ITEM NAME:12V Lead Acid Battery Charger Car Motorcyle Boat RV Float Charger/Maintainer Descriptio n specificationï ¼Å¡.Applicable model: 12V storage battery applicable to battery car, motorcycle, golf car and family car (except bus and truck which belong to 24V storage battery). LED Lead Storage Battery Detector. Purpose: it can quickly detect the 12V car battery and charging system, and the corresponding LED to give instructions.