CHF16.95
TOP Solar
20000 mAh
Question about TOP Solar
27,000 mAh: Charge multiple devices. 10,000 mAh: Charge your smartphone 1 to 2 times 5,000 mAh: Charge your smartphone 1 time That means you could charge your smartphone about 4 times, not bad.
Not a whole 4 times. I think the efficiency is about 80%. I am very satisfied with this item.