Compatible with any cell phone, or tablet with micro USB connection, such as Blackberry, HTC, Samsung, Motorola, LG, etc.In theory you could even use it with any usb powered device as long as you have the proper usb cords.
specs below
Input:
DC 5V
Output: USB1: DC 5V/1.2A; USB2: DC 5V/2.1A
Battery capacity: 6,000 mAh
Dimension: 3.2 x 3.2 x 0.4 inches (81.28mm x 81.28mm x 1.016mm)
Weight: 8.8oz (249.476gram)
the moonstone can hold charge for up to 6 months.
charging up the moonstone takes about 8hrs overnight.
cracking it open we find 2 3000mAh slim batteries wedges in series on top of each other.
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this battery is a beast. It packs a quit decent capacity in a small convenient package which is fairly compact and light. Simple to use there is a single button on the top that, when depressed.shows a light bar scale of the charge
I will be updating this thread over the next week with real world results and usage details. myself along with my wife both owning galaxy S3's,as well as a few asus tablets.will have ample different device types to charge and check functionality on.so far it took about 2hrs to fully charge my s3 from 1%. still have 3 bars left on the battery bank out of 4.
bottom line This is a straightforward device - if you're looking for a way to extend your phones battery life while out and about,this does exactly what you need.small sleek and portable. With all of the portable battery options out there, the Moonstone 6000 stands out due to its unique design and valued accessories.The carrying case is a nice touch, and the extra USB cable that can be easily rolled up is even nicer. I highly recommend this battery charger to anyone looking for a small portable power source.
see pics.
not quit sure what the stickers were about or the key. but i figured out the fish is a usb cable wrap. pretty cool.
upon on boxing everything it came with minus the nice draw string felt carry bag.
i got bored after the review. I decided to do some customization to the case after i had it open for the battery pics.so i vinyl wrapped it. so now it looks like he has a tie when it charges. lol
Amazon Storefront: http://www.amazon.com/gp/shops/lepow
current deal on the Moonstone 6000 in Apple Green: Reduced to $29.99 from $59.99
And starting next Monday (11/25) until Black Friday, it will be decreased even more to: $24.99 from $59.99
sample provided for review.
manufacturers would you like your product reviewed? contact me......

$24.99 is a very good price for 6000 mAh battery. And with other goodies, definitely a great value.
Is that usb stick included in there? How about that suction pad, does it work with moonstone attached to it and stuck to a flat surface? I have noticed that shape of moonstone is not flat, more like a pebble. Just wondering if the extra suction pad is intended to secure it to a surface? Also, not sure if you can run free Galaxy Charging Current app (i know its free for Note 2, S4, Note 3, but not sure if you have to pay to use it for S3) or maybe any other apps or read it from your Rom the actual charging current?

vectron said:
$24.99 is a very good price for 6000 mAh battery. And with other goodies, definitely a great value.
Is that usb stick included in there? How about that suction pad, does it work with moonstone attached to it and stuck to a flat surface? I have noticed that shape of moonstone is not flat, more like a pebble. Just wondering if the extra suction pad is intended to secure it to a surface? Also, not sure if you can run free Galaxy Charging Current app (i know its free for Note 2, S4, Note 3, but not sure if you have to pay to use it for S3) or maybe any other apps or read it from your Rom the actual charging current?
Click to expand...
Click to collapse
I actually just checked charge. Fast charge placed at 1.13a normal was around 896ma. That's to my s3.says it has adaptive charge to protect phone circuit. I'll try. You tablet tomorrow All the stuff pictured came with it. Ya the suction pad works well. The USB stick is actually a microsd adapter. I'll pot more updates after a full week of testing with it.
Sent from my SPH-L710 using Tapatalk

Putting out some good juice today time from 10‰ till full and charge rate. Pretty good.
Sent from my SPH-L710 using Tapatalk

Sent from my SPH-L710 using Tapatalk

This adaptive charging on this bank is sweet
Sent from my SPH-L710 using Tapatalk

