After long hesitation, I opted for this backup battery that had the advantage of offering a charger and cables. My first experience convinced me: it gave back 6 hours of battery in my GPS Hiking (3.5 "display on permanently) while I had not bothered to load the block (only 3 of 4 diodes lit). Its size is perfect to fit in a pocket or backpack. Only downside, the micro-USB cable is not compatible with my Samsung Galaxy Ace, but I already owned one. So not a real concern. Recharging with the supplied charger is a bit long (approx. 12) but again nothing insurmountable. I am delighted with my purchase which replaces a defunct battery 8800 mA, another brand, more cumbersome without charger and paid more than double it! In short I highly recommend this product (hoping its life gives me satisfaction to the end ...)
