For Worx WA3551 20V Max 5.5Ah Lithium Battery 2Pack and For Worx WA3880 18V (20V MAX) Fast Charger 1 Hour Charger Charger Compatible Models:(Please use "Ctrl+F"find your

Compatible Models:(Please use "Ctrl+F"find your own PN & Model)

Voltage: 20V Max / 18V

Battery Type: Ni-MH

The battery must be FULLY charged before first use

For Worx WA3551 20V Max 5.5Ah Lithium Battery 2Pack and For Worx WA3880 18V (20V MAX) Fast Charger 1 Hour Charger Charger Compatible Models:(Please use "Ctrl+F"find yourBattery Specifications: Capacity: 5500mAh Battery Voltage: 20V Battery Type: Lithium ion Color: Black and Green Replacement PN : WA3551, WA3572, WA3553, WX390, WX176, WX178, WU268, WX166. 4, WX372. 1, WX800, WX802, WX678, WX550, WX523, WU531. 9, WG894E, WG629E, WG329E, WG259E, WG169E, WG026. 9, WG894E. 9, WG546E. 9, WG546E. 9, WG546E Compatible with: WORX WX386 WORX WX386. 9 WORX WX550. 1 WORX WX550. 9 WORX WX384. 1 WORX WX166. 3 WORX WX176 WORX