Lithium Battery - BSLi-13 Ready to use : No need for preparation, just Plug-and-Play, Voltage - 12.8 V 5 Ah (60W), State of charge indicator integrated, Lighter weight * up to 70% than lead acid batteries, Multi-positioning mounting - up to 180?, No acid, no leakage risk, no heavy metal, no toxic, Extensive cycle life * over 2000 cycles, Heat temperature resistance up to 446?F, Fast charging capabilities, Very low self discharge, Impressive cold cranking performance, Brass terminals, Silicone sealant for excellent sealing performance