Battery Specification:

OEM Replacement 
Battery model: WA3520 
Battery Voltage: 20Volt
Battery Capacity: 3.0AH 

Battery Type: Lithium lon 

Replacement Part:
WA3578, WA3525, WA3575, WA3520, WA3512, WA3522, WA3544, WG151s WG155s WG251s WG255s WG540s WG545s WG890 WG891

Fit for Worx Tools Model
WX550L 2-in-1 Reciprocating Saw and Jigsaw
WX176L Cordless Drill and Driver
WG546 Leaf Blower
WG629 Hydroshot
WG255.1 Hedge Trimmer
WG954 Trimmer/Edger and Turbine Blower
WG320 JawSaw
WG163 Trimmer/Edger
WG801 Shear Shrubber Trimmer
WX026L.9 Work Light
WG151, WG151.5, WG155, WG155.5, WG251, WG251.5,
WG255, WG540, WG540.5, WG890, WG891. WG584, WG284,
WG284.9, WG644, WG644.9, WG184, WG184.9, WG779, WG744,
WG751, WG779.9, WG744.9

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.