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Extreme Max

Extreme Max 1229.4023 Battery Buddy 4-Bank Battery Charger/Maintainer

    • Based on 624 reviews
Condition: New
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$85.95 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, May 6
Order within 12 hours and 44 minutes
Available payment plans shown during checkout

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Style: 4-Bank Charger


Features

  • Allows simultaneous charge of up to four 12-volt lead-acid batteries - Each cord set measures 4' 10" in length for maximum efficiency and range
  • 12V, 2A per charging bank
  • LED light indicators show battery status
  • Protection against wrong connections and short-circuiting
  • No risk of overheating charger or batteries

Description

The Battery Buddy 4-Bank Battery Charger/Maintainer is a multi-step battery charger giving you the ability to charge up to four 12-volt batteries simultaneously and maintain them at their proper storage voltage. Voltage flow during the charge is regulated and allows the batteries to be fully and safely recharged without overcharging them. Note: The Battery Buddy 4-Bank battery Charger is not waterproof. Includes a one-year limited warranty.

Brand: Extreme Max


Color: 4-Bank Charger


Product Dimensions: 14.37"D x 11.42"W x 3.74"H


Item Weight: 3.8 Pounds


Output Voltage: 12 Volts


Product Dimensions: 14.75 x 11.5 x 3.75 inches


Item Weight: 3.8 pounds


Item model number: 1229.4023


Date First Available: September 9, 2016


Manufacturer: Extreme Max


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Good product, great price
Style: 4-Bank Charger
So far, so good
Reviewed in the United States on February 6, 2025 by Amazon Customer
    • Battery maintenance
Style: 4-Bank Charger
This works great for maintaining my boat batteries for the winter.
Reviewed in the United States on January 16, 2025 by Andy
    • Charging power wheels.
Style: 4-Bank Charger
Review Image by vitaly gnatyuk vitaly gnatyuk
Review Image by vitaly gnatyuk vitaly gnatyuk
Larger than thought it would be, however doesn't matter since I had space to mount it under the kids fort. The four charging wire are a little short, but made it work. Overall, a nice unit. Will see how long it lasts being outdoors, but under cover.
Reviewed in the United States on October 26, 2024 by vitaly gnatyuk vitaly gnatyuk
    • Good for price
Style: 4-Bank Charger
Surprised how light it is. Works fine if your intent is to slow charge, just do the math & realize it take a couple days to charge a100Ah battery
Reviewed in the United States on February 16, 2025 by Brent Short
    • Great product
Style: 4-Bank Charger
Worked great
Reviewed in the United States on February 14, 2025 by Buck
    • Perfect for my 24-volt battery system
Style: 2-Bank Charger
This charger is working great for my two 12-volt batteries wired up in a series to give me 24-volts. I can connect it to the batteries using the connectors it comes with and that makes charging the boat so fast and easy. Definitely a good purchase.
Reviewed in the United States on September 6, 2024 by James K.
    • Battery maintainer
Style: 4-Bank Charger
Love this, one charger 4 items maintained
Reviewed in the United States on March 23, 2025 by Darrell Jones
    • Only kinda works
Style: 4-Bank Charger
First time using one of the banks and it’s dead, only 3 of the 4 banks have power.
Reviewed in the United States on April 3, 2025 by Corey & Lacey

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