Go Power - GP-BMK-25, Battery Monitoring KitGo Power GP BMK 25, Battery Monitoring Kit SKU: GP BMK 25 View your batterys performance with the Go Power! Battery Monitor Kit (GP BMK 25). Fit for all battery types, the GP BMK 25, gives you easy to understand battery stats at the push of a button. Featuring customizable low voltage and low capacity alarms, this unit come with a 3 year warranty. Monitor essential battery statistics including: Time left at Current Draw State of Charge Capacity