DEWALT FLEXVOLT 20V/60V MAX* Battery, 12.0-Ah (DCB612)

What It Is

The DEWALT DCB612 is a 12.0-Ah lithium-ion battery compatible with both 20V MAX* and 60V MAX* FLEXVOLT tools, including DEWALT’s cordless lawn mowers, trimmers, blowers, and chainsaws. It’s designed for high-drain outdoor equipment, delivering extended runtime for larger yards or heavy-duty tasks.

Fitment & Compatibility

• Tool compatibility: Fits all DEWALT 20V MAX* and 60V MAX* FLEXVOLT tools (no adapter needed). The battery automatically switches voltage based on the tool.
• Charger compatibility: Works with all DEWALT 20V/60V chargers (e.g., DCB115, DCB107, DCB104). It will charge slower on standard 20V chargers; use a 60V FLEXVOLT charger for faster charging.
• Mower-specific check: Ensure your DEWALT mower model (e.g., DCMW220, DCMW240) accepts two batteries in series or parallel. The DCB612 is physically larger than 6.0-Ah or 9.0-Ah packs—measure the battery compartment to confirm clearance.
• OEM vs aftermarket: This is an OEM DEWALT battery. Third-party “compatible” batteries are cheaper but often have lower capacity, shorter lifespan, and may void tool warranties. Stick with OEM for reliability.
• Not compatible with: Older DEWALT 18V NiCd or 36V tools, or any non-DEWALT brand equipment.

Key Things to Know

• Runtime: Provides roughly 2x the runtime of a 6.0-Ah battery in a 20V mower. In a 60V trimmer, expect 45–60 minutes of continuous use.
• Weight: At ~2.3 lbs, it’s noticeably heavier than smaller Ah packs. This can make handheld tools feel unbalanced—test before buying if you’re sensitive to weight.
• Installation: No tools required—slides directly onto the tool or charger. The battery has a built-in fuel gauge (4 LEDs) to check charge level.
• Storage: Store at 50% charge in a cool, dry place. The battery is compatible with DEWALT’s cold-weather performance, but avoid leaving it in direct sun or below 14°F for extended periods.

Should You Buy It

Buy this if you have a DEWALT 20V/60V mower, trimmer, or blower and need maximum runtime for large yards (over 1/2 acre) or heavy-duty clearing. It’s overkill for small lawns or occasional light trimming—a 6.0-Ah or 9.0-Ah battery will save weight and money. For pro users or anyone tired of swapping batteries mid-job, the DCB612 is a solid investment.