Letouch Bossa ++ 3200mAh 6.5mm Ultra-thin Lightweight Power Bank / External Battery Smart Output / Built-in Micro USB Cable for Iphone 5, 5s, Iphone6, 6plus, Ipod (blue)
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- Product Type: Cables
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New version Letouch Bossa ++ is a part of Letouch 's continuing pursuit for creating highly efficient and convenient products for our customers. Release you from the problem of low power quickly and effectively while traveling. It is light weigh and compact to carry with anywhere with a ultra thin size. It is your optimal choice of power bank. Built-in Micro USB A portable battery charger is not really portable if you are forced to carry charging cables that easily break or tangle. Our smartly designed external power bank has a built-in Micro USB which means you do not have to bring an additional cable with you when you need it the most. Ultra-thin: Lightweight and compact With the weight of 150g, the item is in a compact size 140 x 70 x 6.5mm while it is of large battery capacity of 3200 mAh.With compact size and lightweight, it is an absolute must-have product in your home and for your travel. Built-in protection system&LED light Built-in over- charged, over-discharged, protection protect your devices from damage. The four LED indicator help you easily know the charging status and battery level to avoid charging accident effectively. Compatibility It is universal fits for Iphone 6 / 6 Plus / 5s / 5c / 5 / Ipod 7 / Ipad Mini / Retina / Ipad 4 / Ipad Air etc TECHNICAL Specifications : Size: 140 x 70 x 6.5mm Capacity: 3200mAh Input: 5V / 1A Output: 5V / 1.6A Weight:150g Package Includes: 1xUltra- thin Lightweight power bank 1 x User Manual
Most Helpful Customer Reviews on Amazon.com (beta)
It comes presented in a transparent plastic case and on the whole looks very appealing in terms of presentation.
If you are looking for a gift to give to someone that uses a battery hungry device then this would be ideal, along with other gifts of course!.
It's well made and with dimensions of 4.17 x 2.24 x 0.4cm it's about the same size as a smartphone. I received the blue colour and I was more than happy with my choice.
All the operational 'controls' are located at one end and here we find the power button, in port for charging and the USB flexible rubber / silicone cable for external charging via an 8 PIN connector. The LEDs are very useful as they tell you what level of charge you have left.
At 3200mAh this is a small to medium size in capacity classifications and I have been using it faithfully to charge my iPhone 6. It's worked very well and I can't get over how nice it feels in my hand with it's smoothness and how thin it is.
The LeTouch 3200mAh power bank comes supplied in a clear plastic tray alongside…
An English, Spanish, French and Chinese instruction manual.
A rather cheap looking 16.5cm long (excluding connectors) flat USB A to Micro B charging cable.
All packaged within a retail style card box with clear plastic display window.
The following measurements are taken with a digital calliper and are accurate to within 0.1%.
Length = 140mm
Width = 68.8mm
Depth = 6.2mm
Weight = 104g
The LeTouch 3200mAh power bank is very much a device of two halves. The front is made from a very attractive premium looking metallic blue aluminium with a satin finish bearing the LeTouch logo in one corner.
The rear however, is a rather cheap looking and feeling white plastic. There is a noticeable gap where these two sections join and even a slightly raised section in one of the corners. The Micro B USB Input port doesn’t sit straight within its opening and looks slightly disfigured.
The hardwired USB Micro B output cable doesn’t sit well in its recess and looks rather untidy. While the connector for this cable fits securely into its recess on the rear it is a bit of a pain to remove requiring use of your fingernails. Sadly, even after a brief period of testing the use of fingernails to remove it has started to cause some wear on the edge of the plastic connector.
Given the small size of the connector and its right angled design it is also not the easiest cable to remove once plugged into a device.
On the end edge of the power bank there is a small non illuminated power button. To the side of this there are 4 very small LEDs which act as a charge indicator of the power banks capacity, each light representing a 25% charged capacity. When all 4 are lit the power bank is full and when there is just one remaining and it is flashing the power bank is empty.
I have to admit to not being the biggest fan of hardwired outputs when there is no other output alternative as should this break the device is rendered useless. I realise that it's convenient and compact but honestly a secondary backup port would be most welcomed.
