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20+ Years of Alcon Experience. FREE SHIPPING on all Brake Kits (USA) - Open M-F 8-5
20+ Years of Alcon Experience. FREE SHIPPING on all Brake Kits (USA) - Open M-F 8-5
Battery Tender battery chargers part BTN021 fits Battery Tender 12v 1 25amp Battery Charger Plus

Product Features

Origin Guarantee Authorized Battery Tender Dealer
Factory Warranty Factory Warranty
Street Street Approved
Sporting Sport Driving Use
Street/Track Dual Purpose Street/Track
Track/Race Track/Race Approved
Armored/Offroad Armored, Offroad & Heavy Duty Rated

Battery Tender 12V 1.25AMP Battery Charger Plus

by Battery Tender
SKU BTN021-0128
Save 9% Save 9%
$64.95 USD
$64.95 USD - $64.95 USD
$64.95 USD
$58.95 USD
$58.95 USD - $58.95 USD
$58.95 USD

Lead Time: Good: 1-2 Days

Est. Ship By: Tuesday, April 14

Est. Delivery: Thursday, April 16 - Monday, April 20

These estimates are based on recent lead times for this item and are not guaranteed. We will contact you if your order will be outside this estimate.

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For ✔guaranteed fit (only applicable if you buy direct from Alconkits.com) check our certified applications below:

PRODUCT INFORMATION

Battery Tender 12V 1.25AMP Battery Charger Plus is a purpose-built battery charger/maintainer designed to safely charge and maintain lead-acid (flooded, AGM, GEL). 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 maintainer: small to midsize starting batteries, seasonal storage

Key technical details

  • SKU: 021-0128
  • UPC: 734357001280
  • System voltage: 12V
  • Output: 1.25A
  • Charging program: 4-step smart maintainer (no overcharge float mode)

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 (flooded, AGM, GEL). Always confirm your battery type and voltage before connecting.
How do I choose the right amperage?
Lower amps are ideal for maintenance and small batteries; higher amps are better for faster recovery on larger batteries. If unsure, pick the lowest output that comfortably meets your use case.
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Related search terms

  • btn021
  • battery
  • tender
  • 12v
  • 25amp
  • charger
  • plus
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