The 19.2v 3.5Ah C3 diehard lithium-ion battery offers a loger lifespan and retains its charge 5x longer than similar NiCad NiMh batteries, fade-free power,make your process completed perfectly,self-discharge is lower and charge faster
No memory effect, can be charged or discharged as needed without loss of capacity. It has built-in protection against potential damage caused by overcharging,overheating and short-circuit protection
If you don't plan on using the Power Tool Battery for a month or more, store it in a clean, dry, cool place away from heat and metal objects. Ni-Cd, Ni-MH and Li-ion batteries will self-discharge during storage; remember to recharge the batteries before use