External Battery Review: Lepow Moonstone

Lepow Moonstone Review
When I was approached by Lepow to write a review of their backup battery products, I have to confess that while I was flattered by the request because, as I was told, my 'reviews' tended to be fair and unbiased, it got me to thinking about how often I've really needed a reserve power source. My lifestyle tends to revolve around either a home office where I have abundant recharging resources, or travelling in my car where I likewise have chargers. Thus, I've never purchased one for myself thinking it was a low-priority item relative to a case or screen protector. Or so I thought.
Then it happened.
I found myself away from home, in the woods using Backcountry Navigator evaluating a 950 acre property without access to AC current for a USB charger and a phone that was gasping for air. There's an old saying popularized in a certain community which contends: "better to have it and not need it, than to need it and not have it." Thus I learned the hard way that having a reservoir of available juice to recharge the electronics we rely on so much nowadays is probably a good strategy.
This review will start with the Lepow 'Moonstone' 6000mah unit, but in fairness to other vendors who might wish to have their units evaluated, I will update the thread periodically to reflect my thoughts and viewpoints as they evolve.
First Impressions:
The representative from Lepow made a very clear point about mentioning their packaging, and I have to agree there has been a fair amount of thought they've put into the presentation and construction. I'm told that the carton and other materials are enviro-friendly, even down to what is commonly called Tyvek that wraps the unit. A quick snip releases the band which seems to anticipate a product merchandised on hang pegs at retail. In my case, I received the unit in a cardboard box which is likewise recyclable. If there's anything I really can't stand, it's the sealed heavy plastic blister packs that require a hacksaw to open. I'm getting too old and too cranky to have to fight with the item I just bought, so this was a welcome change.
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Included with the packaging is a very nice heavy felt case with elastic band in which you can slide the unit, the USB cable and even a couple other (flat) things if needed which will keep the Moonstone in good condition as it bounces around along with the other things you have in the console of your car, pocketbook or briefcase.
While the shape is very pleasant from a design standpoint, my intuition and experience tell me that this unit would have greater appeal with women than men. Shapes that mimic the phone (flat and rectangular) will likely have more popularity with the fellas as it would be easier to slip such a thing into a jacket pocket, where the softer rounded shape of the Moonstone with its felt case can reside very comfortably in a handbag, resembling as it does a lady's compact or other cosmetic item that are regularly rattling around in the dark recesses of a pocketbook where wise men fear to tread. I'm told that Lepow has other designs in the works which are not as yet to market, so it would be great to evaluate those also when the time comes, but for now we'll go with what we've got.
The construction quality seems first-rate. It has a nice solid feel, and along with the other quality components, the battery itself is Lithium Polymer which is not only more reliable for longer term storage, but also less hazardous. Overall, it makes a very favorable impression.
For those of you who happen to order from Amazon, the Moonstone ships with some very cute accessories which can be used to enhance its personality included in a heavy vinyl(?) case tucked away underneath the bottom cardboard shelf. While I tend to be more 'down to business' in my needs, I confess some of the dots (especially the skull/crossbones one) had some appeal which seem to go well with the fishbones. And, for the record, I'm still trying to figure out what bullet-proof material that case is made from.
Charging & Performance
One of the hallmarks Lepow claims for their product is the ability to know what the charge state is by pressing the button which activates a series of four LEDs corresponding to the reservoir state, and not overpowering the target device. Lepow's unit has three ports, one micro USB for charging the unit itself, two regular USB ports corresponding to 'fast charge' a second 'slow charge'. The company claims that their 'intelligent' electronics will adapt to the phone and deliver only as much current as the unit can handle, a reassuring feature when working with equipment of unknown capabilities.
The unit I received seemed to be fully charged (as you can see in the video below) so I proceeded with this test below:
HTC One
Drained to 10% charge level
Phone left on/running during charge
Moonstone 'fast charge' port selected
In this first test, the phone took some five hours to charge which isn't exactly surprising given the phone is consuming power as it's being charged. I was connected to my home WiFi router and I even had a couple calls come in so I guess the amount of time to charge is to be expected under these conditions. However the charging stopped at 94% which was somewhat surprising. Out of fairness, perhaps using an external power source for charging a phone while its in use causes the unit to turn off, fearing it's delivering too much juice for the target device, which if correct, is comforting and unexpected proof that the company's claim for 'intelligent' charging that won't overpower the device has been confirmed.
The second test was more accurate conducted as it was under more controlled conditions.
Recharge Moonstone:
5 hours from 1 blinking light to 4 LEDs
4th light didn't stop blinking until the next morning, so it's hard to say how long to a full charge just at the moment.
Let unit sit for about 20 minutes
Charge of HTC One: 2 Hours with the phone powered off using fast charge, 100% level on phone achieved. Four lights still remaining on Moonstone to indicate charge status of 100% until the unit powered down and I reconfirmed the charge state which revealed only 1 LED.
On the whole, the Lepow Moonstone is both easy and fun to use, attractive, and certainly an option worth considering for any of you who are thinking about a backup power supply... and also for those of you who like me - aren't.

