Battery Tender 4 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0209-BT-WH
Battery Tender 4 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0209-BT-WH
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Battery Tender 4 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0209-BT-WH

Battery Tender 4 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0209-BT-WHBattery Tender 4 AMP Battery Charger Maintainer Automotive Switchable 12V 6V Smart Fully Automatic Cars SUVs Trucks Lead Acid Lithium Battery ChargerBattery Tender Junior 8V 1 25 AMP Car Battery Charger Maintainer Fully Automatic 8V Automotive Battery Charger Cars Motorcycles ATVs 022 0197Battery Tender 3 AMP Battery Charger Maintainer Automotive Switchable 12V 6V Smart Fully Automatic Cars SUVs Trucks Lead Acid Lithium Battery ChargerBattery Tender 5 AMP 12V Charger Maintainer Automotive Smart Fully Automatic Cars SUVs Trucks Lead Acid Lithium 022 0186G DL WHTender Power Plus 12 volt Booster With Wi fi
Size:6V/12V @ 4 AMP

Key item features

  • Automatic Charging: The 4 amp car battery charger provides a full charge before switching to float mode to maintain proper voltage levels without overcharging.
  • Low Maintenance: Compact, lightweight, and easy to operate, this charger is designed for convenience even in small storage spaces.
  • Included Accessories: Comes with a 4 AMP battery charger, ring terminal and alligator clip combo cable.
  • Power Monitoring: Features a solid state two-color LED light to indicate charging status and ISM adaptive charging to resume full power if battery voltage drops.
  • Safety Features: Spark-proof during lead connection and automatically detects reverse polarity to ensure a correct connection before providing power.
  • Battery Compatibility: Works with lithium (LiFeP04), lead-acid, flooded, or sealed maintenance-free batteries (AGM and gel cell) and is switchable between 6V and 12V.
  • Advanced Charging: Equipped with a 4-step automatic charge process (qualification, bulk charge, absorption, float) and microprocessor control.
  • Durable Design: Dimensions of 6.8 x 3.68 x 1.96 inches and a shipping weight of 3.15 lbs, making it robust and portable.
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Current price is $79.95
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  • Free 90-day returns
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Sold by Deltran
Fulfilled by Walmart
4.726851851851852 stars out of 5, based on 216 seller reviews(4.7)
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4.7 out of 5 stars
stars72 ratings39 reviews
How item rating is calculated
  1. 5 stars86% (62)
  2. 4 stars3% (2)
  3. 3 stars4% (3)
  4. 2 stars3% (2)
  5. 1 star4% (3)

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Showing 1-3 of 39 reviews

Nov 22, 2025
Matrix64
Top Reviewer
Item details
Size: 12V @ 5 AMP
Sold byDeltranDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Very highly recommended

I have been using this brand for decades. They are always reliable and anytime I've ever had an issue. They replaced it free of charge and told me to keep the one I had. This particular one I got because I drive a 7.3 L diesel, which uses two batteries so this particular one will charge my battery a little quicker than the 800 mA model. Walmart is the least expensive source that I have been able to find for the battery tender brand.

Incentivized Review
Helpful?1FFVNGPYF6SH654279224
Feb 6, 2026
Helen
Item details
Size: 11" x 4.75" x 9.5"
Sold byDeltranDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Battery Tender

I ordered the Battery Tender 3 amp. It is well worth the price. There are days that the car just sits there and this is the answer to a dead battery. It keeps it charge charged by trickling voltage to it. It helps if you have an electrical outlet in your garage. It was well packaged and shipped, and arrived on time. It certainly puts Walmart right up there with Amazon, especially with the free shipping.

Helpful?1FFVNGPYF6SH654279224
Dec 15, 2025
Katz
Item details
Size: 11" x 4.75" x 9.5"
Sold byDeltranDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Pretty Good Battery Tender

Very simple to use. Not complicated! Full power for charging quickly, and a "smart charger" for long-term maintenance. Important! Detailed instructions, which you should read first before using the battery tender.

Helpful?1FFVNGPYF6SH654279224