Battery Fuel Gauge - Onboard Marine (3 x 12v Trolling Battery)

3 x 12v Trolling Battery. Rugged PC ABS polymer case/water resistant design. Accurately displays battery pack state/charge status. For use with Lead Acid (Wet Cell), AGM and lithium batteries With DeltaView Link App - View charge status from your wireless device. TROUBLE FREE easy installation. Connect it and forget it! Advanced microprocessor constantly evaluates battery pack state. May be used in many types of applications including: Bass boats, pontoons, house boats, sports fishing boats and other marine vehicles... Diameter 2-1/4" x length 2-1/2", requires 2" cutout. Made in the USA and built to last.