AILI Battery Monitor 5-120V +/- 400A Voltage Current Remaining Capacity No need Shunt - - Amazon.com
Amazon.com: battery shunt
Amazon.com: Renogy 500A Battery Monitor, High and Low Voltage Programmable Alarm, Voltage Range 10V-120V and up to 500A, Compatible with 12V Lithium Sealed, Gel, Flooded Batteries : Automotive