Joiry 4000mAh Li-ion Replace for Worx PowerShare 20V Battery Compatible with Worx WA3520 WA3525 WA3575 WG151s WG251s WG540s WG890 with Higher Safety and Longer Runtime Cordless Power Tools Batteries

What It Is

This is a 4000mAh lithium-ion replacement battery for Worx PowerShare 20V cordless tools, designed to power lawn mowers, trimmers, blowers, and other compatible Worx equipment. It offers higher capacity than standard Worx batteries for extended runtime.

Fitment & Compatibility

• Compatible models: Works with Worx WA3520, WA3525, WA3575, WG151s, WG251s, WG540s, WG890, and all PowerShare 20V tools.
• Check before buying: Ensure your tool uses the Worx PowerShare 20V platform (not 40V or other voltages). The battery has a slide-on mount with three terminals—visually confirm your tool’s battery slot matches. Aftermarket, not OEM, so it may not fit tightly in older or worn battery compartments.
• Measurements: Approx. 5.1 x 3.1 x 2.6 inches; weight ~0.6 lbs. Verify clearance in your tool’s battery compartment.

Key Things to Know

• Higher capacity: 4000mAh vs. standard 2000mAh Worx batteries—expect longer runtimes, but charge time may increase.
• Safety features: Claims overcharge, over-discharge, short circuit, and temperature protection, but aftermarket batteries lack OEM certification—use with caution.
• Installation: No tools needed; simply slide onto the tool until it clicks. If it feels loose, check for debris or worn battery rails.
• Common gotcha: Not all Worx 20V tools charge this battery with the original charger—test with your WA3740 or WA3880 charger first. If it doesn’t charge, use the included charger (if any) or a compatible third-party unit.

Should You Buy It

If you own multiple Worx PowerShare 20V tools and want a budget-friendly spare with longer runtime, this is a solid option. However, given only 3 reviews and no OEM warranty, it’s best for light-duty use or backup purposes—not for heavy commercial work where reliability is critical.