The Li-D1600XRCK by XS Power is a combo deal consisting of a Li-D1600XR Racing Series 16V Lithium Battery and Li1625 25A 16V High-Frequency Lithium Ion IntelliCHARGER. The battery has a maximum current capacity of 1,080A. Watt-hour rating is 954Wh, cranking amps are 540CA, lead-acid equivalent (PbEq) for cranking amps is 810CA, amp hours are 59.4Ah, and lead-acid equivalent (PbEq) for amp hours is 178.2Ah. BCI group number for this battery is 34. The polarity layout for this battery is L.