Upgraded 7000mAh 2Pack 20V Battery Compatible for Worx Battery 20V PowerShare WA3674 WA3678 WA3669 WA3575 WA3525 WA3520 WA3577 WA3578 WG151s WG155s WG251s

What It Is

This is a 2-pack of aftermarket 7000mAh 20V lithium-ion batteries designed to replace Worx’s PowerShare series batteries. They provide extended runtime for any Worx tool or mower that uses the 20V PowerShare platform, including string trimmers, blowers, and lawn mowers.

Fitment & Compatibility

Check your tool’s battery port: these fit all Worx 20V PowerShare models that accept slide-on batteries. Compatible OEM part numbers include WA3674, WA3678, WA3669, WA3575, WA3525, WA3520, WA3577, WA3578, and WG151s, WG155s, WG251s. They will not work with Worx 40V or 56V tools, nor with any non-PowerShare 20V models (e.g., older WA3550). Measure the battery slot: these are slightly thicker than some OEM packs—verify clearance if your tool has a tight battery compartment. They are aftermarket, not Worx-branded, so warranty coverage on your tool may be affected if a battery issue damages it.

Key Things to Know

• Capacity: 7000mAh is roughly 40% more runtime than the standard 5000mAh Worx battery—good for larger yards or heavy trimming.
• Installation: No tools needed; slide into the battery port until it clicks. If it doesn’t seat fully, check for debris or a snug fit.
• Quality concerns: Aftermarket cells may have shorter lifespan than OEM. Some users report inconsistent charge level indicators or slight overheating during fast charging.
• Charger compatibility: Works with any Worx 20V PowerShare charger (e.g., WA3740, WA3760). Do not use with non-Worx chargers.

Should You Buy It

Buy these if you need extra runtime for multiple Worx 20V tools and are comfortable with aftermarket batteries for the price savings. Skip them if you prioritize long-term reliability, OEM warranty protection, or have a tight battery compartment—stick with genuine Worx packs instead.