40V 7.5Ah Battery Replacement for Dewalt 40V DCB404 DCB406 DCB407 DCB114 DCB116, Compatible with Dewalt 40 Volt Max Power Tools & Chargers DCST990H1 DCST990X1 DCST990H1 DCST990H1 DCST995B

What It Is

This is a 40V 7.5Ah lithium-ion battery replacement for Dewalt 40V Max power tools and outdoor equipment, including string trimmers, blowers, and hedge trimmers. It provides extended runtime for high-drain tasks like trimming large lawns or clearing heavy brush.

Fitment & Compatibility

• Models: Works with Dewalt 40V Max tools and chargers that accept DCB404, DCB406, DCB407, DCB114, or DCB116 batteries. Compatible with trimmers like DCST990H1, DCST990X1, and DCST995B.
• Check before buying: Ensure your tool uses a 40V slide-pack battery (not 20V or 60V). Measure the battery slot depth—this 7.5Ah pack is taller than standard 2.0Ah or 4.0Ah packs, so it may not fit under some mower decks or in tight tool compartments. Confirm your charger model (e.g., DCB101, DCB102) is compatible; all Dewalt 40V chargers work, but older chargers may charge slower.
• Aftermarket note: This is a third-party replacement, not OEM Dewalt. It uses the same slide-in interface but may have slight dimensional differences—test fit before fully assembling.

Key Things to Know

• Quality: Third-party cells (typically high-grade Chinese) may have slightly lower cycle life than OEM Dewalt (Samsung or LG cells). Expect 300-500 charges vs. 500-800 for OEM.
• Installation: No tools needed—slide battery into tool until it clicks. Ensure the latch engages fully; loose fit can cause intermittent power loss.
• Common gotchas: This battery may not communicate charge level to some tool LED indicators (e.g., trimmer fuel gauge may show incorrect level). Also, avoid fully draining it—recharge when power drops to prevent cell damage.
• Warranty: Usually 1-2 years from seller, but check return policy. OEM Dewalt has 3-year warranty.

Should You Buy It

Buy this if you need a budget-friendly spare battery for heavy yard work and don’t mind slightly shorter lifespan than OEM. Skip if you rely on accurate charge gauges or need guaranteed fit under a mower deck—measure first. For occasional use, it’s a solid value.