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YONHAN Battery Charger 0-20A 12V/24V LiFePO4 Lead Acid Fully Automatic Battery Maintainer, Car Battery Trickle Charger Automotive w/Battery Repair, Winter Mode, for AGM, STD, Gel, Deep Cycle Batteries

42.33

Save 23%

YONHAN Battery Charger 0-20A 12V/24V LiFePO4 Lead Acid Fully Automatic Battery Maintainer, Car Battery Trickle Charger Automotive w/Battery Repair, Winter Mode, for AGM, STD, Gel, Deep Cycle Batteries

4.4

4K+ bought in past month

Highest ranking 49

13 comments

$42.33

Save 23%

· [20A Suitable for LiFePO4 Lead-acid Battery Charger] 12V 20 Amp, 24V 10Amp 7-stage quick battery charger, Designed to charge, maintain and repair all 12-volt and 24-volt lead-acid automotive, LiFePO4, marine and deep-cycle batteries including AGM, GEL, EFB, SLA,Flooded(WET), Calcium in cars, truck, SUVs, ATV, motorcycle, snowmobile, lawn mower, boat, tractor, forklift, golf cart, etc. which is much faster than 10A or 6A automatic chargers. · [Winter Holiday Battery Trickle Charger]The car battery trickle charger features winter and summer modes with smart control to adapt to temperature changes and adjust the charging rate, preventing battery drain. It offers multiple protections, including reverse protection, a cooling system, overcurrent protection, fireproof materials, overcharge, and short circuit protection. These ensure safe charging, making it perfect for maintaining batteries over winter or during holidays. · [High-efficiency Pulse Repair] Built-in advanced battery REPAIR mode to help recover old/idle batteries and extend battery life. If the battery cannot be charged, please use repair mode. The high-frequency and low-frequency pulse technology has good repair and activation effects, Automatically enters trickle/float charging mode after fully charged, keep maintaining your batteries during this winter and more, leave batteries for holiday months and still brand new when you back. pls Note: It can not repair a totally dead battery. · [Brighter Screen Visualized Charging] Extra large LCD screen not only clear to see under the sunlight but also displays the charging and battery status; charge voltage and current, inside temperature, charge percentage, summer mode, winter mode, etc. · [3-in-1 Quick Battery Charger, A Must Have Car Emergency Accessory] AC input: 100-240V 50/60Hz, input power with load: max 300W, applicable battery's voltage: 12V/24V, output current: max 20A/10A. This portable car battery charger has overcharge protection, over current protection, a built-in cooling fan, overheating protection, reverse polarity protection, short circuit protection, sparks-free contact, etc., ensuring a safe and efficient charging process while extending your vehicle's battery life. · [Overall Charging Protections] The charging cable contains heat-resistant and oxidation-resistant copper wire, which is not easy to break. It has protection circuits such as overcharge/overvoltage/overcurrent/short circuit, with functions such as overcurrent protection, short circuit protection, reverse connection protection, overheat protection, overvoltage protection and undervoltage protection, ensuring a safe and efficient charging process while extending the battery life of your vehicle.

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Reviews From
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Pete GonzalezReviewed in the United States on May 4, 2025

This battery charger is amazing and reasonably priced. I have two deep cycle batteries that apparently went dormant due to lack of use, in my own opinion. I charged both batteries with a regular battery charger for hours, battery charger would indicate batteries fully charged. I installed a battery in a dump trailer, and it failed to lift or extend hydraulic cylinder, pump would only work for a short period without raising the dump bed. I received this amazing battery charger and put the battery on repair for approximately 16hours or less, then proceeded to charge the battery. Battery is functioning normally and now using the dump trailer without a problem. I highly recommend this charger, saved me hundreds of dollars in replacement cost of batteries.

