CRAFTSMAN 1.5A Battery Charger & Maintainer 6V/12V CMXCESM259 — Smart Microprocessor Desulfation

CRAFTSMAN CMXCESM259 is a fully automatic 1.5A 6V/12V battery charger, maintainer, and reconditioning unit designed to keep automotive, powersport, and marine batteries healthy without overcharging.

The CMXCESM259 combines microprocessor-controlled charging, trickle maintenance, and desulfation reconditioning into one compact, wall-mountable unit. It automatically detects 6V or 12V batteries and manages multistage charging for a variety of battery chemistries—standard lead-acid, AGM, gel, and deep-cycle—making it a versatile tool for garages, workshops, and seasonal battery storage.

How does this charger keep batteries topped up without damaging them?

The CMXCESM259 uses smart trickle charging and float-mode monitoring to maintain battery voltage once full, avoiding the heat and wear that come from overcharging. A microprocessor runs the charging profile and switches to maintenance automatically.

• 1.5-amp charge rate for gradual, safe replenishment
• Multistage charging adjusts current as battery condition changes
• Float/maintenance mode prevents overcharge during long storage
• Microprocessor control for consistent voltage regulation

Can it restore old or sulfated batteries?

This model includes a desulfation (reconditioning) mode designed to break down sulfate buildup that reduces battery capacity. While not a guaranteed fix for all failed batteries, reconditioning can extend service life and improve performance when sulfate buildup is the primary issue.

• Dedicated reconditioning/desulfation cycle for recovering capacity
• Safe for most 6V and 12V lead-acid battery types
• Automatic monitoring to stop reconditioning if unsafe conditions appear

What vehicles and battery types will this unit work with?

The CMXCESM259 is compatible with both gas and diesel vehicles and supports common battery formats used across powersports and marine applications. It works with car, motorcycle, ATV, truck, SUV, and marine batteries rated at 6V or 12V, including standard, AGM, gel, and deep-cycle designs.

• 6V and 12V battery support for wide vehicle range
• Works with standard, AGM, gel, and deep-cycle batteries
• Suitable for automotive, powersport, and marine applications

How safe and convenient is the CMXCESM259 to use in a home garage?

Safety features and thoughtful design make this charger suitable for hobbyists and pros. Reverse polarity protection prevents damage from incorrect clamp connections, and the included quick-connect clamps and ring terminals speed installation. The unit is AC powered with a 6-foot cord and 5-foot booster cables, and it mounts to a wall to keep the workspace tidy.

• Reverse polarity protection guards against clamp errors
• Includes quick-connect clamps and ring connectors for fast setup
• Wall-mountable housing keeps the charger out of the work area
• 6-foot power cord and 5-foot battery cables for flexible placement

Who is this for? The CRAFTSMAN CMXCESM259 fits anyone who stores or maintains vehicles and equipment with 6V or 12V lead-acid batteries—home mechanics, seasonal vehicle owners, marine hobbyists, and small workshop professionals. It’s especially useful for those who want a compact, always-ready charger that handles daily charging, long-term maintenance, and occasional battery reconditioning without constant supervision. While it supports many battery types and repair scenarios, it’s not a replacement for professional battery diagnostic or repair service when cells are internally damaged or permanently failed.