Rated 4.9 | (9,273) Reviews

12V Smart Battery Charger & Maintainer

Name: 12V Smart Battery Charger & Maintainer
Brand: JoyBox
Price: 44.99 USD
Availability: InStock

Charge, maintain and help recover tired 12V batteries at home, with a big display that shows you everything.

🔋 Pulse repair mode built in

📊 Live voltage, current, charge level

⏹️ Stops automatically when full

96% claimed Ends in 05:29:00

12V Smart Battery Charger & Maintainer

$44.99

$44.99 ~~$100.00~~

SAVE 55% Sold out

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Why should I get this?

A dead battery doesn't always mean a new battery. The pulse repair mode can help recover tired 12V batteries that a regular charger won't take, and buyers say it brought back batteries that had sat for years. It won't save every battery, but it's worth a try first.

You never have to guess. The large display shows charge level, voltage, current and temperature while it works, and the charger stops on its own and shows "FUL" when the battery is full.

One charger covers the car, the motorcycle, the minivan and the truck: 12V lead-acid batteries from 4Ah to 100Ah, with STD, AGM/GEL, Motorcycle, TKL and Repair modes. Note: 12V batteries only; not for lithium batteries.

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Fast, Reliable & Secure Delivery

We offer tracked shipping on all orders.

All orders are processed and shipped by our super careful fulfillment team within 24 business hours.

We are currently experiencing high volume of orders so delivery time, depending on your location, range from 6-10 days.

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30 Day Risk Free Guarantee

Not fully satisfied? We offer a 30 day money back guarantee. No questions asked.

Simply contact us at support@boxofjoy.shop or our contact form and we'll make it right.

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Don't Replace Your Battery Before You Try This

Pulse Repair Can Help Bring Tired Batteries Back

A battery that won't charge isn't always finished. Press MODE five times to switch on pulse repair, and the charger works on the battery for a few hours before charging it up. Buyers say it brought back batteries a regular charger couldn't, including one that sat dead for years. It won't save every battery, but it's worth trying before you buy a new one.

Suggested repair time is about 4 hours for a car battery and about 2 hours for a motorcycle battery. The repair mode also charges, and when it's done the screen shows a full bar and "FUL".

One Charger for Your Car, Motorcycle and Truck

It works with 12V lead-acid batteries from 4Ah to 100Ah, with five modes on the display: STD, AGM/GEL, Motorcycle, TKL and Repair, plus winter and summer settings. It also maintains a battery that sits, so it's ready when you are.

The result: fewer dead-battery mornings, a clear readout of what's going on, and a simple tool that lives in the garage for whenever a battery needs a boost.

Our customers tell it better than we do!

Excellent

4.7

/ 5

based on 9,273 reviews

Fixed My Truck Battery

Yes and fixed my truck battery that wouldn’t take a charge Yes and fixed my truck battery that wouldn’t take a charge Yes and fixed my truck battery that wouldn’t take a charge

Verified Buyer

Started After Two Years

Husband loved it so much we bought another one! Have a car that hasn't been driven in over 2 yrs and the car started right up after this little cool gadget! Very affordable and delivered in 4 days. Husband loved it so much we bought another one! Have a car that hasn't been driven in over 2 yrs... Husband loved it so much we bought another one! Have a car that hasn't been driven in over 2 yrs and the car started right up after this little cool gadget! Very affordable and delivered in 4 days.

Verified Buyer

Revived Two Old Batteries

I was surprised I have two old batteries that I couldn’t charge with a regular charger,I connected the smart charger to those batteries in repair mode and now they’re working fine.Thank you! I was surprised I have two old batteries that I couldn’t charge with a regular charger,I connected the smart charger... I was surprised I have two old batteries that I couldn’t charge with a regular charger,I connected the smart charger to those batteries in repair mode and now they’re working fine.Thank you!

Verified Buyer

7-Year-Old Battery Restored

Got this yesterday and put a 7 year old dead battery on it to restore and charge. This morning I installed the battery and it worked perfectly. Great buy. Easy to use and highly recommended!! Got this yesterday and put a 7 year old dead battery on it to restore and charge. This morning I... Got this yesterday and put a 7 year old dead battery on it to restore and charge. This morning I installed the battery and it worked perfectly. Great buy. Easy to use and highly recommended!!

Verified Buyer

Saved Me Over $300

Excellent, thank you so much for this product. I don't usually promote what I buy, but this is impressive. Thank you, it saved me more than $300. Excellent, thank you so much for this product. I don't usually promote what I buy, but this is impressive. Thank... Excellent, thank you so much for this product. I don't usually promote what I buy, but this is impressive. Thank you, it saved me more than $300.

Verified Buyer

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12V Smart Battery Charger & Maintainer