Any price on this? This is something my girlfriend wants!!

The last time I checked, they had a fire sale for $20 on Amazon.
By a number of reviews that showed up on XDA, I do see Lepow guys doing a good marketing work Though originally I did turn down the review, I think this is a good external battery and a value for $20. One thing I'm surprised, unless I missed it, nobody really tested to calculate the actual capacity of this battery. Due to efficiency loss (through 5V usb port while the internal battery is at 3.7V), you typically loose about 25-30%, so the actual capacity will be somewhere between 4000-4500 mAh. Would be cool for testers to determine it, using your phone/tablet battery capacity as a reference.

[Review] Poweradd Pilot C 10,000mAh Powerbank

Hi all,
Continuing on my new found hobby of tech reviewing I wanted to share with you my thoughts on some Poweradd products I've recently got my hands on.
Unboxing
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The powerbank comes in a fairly well packed black box with a few product details on the front and back. On the font it lists
Quick Charge with no memory effect
USB charge
High capacity
easy operation
safety protection system
The last one - safety protection system - is really key for me seeing as im planing on plugging in my £500 smart phone and my tablets and camera into this thing so im putting a lot of trust in it and that makes me feel a bit more at ease!
Not wanting to go on too much about the packing, but it does feel like a really well made packet that the powerbank comes in that really just added to the feel of high quality, it didnt arrive in just a plastic bag with no instructions so i do feel safe trusting my valuables to it!
On the back of the packet it lists a few more details, it uses a Li-Ion battery with a capacity of 10,000mAh (37Wh)!. The weight is listed as 8.68 ounces with a +/- 0.35 ounce variance. I was a bit disappointed not to see any promises of how many recharge cycles this thing would last for written onto the box.
Ok so lets open this thing up finally!!
inside the box is just the powerbank, a Microusb lead and a small set of instructions. Little disappointed that there isnt a little pouch or something to keep the thing in as you see with some of the Ravpower powerbanks. Also the Micro USB lead felt excessively long at about 1m I use these things in my pocket to charge my phone in my pocket so the extra cable felt a little excessive but on the plus point it does reach the outlet on the floor so not too worried about that.
The powerbank its self feels quite chunky (1.26 inches thick) but its sturdy. The weight is noticeable and isnt central in the small box, feeling like the majority of the battery is down the bottom end. It fits into your hand quite snugly. The body is made from a thick feeling strong plastic with a a textured body making it easy to hold (although giving my camera a nightmare to foucs on the body! ) I've tried to get my fingers into any gaps in the body to try and pry apart to do a bit more of a teardown and it feels like basically it wont come apart without destroying it so it does feel very well put together.
Moving round the powerbank there are 2 USB outlets on the top and a Micro USB inlet. The 2 USB outlets have 1 dot or 2 indicating the amount of juice they supply from the powerbank and also meaning that you can charge 2 devices at once!
USB1 is rated at 5V, 1A
USB2 is rated at 5V, 2.1A
the 2.1A slightly confused me as most devices are 500mA, 1A or 2A, not sure why the extra 100mA was felt needed and it made me feel a little nervous charging my S4 which is rated 5V, 2A (I wasnt worried it would explode but i just want sure about the long term effect on the battery.)
The input Micro USB is rated at 2A (yay) meaning you can charge this thing up pretty quick as 10,000mAh will take a while to charge on 500mA PC USB.
Moving round to the side there is a single button which can be used to show the amount of power in the device. There are 4 blue LEDs on the front to signify levels of charge. A little disappointed that there is no LED light option as you get on some of the powerbanks which can be handy when fumbling in the dark as I often find myself when camping!
So thats the product!
In summary:
Positive points
+Massive capacity
+2 USB ports with different rating
+can charge 2 devices at once
+2A input so quick charge
+Feels well put together
+uses micro USB (long live the standard cable!)
+LEDs to show battery capacity
Negative points
-feels a little chunky, im ok with the weight given the capacity but the thickness almost excluded is from jeans pocket storage
-no LED torch
-USB lead supplied is a little long
-weight is off center - a minor point really but makes it feel end heavy to hold.
-No supplied storage pouch! Feels like PowerAdd missed a trick with supplying a cheap little bag to make this feel like even more of a premium product.
-The USB cable supplied is charge only so cant be used for data, feels a little mean
Overall im fairly happy with this and it feel rugged enough for my camping trips away or to be slung in a backpack and not worry about it coming apart or breaking.
My Score out of 5:
:good::good::good::good:
Hope everyone found this useful. I'll upload a video review shortly when i get my camera working. Feel free to ask me any questions.

