Question: are rockwell and worx batteries interchangeable?
Answer: This battery can be charged with your existing Worx charger (for example WA3848, WA3860 and WA3867) and is fully is interchangeable with Worx and Rockwell battery number(s): Worx WA3512, WA3512. 1, WA3520, WA3522, WA3525, WA3528, WA3530, WA3544, WA3551. 1, WA3553, WA3553.