The Latest Intelligent CPU Control: Portable battery charger/maintainer automatically adjusts the charge current and maintainability according to the temperature. Automatic detection of ambient temperature, so that winter can be full speed, summer is not overload.optimized for any climate, easy to deal with a variety of harsh voltage environments. Wide Applications:Suitable for both 12V and 24V batteries, making it easier to use.It works with Calcium, AGM, EFB, MF, FLOODED, VRLA, SLA and Wet batteries, meaning that it can be used for the batteries in Car, Truck, Motorcycle, RV, SUV, ATV, golf cart, tricycles, agricultural vehicles, bus, etc. NOTE: Lithium Lead Acid Battery General Purpose . 6 Charging Modes: 6 Charging Modes: Car/Truck mode (12V20A 24V10A) for fast charging large battery, Motorcycle mode (max 1.5A) for a small battery, AGM mode and Calcium battery, Repair mode. Pulse Repair Function:Intelligent control system, strong pulse repair technology, remove vulcanization, repair slightly damaged batteries, reduce water loss, Provides stronger engine starts and extended battery life. â¤NOTE: It can not activate a dead battery or repair a battery which is damaged seriously; it also can not repair a battery back to 100% new. Multiple Protection and Safety of Use: This Automatic Smart Battery Charger owns safety technology including built in circuit protection, spark free system, reverse polarity protection, over-charge, over-voltage and over-temperature protection, stable performance for longer life. Fully Automatic Charger with Lcd Screen Display: Battery chargers Just plug and leave it for charging and maintaining your batteries automatically for long time, with intelligent digital LCD displays charging status and battery status, charge voltage, charge current, inside temperature, summer mode, winter mode, etc. Switchmode technology: Yes Polarity protection: Yes Output short protection: Yes Non battery link protection: Yes Over voltage protection: Yes Over temperature protection: Yes Cooling: Fan Input voltage: 100-240V AC, 50-60Hz Rated output: 12V20A 24V10A Minimum start voltage: 2.0V Battery range: 6-150Ah Thermal protect: 65'C+/-5'C Efficiency: App. 85%. Compliant standards: CB,CE, IEC60335, EN61000, EN55014 Weight: 1280g

Highlights at a glance

  • Strong ratings relative to similar items in the same category.
  • Specs and features that match how most shoppers actually use it.
  • Configuration options that fit common household setups.

Customer ratings on Walmart

On Walmart.com, this item shows an average customer rating of 5.0 out of 5 based on 2 customer ratings as of October 9, 2026. Ratings are provided by Walmart and may change on the retailer site.

Strong points

  • Useful for households upgrading from an older model.
  • Helpful owner community and searchable troubleshooting tips.
  • Competitive pricing during seasonal sales and bundle events.

Who benefits most

Shoppers comparing home & kitchen options who want a fact-based overview before visiting Walmart.com.

Trade-offs to know

  • Verify compatibility with devices or rooms you already own.
  • Compare similar models if you need premium features.
  • Color and finish options may ship on different timelines.

Current pricing on Walmart

Walmart listed this item at approximately $41.39 as of October 9, 2026. Prices and promotions change frequently. If the price shown here differs from Walmart.com, the price on Walmart.com governs.

Our verdict

Based on Walmart product data and customer ratings at the time noted above, 20A Battery Charger 12V 24V LiFePO4 Lead Acid Fully Automatic Battery Maintainer Car Battery Trickle Charger Automotive W Battery Repair Winter Mode is worth a closer look. Use the paid Walmart Partner link below for the current price and availability on Walmart.com.