40V 5.0Ah Replacement for Dewalt 40V Battery DCB404 DCB406 DCB407 DCB114 DCB116 DCB412, Compatible with Dewalt 40V MAX Power Tools DCCS690B DCCS690X1 DCCS690H1 DCCS690M1 DCHT860B DCHT860X1 DCHT860M1

What It Is

This is a 40V 5.0Ah lithium-ion replacement battery designed for Dewalt 40V MAX power tools, including string trimmers, hedge trimmers, chainsaws, and blowers. It powers high-drain outdoor equipment for longer run times than standard 2.0Ah or 3.0Ah packs.

Fitment & Compatibility

• OEM vs. Aftermarket: This is a third-party replacement, not genuine Dewalt. It fits all Dewalt 40V MAX tools and chargers, but may not charge on Dewalt’s newer “FlexVolt” or “PowerStack” chargers. Check your charger model.
• Tool Compatibility: Confirmed for models DCCS690B, DCCS690X1, DCCS690H1, DCCS690M1 (chainsaws), DCHT860B, DCHT860X1, DCHT860M1 (hedge trimmers), and other 40V MAX tools. Not compatible with Dewalt 20V or FlexVolt 60V systems.
• Physical Size: 5.0Ah packs are taller and heavier than 2.0Ah/3.0Ah packs. Measure your tool’s battery compartment depth: this pack is roughly 6.5 x 4 x 3.5 inches. Ensure it doesn’t obstruct handles or guards.
• Charger Check: Use a Dewalt 40V charger (model DCB101, DCB102, DCB104, or DCB107). Do not use 20V-only chargers.

Key Things to Know

• Quality & Safety: Third-party batteries may lack overcharge/over-discharge protection circuits found in genuine Dewalt packs. Check for UL or CE certification marks; if absent, risk of overheating or swelling is higher.
• Run Time: 5.0Ah provides ~40–50% more runtime than a 3.0Ah pack on a trimmer or chainsaw. Expect 30–45 minutes of heavy use on a DCCS690B chainsaw.
• Installation: No tools needed—slide the pack onto the tool’s battery base until it clicks. If it doesn’t lock securely, the latch may be misaligned; return immediately.
• Common Gotcha: Some users report the battery indicator lights (if present) are inaccurate or dim. Test charge level with a known Dewalt charger before relying on it for a full job.

Should You Buy It

Buy this if you need a spare 40V battery for heavy trimming or cutting tasks on a tight budget and already own a Dewalt 40V charger. Skip it if you demand genuine OEM safety certifications, need full compatibility with newer Dewalt chargers, or want a warranty longer than 30 days—this aftermarket pack typically offers limited coverage.