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Battery Tender

Battery Tender 4 Amp, 6V or 12V Selectable Battery Charger

Average Rating:out of 5 stars
Walmart # 577475051
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Arrives by Mon, Oct 5

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In stock at Mountain View, 600 Showers Dr

Sold & shipped byWalmart
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About This Item

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The fully automatic Battery Tender 4 Amp battery charger and maintainer is a top-of-the-line 12V or 6V switchable battery charger, perfect for cars, trucks, SUVs, and boats. Versatile and powerful, this battery charger is equipped with a simplified 4-Step Automatic charge process used with lead acid and lithium batteries. Qualification (making sure the battery is ready for charge), bulk charge (getting your battery to the right charge level), absorption (the final 20% of charge), and float (maintaining charge without overcharging your battery, perfect for storage). All Battery Tender® chargers automatically switch from full charge to float charge mode once the battery reaches optimum charge levels. Reverse hook-up protection makes connecting your charger safe and easy to do. LED light indicators make selecting your charge mode simple and straightforward.


WARNING: Cancer and Reproductive Harm -


Battery Tender
Manufacturer Part Number
Assembled Product Weight
3.15 lbs
Assembled Product Dimensions (L x W x H)
6.80 x 3.68 x 1.96 Inches

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Average Rating:(4.5)out of 5 stars
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1-5 of 33 reviews

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Average Rating:(5.0)out of 5 stars

Compact But Powerful

Vehicles today have more electronics, using more voltage from your battery even when your vehicle is not running. The Battery Tender is strong enough to offset the drain keeping your battery at peak performance. Automatically switch from a full charge to a float maintenance charge with a low maintenance design that's quick and easy to use. The cords are 12 foot total reach, and the clamps work well. The product comes with a 7.5 AMP fuse. Great for keeping the battery up to full charge on recreational part-time use vehicles. Excellent product.

Spark proof

Reverse polarity protect

Manufacturer's warranty

Output: 12-Volts @ 4-Amps

Input: 120VAC @ 50/60Hz

Average Rating:(5.0)out of 5 stars

Good for car battery maintenance

This battery charger/maintainer comes in a compact carrying box and is lightweight. It doesn't take up too much space so I can just leave it in the trunk for emergencies. It comes with a manual in different languages and is easy to use. Nice accessory to have especially if your car is getting old!

Average Rating:(5.0)out of 5 stars

great charger!

I have nothing but good things to say about this battery charger! First of all, it is high quality and it is super durable too! It doesn't break if it's dropped. It is tough, which is what you need when you are working on charging a car/truck! You can also charge boats with it. It is very versatile.

Getting the charger hooked up and working is super simple too. You get instructions with the product, so you don't have to guess what goes where. I personally need instructions for these types of products, and these were easy to read and figure out.

You also get the option of using either 6V or 12V of power too. So, it's perfect for pretty much any vehicle! Also, it is a 4 step automatic charge process, and it knows when you have reached the perfect amount of power! Once the charge is done, the tender will go from full charge to a float mode. This means that it will not overcharge your battery! There are LED lights on the charger too, so you know what mode it is in. It also doesn't take forever to charge which is really nice!

All in all, this is a great product and I highly recommend it! It is so useful for charging your vehicle. Just store it in your car/truck and when you need it, it is there! It's a super handy product to have. Give it a shot, you won't regret it!

Average Rating:(5.0)out of 5 stars


Need to charge an automobile. boat, four wheeler, motorcycle, go cart or ski do this little guy does it all. 12 volt to 6 volt, spark proof, reverse hook up, switches from full charge to float charging mode. This has a 12 foot reach and lightweight at 1.40 lbs. This is not a fast charge its more of a trickle charge. I can appreciate the fact it has a 7 year warranty and its 100% authentic smart power. Battery Tender is the most reliable and trusted charger since 1965!

Average Rating:(4.0)out of 5 stars

Great charger for my situation

The Battery Tender 4 amp battery charger does a great job at maintaining and charge the 6volt and 12 volt batteries I use for my wild game feeders, and children's electric ride on cars. I've also used it to charge up an old battery for my old work truck that day for nearly a year and it worked as expected. The ability to swap between 6v and 12v and the type of battery makes it even more handy around my house and shop. It comes with gator clips and eyes terminal connectors for a wide range of options and battery connections.


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Product warranty:
Warranty Information:1-90 days after purchase: Contact Deltran Returns- or 877-456-7901 for RGA and prepaid return shipping label.
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