Suggested Retail: $36.83. Bonadget Upgraded 2Pack 3.5Ah 20V Replacement for Worx Battery - This 20v replacement battery for Worx is identical to the original in both appearance and size, and is as easy to install and remove. Made of high-quality cells with an adaptive chip for current and voltage stabilization, it provides overcharge, overcurrent, overvoltage, and overtemperature protection. The battery is compatible with Worx Battery WA3520 WA3525 WG151s WG155s WG251s WG255s WG540s WG545s WG890 WG891 and more. Our 20v lithium-ion battery has passed FCC, CE, RoHS certification and has no memory effect. With an upgraded capacity of 3500mAh, it lasts longer than the original battery, reducing the number of charges and extending battery life. Brand: Bonadget Model: For Worx battery 20V Max Battery -- LOT STICKER: TCE-BOX-BOXTCEB0756-ITEM-a45ce49d___LPNPMCG5036745 -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.