Bought this on eBay so I can use the battery pack to charge my cell phone
(and digital camera,PDA,MP3,MP4 etc) while traveling. It cost me around $18 shipped. The battery pack has a solar cell built-in to charge it off from sunlight (particularly useful at off-gird locations). White LED lights are present to use the USB charging pack as a flash light.Came with the following stuff in box:
1 x Mini USB cable
1 x OTG cable (used for charging through data cable of your own cell phone)
1 x Mains USB charger
6 x Adapters (iPhone, Sony Ericsson, Samsung, Mini USB, Nokia, PSP)
1 x AC mains charger
1 x Manual (very hard to understand)
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| Unboxing of the 2600mAh Solar USB Charger |
However, as compared to my previously bought solar chargers which had no charge control and died quickly, this one appeared to have some kind of a charge controller. The charger has a solid metallic feel and seems to be made of steel.
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| Top view of the 2600mAh solar charger. There is a red LED bar-graph display to display current battery charge level. Note that this bar-graph only lights up when battery is being charged and now when it is being discharged |
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| Front panel of the 2600 mAh charger with Mini USB connector, OFF/IN/Chardge switch, voltage selector switch and LED light switch. The output voltage can be set to 4.5V, 5.5V, 6.5V and 9V |
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| Back side of the charger state the capacity of internal battery capacity of 2600 mAh |
I decided to open the charger and take a at look what is inside.
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| Charger opened - Li-Polymer battery, Solar Charger, Charging Circuit |
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| Circuitry shows the battery protection S-8205A IC, LM324 op-amp for driving fixed 4-LED bar-graph battery level indicator and XR2201 DC-DC converter to output different voltages and regulate battery voltage supply |
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