This is a very good battery. It is relatively large, it is 2x the size of another battery I have in 2600mAh but interest is that there is an indicator light indicating the level of charge remaining. This is important if not essential because of the blow, the other 2600mAh battery when it is empty, it is known that at the last moment, it's a shame! But here, with this one, there are 4 small blue light points indicating the remaining level. So ended surprises!