Drew Technologies DRWBATMTNR90 Battery Maintainer/Charger

We all know how important it is for a strong and stable battery during ECU programming! Drew Technologies introduces our approved Battery Maintainer which can also serve as a Smart Battery Charger! Get clean power with only 1V AC ripple, dual float voltage of 13.6V or 14.2V (OE-dependent). The durable protective housing with exterior solid brass terminals and step-by-step instructions make it easy for storage, use and carrying.