For Ridgid Aeg To For Milwaukee Battery Adapter, Convert For Ridgid Aeg 18V Package including: 1 x adapter only, battery not included. ?Battery adapter can convert for Ridgid AEG 18V Hyper Li-ion battery to replace for Milwaukee 18V Li-ion battery. ?The upper interface of the adapter is compatible with Milwaukee 18V Lithium power tools. ?The lower interface of the converter is compatible with Ridgid AEG 18V Hyper Li-ion batteries: R840083 R840085 R840086 R840087 R840089 AC840085 AC840086 AC840087P AC840089 Series,etc. AR18ML Battery Converter is designed with high quality ABS Plastic material, durable and solid. Easy to install and remove. Attention Please: our adaptor cannot charge any batteries, if you want to charge your lithium battery, please use the professional charger. And please take the converter off the battery when not in use for a long time.