Worx WA3769 USB Charger Adapter Battery - Walmart.com
Amazon.com: Energup 2Pack WA3520 20V Battery for Worx 20V Lithium Battery 3.5Ah PowerShare for WA3520 WA3525 WA3575 WG151s WG155s WG251s WG255s WG540s WG545s WG890 WG891 with a 20V Worx Battery Charger :
Amazon.com : WORX WA3012 20V Power Share PRO 4.0Ah Lithium-Ion High-Capacity Battery, Black and Orange & WA3770 20V Li-ion Dual Port 2 Hour Charger : Tools & Home Improvement