CRAFTSMAN CMXCESM258 12A Car Battery Charger & Maintainer – 4-in-1

All-in-one battery power for your garage

Meet the CRAFTSMAN CMXCESM258, a robust 4-in-1 battery charger and maintainer that handles 6V and 12V batteries across cars, motorcycles, ATVs, boats, and more. It blends speed with safety, helping you revive a dead battery or keep one ready for action without guesswork. The unit’s compact footprint fits neatly on a workbench, while a clear digital readout keeps you in the loop on charging status and battery health.

With up to 12 amps of fast charging for 12V batteries and a deliberate maintenance cadence for long-term upkeep, this charger adapts to the task at hand. It also supports a dedicated 6V charging/maintaining mode for smaller systems, ensuring the right amount of power for the job. The design emphasizes efficiency and straightforward operation, so you can tackle a range of projects in a single session.

Smart, safe, and flexible

Automatic microprocessor control detects the connected battery’s voltage and automatically adjusts output. A built-in desulfation mode offers a potential boost to older batteries, while a battery tester provides quick health insights before you start a recharge. Reverse polarity protection adds a layer of safety, helping protect your battery and vehicle electronics if clamps are misconnected.

Designed for your workspace

A 6-foot AC power cord and 6-foot booster cables give you a comfortable 12-foot reach, making it easier to work from a convenient spot in the garage or driveway. The unit’s intuitive controls and LED indicators simplify setup, and the compact build helps keep your workspace organized as you move between jobs.

Versatile battery support

The CMXCESM258 is built to work with a broad range of battery chemistries, including standard lead-acid, AGM, LiFePO4 (lithium), and deep-cycle batteries. Whether you’re maintaining a seasonal vehicle or reviving a marine battery after storage, this device aims to handle the task with confidence and care.

Practical use cases

• Quickly restore power to cars, motorcycles, ATVs, trucks, SUVs, and boats.
• Keep seasonal or backup batteries healthy during long storage periods with smart trickle maintenance.
• Run simple battery health checks with the built-in tester before a planned trip.
• Use desulfation to pursue improved performance from aging batteries, where applicable.

What’s included and warranty

Includes the CMXCESM258 battery charger and maintainer plus a user manual. Backed by a two-year limited warranty for added peace of mind.