Ecofriendly li-ion battery packs for e-bike,EV,UPS,Solar,Wind Cell material:LiFePO4 CE,EN15194,ROHS Customer design available ... 20A (2.0CA discharge)Weight: 330 + - 10g Recommended tempreture for transportation: 20 degrees Working temperature: charge 0-50centigrade discharge -20 ... as per request.Customized designs are available and welcome.For more detailed specification, please consult GTL .