:good: nice and conplete review, pity nobody has taken notice
Sent from my LG-E400 using XDA Free mobile app

[Review] Poweradd Slim 2 - 5,000mAh Powerbank

Hi all,
Continuing on my new found hobby of tech reviewing I wanted to share with you my thoughts on some Poweradd products I've recently got my hands on. This review is about the Slim 2 powerbank with a 5,000mAh capacity.
Unboxing
The powerbank comes in a fairly well packed black box with a few product details on the front and back. On the font it lists
Quick Charge with no memory effect
USB charge
High capacity
easy operation
safety protection system
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The last one - safety protection system - is really key for me seeing as im planing on plugging in my £500 smart phone and my tablets and camera into this thing so im putting a lot of trust in it and that makes me feel a bit more at ease!
Not wanting to go on too much about the packing, but it does feel like a really well made packet that the powerbank comes in that really just added to the feel of high quality, it didnt arrive in just a plastic bag with no instructions so i do feel safe trusting my valuables to it!
On the back of the packet it lists a few more details, it uses a Li-Ion battery with a capacity of 5,000mAh (18.5Wh)!. The weight is listed as 4.41 ounces with a +/- 0.35 ounce variance. I was a bit disappointed not to see any promises of how many recharge cycles this thing would last for written onto the box.
Ok so lets open this thing up finally!!
Inside the box is just the powerbank, a Microusb lead and a small set of instructions. As with the other powerbank (Pilot C), the Micro USB lead felt excessively long at about 1m I use these things in my pocket to charge my phone in my pocket so the extra cable felt a little excessive but on the plus point it does reach the outlet on the floor so not too worried about that.
The powerbank its self feels nice and sturdy and is a nice feel in your hand. It isnt too heavy and has a nice matt plastic finish around the sides and top. The shape is a slight hexagon with gentle corners making it easier to hold. The thing felt very well put together, and from the weight it feels like the battery is in the bottom section and the USB circuit is in the top. I kinda have an urge to twist the top off, i've given it a bit of a twist and there is no movement so its pretty well glued in there but I guess this is how it comes apart. Not having a death wish or wanting to be covered in Lithium I didnt try to take this apart...
On the top of the powerbank there is 1 USB outlet and a Micro USB inlet. The USB outlet is rated at 5V, 1A as it the Micro USB input, so if you get one of these do be careful not to plug it into a high amp charger and damage the battery.
As with most powerbanks, there is a single button which can be used to show the amount of power in the device. There are 4 blue LEDs on the top to signify levels of charge. A little disappointed that there is no LED light option as you get on some of the powerbanks which can be handy when fumbling in the dark as I often find myself when camping!
So thats the product!
In summary:
Positive points
+Good capacity at 5,000mAh and fairly good weight
+Feels well put together
+uses micro USB (long live the standard cable!)
+LEDs to show battery capacity
+small enough to slip in a pocket
+matt finish doesnt feel like it will show any scratches
Negative points
-USB lead supplied is a little long
-No supplied storage pouch! Feels like PowerAdd missed a trick with supplying a cheap little bag to make this feel like even more of a premium product.
-The USB cable supplied is charge only so cant be used for data, feels a little mean
Overall im fairly happy with this and it feel rugged enough for my camping trips away or to be slung in a backpack and not worry about it coming apart or breaking.
My Score out of 5:
:good::good::good::good::good:
For the price it feels like a good buy.
Hope everyone found this useful. I'll upload a video review shortly when i get my camera working. Feel free to ask me any questions.

update please
I got one of these 3 months ago and love it, I plan to pick some more up as stocking stuffers,. You have had yours a lot longer than me. Can you give an update to the product ? Still holding charge working well? thanks

Do the last led stop flashing when the powerbank is fully charged?
It's confusing. Mine flashes forever, as long as it's charging.
Another point is that they claim they can charge up a smartphone twice. I charged my HTC M9 and the charge fell from 4 leds to ONE. It's just mine or you guys experience the same thing?
Thanks!