2Pack DSANKE WA3520 20V 6.0Ah Replacement for Worx 20V Battery WA3520 WA3525 WG151s WG155s WG251s WG255s, WG540s, WG545s, WG890, WG891 Worx 20Volt Lithium ion Cordless Power Tools

What It Is

This is a two-pack of 20V 6.0Ah lithium-ion replacement batteries designed for Worx cordless lawn mowers and other 20V Worx power tools. It’s meant to extend runtime for mowing, trimming, or using yard tools that rely on the Worx 20V platform.

Fitment & Compatibility

Before buying, verify your Worx tool or mower uses the WA3520 or WA3525 battery model. This aftermarket pack is compatible with Worx mowers like WG151s, WG155s, WG251s, WG255s, WG540s, WG545s, WG890, and WG891, plus any 20V Worx tool that accepts those batteries. Not compatible with older 18V or 24V Worx systems. Check the battery slot shape and terminal layout—Worx 20V packs have a distinct slide-in design. If your mower or tool uses a different battery model (e.g., WA3550 or WA3575), this won’t work.

Key Things to Know

• Aftermarket quality varies. This is a third-party replacement, not OEM Worx. Some users report shorter lifespan or slightly less runtime compared to genuine Worx batteries, though the 6.0Ah capacity is higher than many stock packs.
• No installation required. Batteries slide directly into the tool’s battery compartment; no tools or modifications needed. Charge them fully before first use.
• Check charger compatibility. This pack works with standard Worx 20V chargers (e.g., WA3740, WA3741). If you have an older or third-party charger, test fit before relying on it.
• Weight and balance. At 6.0Ah, these are heavier than lower-capacity packs. On a walk-behind mower, this adds noticeable weight—fine for most users, but may feel unbalanced on lighter tools like trimmers.

Should You Buy It

This is a solid budget-friendly option if you need extra runtime for multiple Worx 20V tools or mowers and don’t want to pay OEM prices. It’s best for light to moderate use—if you mow a large lawn daily or need maximum reliability, stick with genuine Worx batteries. For occasional trimming, edging, or small-to-medium lawns, this two-pack offers good value.