Usually when testing power banks I test their capacity using a DROK® Mini USB Current Voltage Charger Detector Multimeter Power Capacity 0-99999mAh; 0-30.00W; DC 0.00-3.00A; DC 3.50-13.0V Ampmeter Voltmeter Multi-in-1; OLED Mobile Testing Power Monitor with Screen Rotation Function; Power-off Storage Function; Over- and Under-voltage Alarm Function. Unfortunately the LeTouch only has a micro B output and the multimeter has a USB A connection, as such this was not possible.
As such I had to do it the old fashioned way doing timed testing.
The power bank was first obviously left to charge overnight till 100% full.
Motorola Moto G 2nd Gen. The Moto G which has a capacity of 2070mAh and was already 80% charged. The phone was switched on, WiFi was on but everything else was off including the screen.
After 18 minutes the phone was charged 10%
After 27 minutes and 30 seconds the phone was charged 13%
After 36 minutes and 30 seconds the phone was charged 15%
After 41 minutes and 30 seconds the phone was charged 16%
The test was stopped at this point
The total estimated output of the power bank while charging the Moto G was 334.6mAh .
Total estimated power bank output at this point = 334.6mAh.
Motorola Moto G 2nd Gen. The Moto G which has a capacity of 2070mAh and was already 69% charged. The phone was switched on, WiFi was on but everything else was off including the screen.
After 13 minutes and 20 seconds the phone was charged 12%
After 27 minutes and 5 seconds the phone was charged 19%
After 45 minutes the phone was charged 26%
After 55 minutes the phone was charged 31%
The phone was now fully charged
The total estimated output of the power bank while charging the Moto G was 646.0mAh.
Total estimated power bank output at this point = 980.6mAh.
Samsung S2. The S2 which has a capacity of 1800mAh and was already 18% charged. The phone was switched on, WiFi was on but everything else was off including the screen.
After 17 minutes and 9 seconds the phone was charged 13%
After 30 minutes and 30 seconds the phone was charged 32%
After 38 minutes and 20 seconds the phone was charged 38%
After 50 minutes and 15 seconds the phone was charged 48%
After 1 hour and 1 minute the phone was charged 55%
After 1 hour and 9 minutes 10 seconds the phone was charged 60%
After 1 hour 25 minutes the phone was charged 68%
After 1 hour and 34 minutes 30 seconds the phone was charged 71%
After 1 hour and 43 minutes 30 seconds the phone was charged 74%
After 1 hour and 54 minutes the phone was charged 77%
After 2 hours and 8 minutes 15 seconds the phone was charged 80%
After 2 hours and 17 minutes 15 seconds the phone was charged 82%
The phone was now fully charged
The total estimated output of the power bank while charging the S2 was 1481.7mAh.
Total estimated power bank output at this point = 2462.3mAh.
Samsung S2. The S2 which has a capacity of 1800mAh and was already 48% charged. The phone was switched on, WiFi was on but everything else was off including the screen.
After 9 minutes the phone was charged 3%
The test was stopped at this point as the power bank was dead.
The total estimated output of the power bank while charging the S2 was 54.4mAh.
Total estimated power bank output at this point = 2516.7mAh.
The total output of the LeTouch power bank from fully charged to being completely dead during one somewhat slightly non scientific test that was not conducted in a controlled environment with results that should not be taken too seriously and are as such just a guide gave an output reading of 2516.7mAh.
With the power bank having a capacity of 3200mAh this indicates an efficiency of 78.64%. The average efficiency of these devices is about 80% and more premium devices offing an efficiency of around 90% with few managing more than 93%. Considering the price the efficiency is about what should be expected.
In reality there is probably a +/- 2% to 3% margin of error in my results.
A couple of additional points
After 4 hours of constant use the power bank never even became slightly warm to the touch.
The power bank takes 60 seconds to charge 13mAh on an Anker 40w 5 power desktop charger. This indicates an estimated charge time of 4 hours.
Full disclosure I was provided with a sample product in exchange for a fair and honest review. No attempt was made to influence my opinion and what follows are my own thoughts based on the use of this item.