Battery Tender 5 Bank 6V/12V 4A Selectable Battery Charger is a purpose-built battery charger/maintainer designed to safely charge and maintain 6V/12V flooded, AGM, GEL; 12V 4-cell LiFePO4. It uses an automatic charging profile and transitions to maintenance/float once the battery is full.

Best for

• Best when you want a 4A per battery maintainer: small to midsize starting batteries, seasonal storage
• Best for 5-battery setups: multiple vehicles, fleets, or shop benches

Key technical details

• SKU: 021-0133-DL-WH
• UPC: 734357113310
• System voltage: 6V/12V
• Output: 4A per battery
• Banks: 5
• Safety timer: 25-hour safety timer

Quick technical Q&A

Will it overcharge my battery if I leave it connected?

No—once the battery reaches full charge, it switches to a maintenance/float stage to hold storage voltage instead of continuously charging.

What battery chemistry is it meant for?

This unit is intended for 6V/12V flooded, AGM, GEL; 12V 4-cell LiFePO4. Always confirm your battery type and voltage before connecting.

Do the banks charge independently?

Yes—each output/bank is isolated so one weak battery won’t pull down the others; each battery gets its own charge profile.