This is a generic, equivalent one, 100% compatible. This 56V 2.5Ah Replacement Li-ion battery is designed to compatible with Worx WA3555 WA3559 WG191 WG291 WG391 WG591 WG771 WG772 WG773.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 56V
* Battery Capacity: 2.5Ah
* Chemistry: Li-ion
* Condition: new, 1 Year Warranty!
* It is easy to use, convenient to carry with.
* No memory effect, Integrated microchip prevents overcharging & lengthens battery life.

Compatible Part Numbers:
WA3555, WA3559

Compatible with the following Worx Power Tools models:
For Worx WG191, WG291, WG391, WG591, WG771, WG772, WG773

Package Included:
1 x 56V 2.5Ah Replacement Battery for Worx WA3555 WA3559 WG191 WG291 WG391 WG591 WG771 WG772 WG773

NOTE:
1.The battery must be FULLY charged before first use.
2. The battery is stored in a cool and dry place.
3. Do not Separation, extrusion, and impact.
4. Do not put battery into water and fire.
5. Keep away from children.