Tractor Battery Chargers

For standard 12V farm equipment — tractors, ATVs, utility vehicles, and small engine equipment — the Battery Tender® Plus 12V 1.25 Amp handles charging and maintenance for batteries from 14 to 80Ah. For large 12V tractor batteries from 80 to 150Ah, the PowerTender® 5 to 10 Amp provides faster recovery. For 24V or 48V electric agricultural equipment and utility vehicles, the PowerPlus 24V 20 Amp or PowerPlus 48V 15 Amp provides full-voltage charging and ISM maintenance. All models support both lead-acid and Lithium battery chemistries.

Connect a Battery Tender® charger and maintainer to the tractor battery after the last use of the season and leave it connected throughout winter storage in the barn or shed. For lead-acid batteries, ISM float charging prevents the sulfation and freezing that destroy batteries during extended winter storage — a frozen discharged battery cracks and fails permanently. For equipment with Lithium batteries, use a Multi-Chemistry PowerTender® set to Lithium for the correct charging and storage protocol. For tractors without easy access to the battery, install a Battery Tender® ring terminal harness and route the quick-disconnect to an accessible exterior location.

A single PowerTender® 3 to 5 Amp Multi-Chemistry model handles most farm fleet needs — connecting sequentially to each piece of equipment. For simultaneous charging and maintenance of multiple batteries, the PowerTender® 5-Bank or 10-Bank charger and maintainer maintains up to 10 batteries independently with per-bank voltage (6V or 12V) and chemistry (lead-acid or Lithium) selection. For equipment with 6V batteries such as older tractors and vintage farm machinery, the Battery Tender® Plus 6V or the 6V/12V selectable model covers both voltage classes.

If a Battery Tender® charger and maintainer has been connected all winter, no preparation is needed — the battery will be at full capacity and the equipment will start on the first attempt. If the battery was stored without a charger connected, use a PowerTender® 5 to 10 Amp to charge and recover it before startup: connect, allow a full ISM charge cycle of 8 to 12 hours for a depleted battery, and check voltage before attempting to start. A Battery Tender® 12V/6V Battery Tester gives an immediate health assessment — if the battery will not hold voltage after a full charge, sulfation has progressed past recovery and replacement is needed before the season begins.