Some people say that you shouldn't allow a Li-Ion battery to become fully exhausted before recharging, other people say it doesn't matter. As China rechargeable battery supplier, now I want to share some basic information about the Li-ion batteries with you guys here.
 
The truth is, with modern Li-Ion batteries it doesn't really matter because their discharge is closely regulated by on-board circuitry. This used to be an issue with the old NiCd batteries because they could discharge to such a point where they from Li-ion rechargeable battery wholesale would become impossible to recharge (those batteries also didn't like being charged too often and were much more sensitive to temperature). The same goes for lead-acid batteries, which also don't take too well to being discharged too much unless they are rated for "deep cycle."
 
From this, we can see the profits by using Li-Ion batteries. So there are lots of people buying hot sale battery charger for their daily use.