... etccycle life600-800 timesCharge MethodCC/CVThe lithium battery main advantages 1,The lithium battery has much higher energy. ... With high stored energy density, The lithium battery has is the lead acid batteries about ... six to seven times,2,The lithium battery has Long service life, service life can ... not need worry about its life ,3,The lithium battery working voltage is 3.7 V or ...