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8000mAh Solar Travel Power Bank with LCD Display.

• 8000mAh lithium polymer battery
• Waterproof and dustproof
• Drop-resistance
• LED flashlight (double click power button)
• LCD charge indicator
• Solar charging: 5V /200mA
• Input: DC 5V/1A
• Output: DC 5V/1A
• Dimension: 13.7×7.4×1.6cm

Additional info:

Tear down:

• The case would be water resistant, but would not survive being immersed in water, it is no water proof.
• The battery in my sample is rated at 4000mAh, not 8000mAh as stated (and printed on the case).
• The solar cell is not really a practical way of charging the battery. In the best conditions, with 100% efficiency it will take 40 hours to charge a 8000mAh battery. So under the best condition, with 8 hours of strong sunshine a day, it would take 5 days to charge. Perhaps if you were marooned on a desert island near the equator, it would be useful, … if there was also cellphone coverage there …