The Battery Temperature Sensor (BTS) is designed for the Abso Chargers series Inverter/Charger. The sensor has a 25 foot cable attached and it mounts to the battery. It measures the temperate, which automatically adjusts voltage to help ensure full battery temperature compensated charging.
DMT1250 DC to DC charger listed at: https://www.ebay.com/itm/143309987713
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