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Carrie ArgomanizReviewed in the United States on May 14, 2025

This product did not disappoint at all. It was an absolute life saver when my car battery unexpectedly died. Within just 15-20 minutes, it had my battery fully charged and ready to go. Super easy to use, compact, and incredibly effective. The cord is not super long, but that wasn't an issue since I planned on using an extension cord anyways! I highly recommend keeping on of these on hand - especially during the summer months or for emergencies. Totally worth it!

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Kindle CustomerReviewed in the United States on May 14, 2025

I purchased this charger for my first time purchase of a LiFePO4 battery. The description states to charge LiFePO4 battery. Being new to this type battery, I was unaware that there are lead acid. My new battery requires a 14.6 v charger, this charger is not a 14.6v charger so I had to return it. They may want to state this in the description to help out us novices. But this charger is fine with the right application.

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European Motor ServicesReviewed in the United States on May 24, 2025

Very light weight and cheap feeling. So far it works as intended but lacks some ability to change settings the way you would think you could. I'll see how long it holds up - but it was inexpensive at least.

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Stephen B.Reviewed in the United States on April 29, 2025

Well, this unit will charge your battery. It actually does much much more. Deposits buildup on the plates in your battery. This unit will clean those deposits off in a maximum of four hours. Then will test your battery and let you know its condition. This unit saved me from buying a new battery. if I left the car sit three or four days the battery will be dead and the car would not start.After cleaning the plates in it saved my battery and now I can let my car sit for several weeks and it still starts great. This unit has more than paid for itself in savings.

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Daniel Hernandez ArizaReviewed in the United States on May 26, 2025

Sorry, I got the product at the end, works fine and helped me with the battery of my motorcycle. It wa showing the item was delivered to another city but it was delivered to mine.

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Richard NobleReviewed in the United States on April 23, 2025

This unit did exactly what I expected. The battery was less than a year old and was totally drained from a vampire draw over the cold season to the point that it would not take a charge and showed a bad battery. I put it in the repair mode overnight and then put it on charge and the battery completely charged and worked just fine. I have since installed a battery keeper to avoid a reoccurrence of the same problem. The $50 unit was a good investment and much cheaper than purchasing a new battery. I highly recommend this unit.

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Edgar saenzReviewed in the United States on May 15, 2025

24 volt Led battery function works well, Single 12V battery LED acid, works with specified safe electrical specifications. LifePo4 not so much, this is dangerous as it used it in 24V mode and it charged it to 37 Volts, tried it again and it charged it to 31Volts. The 37V is way too high for these 600 volt batteries or any kind of battery and a safety concern, I am going to let the seller let me know why this is happening but as far as I know, the tolerance is violated for these kinds of batteries. abusing these big expensive batteries will shorten the life of the battery. Tried to get hired by Amazon as electrical engineer but I am always denied, I see the kind of products they should test thoroughly and qualify before someone blows up their home and this is what I get. when it matters. The spec says. The maximum charge specifications for LiFePO4 (LFP) batteries typically include: Nominal Voltage: 12.8V for 12V batteries and 25.6V for 24V batteries1. Maximum Charge Voltage: Generally around 14.6V for 12V batteries and 33.2V for 24V batteries1. Discharge Cut-off Voltage: Approximately 2.0V for both 12V and 24V batteries1. Charge Efficiency: LFP batteries can charge at nearly 100% efficiency, making them suitable for various applications. 31Volts is still but I witness 37V.

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TyboReviewed in Canada on April 12, 2025

Use it on a 12v 220Ah battery. Works like a charm. Highly recommend it.

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Lois MckinnonReviewed in Canada on March 15, 2025

I bought this as a gift for my friend. We live in a cold climate so sometimes you need a little extra boost in the winter. He loves it he thinks it's great and would purchase it again

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John DivitoReviewed in Canada on February 13, 2025

Works great

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BigOldBearReviewed in Canada on April 17, 2025

item worked perfectly...

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Daniel GervaisReviewed in Canada on May 5, 2025

Let's see how it ages but so far this is an awesome little charger for lifepo batts