Bonadget Upgraded 6.5Ah Battery for Worx 20V WA3525 WA3575 WA3520 WA3578 WA3674 WA3669 WG323 WG261 Lawn Mower Weed Eater Trimmer Blower Lithium-ion

What It Is

This is a high-capacity 20V lithium-ion battery replacement designed for Worx cordless lawn tools—mowers, trimmers, blowers, and chainsaws. It offers 6.5Ah (compared to standard 2.0-4.0Ah packs) for longer run time on a single charge.

Fitment & Compatibility

• Works with Worx 20V Power Share platform – fits all tools that use WA3525, WA3575, WA3520, WA3578, WA3674, WA3669, and WG323/WG261 batteries.
• Check your tool’s voltage – this is a 20V battery; only use with 20V Worx tools (not 40V or 56V).
• Physical fit – dimensions are identical to OEM packs; slides into the same battery dock. No adapter needed.
• Aftermarket vs OEM – this is a third-party replacement, not made by Worx. It will not charge in Worx chargers that have proprietary chip detection (rare, but some newer chargers may reject it). Verify your charger is a standard 20V Worx charger.
• Measure your battery compartment – if you have a compact mower with a tight battery cavity, confirm the 6.5Ah pack’s slightly larger cell count doesn’t cause interference (unlikely, but measure height if unsure).

Key Things to Know

• Run time – 6.5Ah provides roughly 2–3x longer run time than a standard 2.0Ah pack. Expect 45–60 minutes of trimming or 30–40 minutes of mowing on a full charge.
• Installation – slide on until it clicks; no tools or wiring. Works with all current Worx 20V tools (mowers, trimmers, blowers, chainsaws, hedge trimmers).
• Gotcha – some users report the battery indicator lights are slightly less accurate than OEM. Charge fully before first use and don’t rely solely on indicator for remaining capacity.
• Charger compatibility – works with most Worx 20V chargers, but if your charger has a “smart” chip (rare), this battery may not charge. Test with your existing charger before relying on it.
• Warranty – aftermarket, so no Worx warranty. Bonadget offers a 30-day return policy; read it carefully.

Should You Buy It

If you own multiple Worx 20V tools and need longer run time without buying a second OEM battery, this is a solid budget option. It’s not for you if you require OEM reliability, warranty support, or have a newer Worx charger with chip detection. For light-to-medium use, the price-to-performance ratio is excellent.