【Full compatible 】Replaces Worx WA3551 WA3551.1 WA3553 WA3553.2 WA3641 etc series Battery. WA3551 WA3551.1 WA3553 WA3553.1 WA3553.2 WA3641 etc series Battery. Model No.: WA3553. Multiple protection electronics design protects battery from overheating, overloading, and overcharging.
eBay