Battery Tender 4 Bank 12V 1.25A Battery Charger is a purpose-built battery charger/maintainer designed to safely charge and maintain lead-acid (AGM, sealed maintenance free, flooded). It uses an automatic charging profile and transitions to maintenance/float once the battery is full.

Best for

• Best when you want a 1.25A per bank maintainer: small to midsize starting batteries, seasonal storage
• Best for 4-battery setups: multiple vehicles, fleets, or shop benches

Key technical details

• SKU: 022-0148-DL-WH
• UPC: 734357214819
• System voltage: 12V
• Output: 1.25A per bank
• Banks: 4
• Safety timer: 72-hour safety timer
• Protection features: reverse polarity + spark-proof

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 lead-acid (AGM, sealed maintenance free, flooded). 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.