【Converter Function】: The battery adapter can make listed 20V max lithium batteries use on WORX 18V Ni-MH cordless power tools , and let you Enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools.
【Applicable Battery Models】: The bottom of this adapter can allows for use of 20V lithium batteries, Compatible with Worx WA3520 WA3525 WA3575 WA3578 WA3511 WA3512 WG153 WA3512.1 WA3522 WA3523 WA3544 WA3671 WG151s WG251s WG255s WG540s WG545s WG890 WG891 20V Batteries etc. (Default without battery)
【Replace 18V NiMH Battery】: Replacement for Worx 18V Ni-Mh Battery. Compatible with Worx 18 Volt cordless power tools models WA3127 WA3152 WG150 WG150s WG152 WG250 WG541 WG900 WG901 WG901.1, But can not fit for Worx 20V tools.
【Reliable and Convenient】: This cordless power tools adapter made of ABS + PC material, strong and durable. Professional compact design and easy installation. Convenient to carry and easy to use. Size about 130x86x93mm/5.12x3.39x3.66inch(Approx.).
【Using Notes】 1.CANNOT charge battery with this Adapter! Please remove the adapter before charging battery (Use the original brand battery charger) ; 2. Maximum initial battery voltage(measured without a workload) is 20volts,Nominal voltage is 18volts. 3. Please remove it from the battery when not in use, Safe to use;

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