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Battery Tender

Battery Tender 10 Bank Multibank Charger - 40 AMP (4 AMPs Per Bank) - Selectable 12V / 6V - Smart and Switchable 12V Multi Battery Charger and Maintainer - 021-0134-DL-WH

    • Based on 79 reviews
Condition: New
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$559.96 Why this price?
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Apr 16
Order within 14 hours and 36 minutes
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Features

  • 10 Charging Stations: Charge up to ten 12 volt or 6 volt batteries at 4 AMPs simultaneously; automatically switches from full charge mode to float charge mode for optimal long-term battery health
  • Connect and Forget: With a low maintenance design, our universal vehicle charger and maintainer is compact, lightweight, and easy to operate even in small storage space for your convenience
  • Includes: One 10 Bank Multibank Charger Unit, ten separate alligator clips and a 6-foot AC power cord for simple and convenient use - 3 Year general limited warranty
  • Extend Battery Life: Compatible with all 12V or 6V lead-acid, flooded, AGM, gel cell batteries, and 12V (LiFeP04) Lithium batteries; complete 4-step charging program works the battery with overcharging or discharging.
  • Safety Features: This battery charger features reverse polarity protection, a 25-hour safety timer shutoff, and is designed for spark-proof operation
  • Stay Charged: Provides a full charge to your vehicles battery before switching to float mode to maintain proper voltage levels for safe, long-term storage without overcharging

Brand: Battery Tender


Color: Black/Green


Product Dimensions: 7"D x 19"W x 7.5"H


Item Weight: 13 Pounds


Output Voltage: 12 Volts


Manufacturer: ‎Battery Tender


Brand: ‎Battery Tender


Model: ‎Battery Tender 210134


Item Weight: ‎13 pounds


Product Dimensions: ‎22 x 15.4 x 10.2 inches


Country of Origin: ‎China


Item model number: ‎210134


Is Discontinued By Manufacturer: ‎Yes


Exterior: ‎Painted


Manufacturer Part Number: ‎210134


OEM Part Number: ‎021-0134


Amperage: ‎2 Amps


Voltage: ‎12 Volts


Date First Available: December 1, 2006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Apr 16

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
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  • 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

    • works great
Great charger. does switch between 6 and 12 volt per bank. expensive but worth it
Reviewed in the United States on May 1, 2023 by mark leiss
    • Completely Satisfied
Have only owned the product for a month, but am completely satisfied. Does everything I would have expected. I collect motorcycles and never remove the batteries. I'm too lazy to move a charger from bike to bike. I've plugged in most of the bikes plus a car that I seldom use in the winter and leave them on. No worries. Only negative I've found is the leads from the charger to the battery are only 6 feet long. If you require more, you need to purchase a 25 foot extension. 31 feet is much more than I need. Wish I could purchase leads of 10 to 15 feet long. ... show more
Reviewed in the United States on February 1, 2009 by AAB
    • It's great that I have 1 unit to maintain all of my batteries.
The fact that I only need 1 of these units to maintain all the batteries that don't get used in the winter is great.
Reviewed in the United States on December 15, 2023 by Brandon Latimer
    • $700 PILE OF JUNK
Bought two of these. Neither worked or functioned correctly. Turn it on and the lights all blink then go of. Hook up a battery and nothing. Push the select buttons, nothing. Don't waste your time or money.
Reviewed in the United States on February 2, 2025 by J. Weber
    • No More Battery Charging Prolems
This product delivers as advertsied and then more. We have many vehicles, and products that require their batteries to be charged. We needed a product that could be left on 24/7, not over heat nor damage / kill all types of batteries. Additonally we wanted to see status of charge. This unit fits the bill. Plug and play. Have had many other brands prior. this unit beats them all. "Five stars" ... show more
Reviewed in the United States on March 20, 2013 by Steven Nelson
    • Rock solid charger
Review Image by Amazon Customer Amazon Customer
Don’t normally post reviews but I’ve had this charger since Apr 2018 in NC... has not been turned off in over 2 years and has been charging back hoe, tractors, boats, gators, extra batteries with zero starting issues. We always had battery issues in the winter and this charger has been rock solid since we started using. ... show more
Reviewed in the United States on December 16, 2020 by Amazon Customer Amazon Customer
    • This is perfect for my garage.
I own 75 acres and have a lot of equipment with 12 volt batteries to maintain it. I have 8 or the 10 charging positions going most of the time, I absolutely think this is a must have in the winter too. I've had many batteries go bad because I don't remember to charge them every now and then during cold months. Now, I just keep them on the charger all winter ad haven't lost a single battery. I now have a charging station in my garage for 12 volt, 6 volt and 40 volt batteries. very convenient for me. This 12 volt charger is the center piece. The other chargers surround it. ... show more
Reviewed in the United States on February 12, 2014 by Gerry
    • Quality and versatility.
6V, 12V, flooded, AGM, even Lithium. This unit does it all!
Reviewed in the United States on July 10, 2022 by CMPinNE

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