2-Pack Replacement Worx Battery, 18V 3000mAh Li-ion, Rechargeable - Compact Battery with Higher Safety & Longer Runtime -Compatible with Worx WA3512 WA3512.1 WG151 WG151.5 WG540 Cordless Power Tools

What It Is

This is a 2-pack of 18V 3000mAh lithium-ion rechargeable batteries designed to replace or supplement the OEM Worx WA3512, WA3512.1, WG151, WG151.5, and WG540 batteries. It’s intended for use in Worx cordless lawn mowers, string trimmers, blowers, and other 18V power tools that accept the WA3512-style slide-on battery.

Fitment & Compatibility

• Check your tool’s voltage requirement: This battery is 18V; do not use with 20V, 40V, or 56V Worx tools.
• Physical fit: Measures approximately 4.5 x 3 x 2.5 inches per battery. Confirm your tool’s battery compartment matches these dimensions – it’s a slide-on design, not a post-style.
• Model compatibility: Works with Worx tools originally using WA3512, WA3512.1, WG151, WG151.5, or WG540 batteries. Common tools include WG150, WG151, WG152, WG540, WG541 trimmers, and select 18V mowers (e.g., WG779, WG781). Not compatible with WA3550, WA3551, or WA3571 batteries.
• OEM vs aftermarket: This is a third-party replacement, not official Worx. Performance and lifespan may vary from genuine Worx batteries.

Key Things to Know

• Installation: Zero difficulty – slide battery onto tool until it clicks. No tools or modifications needed.
• Runtime: 3000mAh capacity gives roughly 30–40% more runtime than the standard 2000mAh Worx battery under light to moderate load.
• Safety: Includes overcharge, over-discharge, and short-circuit protection. Avoid storing fully drained or fully charged for months.
• Common gotcha: Some users report slight fit tightness on older Worx tools; if it doesn’t slide on easily, do not force it – check for debris in the slot.

Should You Buy It

Buy this if you need spare batteries for multiple 18V Worx tools and want more runtime than the stock 2000mAh option, especially for mowers or trimmers where extra run time matters. Skip it if you prefer OEM parts for warranty reasons or if your tool uses a different battery platform (e.g., 20V or 40V).