Replacement for Worx Battery 20V 6.0Ah - High Capacity Lithium-Ion Battery Pack Compatible with Worx 20V Series Tools

What It Is

This is a high-capacity 20V 6.0Ah lithium-ion battery replacement for Worx 20V series tools, including lawn mowers, trimmers, blowers, and chainsaws. It’s designed to provide longer runtime than standard 2.0Ah or 4.0Ah packs, making it ideal for larger yards or extended jobs.

Fitment & Compatibility

• Check model number: This battery fits all Worx 20V tools (e.g., WG303, WG184, WG901, WG509, WG545), but confirm your tool’s voltage is 20V—not 40V or 56V.
• Measure battery slot: Dimensions are roughly 5.7 x 3.5 x 2.8 inches. Measure your tool’s battery compartment to ensure it fits, especially in tight mower housings.
• Charger compatibility: Works with Worx 20V chargers (model WA3742, WA3880, etc.). Do not use with 40V or 56V chargers.
• Aftermarket note: This is a third-party replacement, not OEM. It may have slight cosmetic or label differences, but electrical specs match original Worx packs.

Key Things to Know

• Runtime vs. weight: 6.0Ah offers ~50% more runtime than 4.0Ah, but adds ~0.5 lb. Heavier packs can make handheld tools feel less balanced.
• Installation: No tools needed—slides directly into battery port. Ensure it clicks firmly; loose fit may cause power loss.
• Self-discharge: Lithium-ion holds charge for months, but store at 40-60% charge in cool, dry place to extend lifespan.
• Common gotcha: Some users report slightly shorter lifespan (200-300 cycles) vs. OEM (300-500). Avoid full drains to maximize longevity.

Should You Buy It

Yes, if you need more runtime for large lawns or frequent use on Worx 20V tools and don’t mind a third-party price break. Skip it if you prefer OEM warranty support or have older Worx models with tight battery bays—measure first. For occasional trimming, a 4.0Ah may be lighter and cheaper.