Does this charger have a repair mode?

Yes, our chargers have a one-click repair mode, which is only applicable to 12V batteries, not 24V, and it gradually recovers the sulfurized plates by charging at low current for a long period of time to restore the performance of the battery.

What are the output voltage and full charge voltage of the charger?

Output voltage 12V- Full charge voltage 14.4V,Output voltage 24V - Full charge voltage 28.8v.

What to do if the battery is often not fully charged?

ls the battery aging or damaged, causing excessive discharge and insufficient charging? You can try the one click repair mode to repair the battery for free.

Is it a jump starter?

No, it is a battery charger and maintainer, not a jump starter.

Can it charge a 0V battery?

Yes, you can start charging if you use the repair mode when the battery voltage is 0V.pls Note: It can not repair a totally dead battery.

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Description

20A Car Battery Charger: The 12V/20A and 24V/10A fast car battery chargers charge much faster than 10A car chargers. Multi-stage charging processes with quick and trickle charging protect your batteries
Intelligent Digital LED Display: The LED screen displays the values of ambient temperature, voltage, current and remaining battery capacity. You can easily check the battery status
Safety: This 20A car battery charger has multiple protection functions such as short circuit protection, overcurrent protection, cooling system and reverse polarity protection. The repair function activates batteries that have not been used for a long time, old batteries and batteries that cannot be charged
0V start: When the battery is exhausted due to long-term use, repair mode can be used to repair the battery, and charging can be started when the voltage is low
The car battery charger is suitable for 12V/24V 2Ah-150Ah lead acid batteries (AGM, GEL, SLA, VRLA). Suitable for most types of batteries, calcium batteries, gel AGM batteries, wet batteries and lead-acid batteries, 12V LiFePO4 batteries
Note: The battery charger will automatically turn off when fully charged. It starts charging when the battery is below a voltage level
The screen shows that 20A is the maximum current mode. Since this charger is a smart charger, it is normal for the charging current to fluctuate according to different charging stages and battery power. This is to better maintain the battery life. For example, each time you start charging for 15 minutes, the current is only 2.5A, or the battery is more than 80% charged, the current will gradually decrease

Keep your vehicles and equipment powered with the LVYUAN Smart Battery Charger and Maintainer. This advanced 12V/24V unit delivers efficient 10A/20A charging, significantly reducing downtime for your car, truck, or motorcycle. Its intelligent multi-stage charging process quickly revives batteries while the precision trickle charge safely maintains them for long-term health. The clear digital LED display provides real-time data on voltage, current, and temperature for complete control. Engineered with comprehensive safety protections and a unique 0V start repair mode, it can even recover deeply discharged or aging batteries. As a versatile all-in-one solution, it's fully compatible with both traditional lead-acid (AGM, GEL, SLA) and modern 12V LiFePO4 lithium batteries. Review: I ordered this battery charger to use in my home shop. The first one I received was dead on arrival. Thankfully, I was able to exchange the faulty unit and received a replacement that has worked great. I've used this charger on my John Deere 4020 as well as lawn mower batteries with great success. I LOVE the recondition feature and have experienced success in revitalizing old/worn batteries. Works perfectly for my needs - five stars! Review: Love this product, works as described

Reviews

M**V

I ordered this battery charger to use in my home shop. The first one I received was dead on arrival. Thankfully, I was able to exchange the faulty unit and received a replacement that has worked great. I've used this charger on my John Deere 4020 as well as lawn mower batteries with great success. I LOVE the recondition feature and have experienced success in revitalizing old/worn batteries. Works perfectly for my needs - five stars!

14.03.2025

P**M

Love this product, works as described

20.04.2025

E**N

I bougth this charger I really like it .

27.08.2025

G**.

Every thing I can find for LiFePO4 charging says 14.6 volts max, this charger says it's charging at 14.8

18.04.2025

H**E

Over charges battery, does not do as it promise, 😒 damage my batteries

12.05.2025

ASIN	B0DP88PXWQ
Item model number	20A-PRO black
Manufacturer	Guangzhou LVYUAN Technology Co., Ltd.
Product Dimensions	17.48 x 19.99 x 11.43 cm; 1.7 kg

LVYUAN 12V/24V Car Battery Charger with Trickle Charger Automotive Smart Battery Charger, Smart Battery Maintainer, 10A/20A for Car Truck Motorcycle LiFePO4 Lithium and Lead Acid Batteries

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