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Two black rectangular lithium-ion batteries with orange brand labels side by side

THISS

THISS 2Pack 20V 3.0Ah Li-Ion Battery for Worx WA3520

SKU CH-13ZA-CVFVE

Two 20 V 3.0 Ah lithium-ion batteries compatible with Worx 20 V tools including models WG151, WG155, WG251, WG540 and WG890

  • Battery typeLithium Ion
  • Product typeBatteries
  • Two-pack keeps a spare ready for continuous work
  • 0 Ah lithium-ion cells deliver extended runtime per charge
  • 20 V output matches Worx Power Share platform requirements
  • CE certified and manufacturer tested to meet OEM specifications
  • Compatible with WG151, WG155, WG166, WG251, WG540, WG890 and more

Compatible Worx 20V Tools

This twin pack supplies two 20 V 3.0 Ah lithium-ion batteries for Worx Power Share tools. Models covered include WG151, WG155, WG251, WG540, WG890 and WG891 plus their .5 variants. The cells replace part numbers WA3520, WA3525, WA3575 and WA3578. Builders who need more than two packs or a higher amp-hour rating should look elsewhere.

Heat Noise and Power Draw

Lithium-ion chemistry keeps self-discharge low and delivers steady voltage through the discharge curve. No active cooling is required and the packs run silently in normal operation. Each unit is CE certified and tested by the manufacturer to match OEM performance specifications.

Capacity That Decides Fit

Capacity is 3000 mAh rated at 3.0 Ah, which determines runtime per charge for the listed tools. The physical envelope matches the original WA3520 footprint so the batteries seat securely in existing chargers and tool bays. Users needing longer runtimes per battery will need a higher-capacity pack.

How it compares

Measured against everything we stock in Disposable & Rechargeable Batteries, at today’s prices. Recalculated every night.

Price $32.99
Typical for this category: the median of 985 items is $28.99.

Specifications

Product
Product typeBatteries
Power
Battery typeLithium Ion

Questions about this item

How do I install the 20V 3.0Ah battery into my Worx WG155 trimmer, and what step do people often miss?

Slide the battery onto the tool's rail until the latch clicks firmly; the step users miss is not pushing far enough to engage the lock, leaving the pack loose during vibration.

What maintenance or replacement will these 3000mAh lithium-ion packs need over time?

Expect gradual capacity fade after several hundred charge cycles; store at roughly half charge in a cool, dry place and replace when run-time drops below your needs.

What limit appears first when I run a Worx WG540 blower continuously with a 3.0Ah pack?

The 3.0Ah capacity delivers limited amp-hours, so sustained high-current draw depletes the pack quickly and triggers the built-in protection circuit before the tool overheats.

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