【Work for AEG/Ridgid 18V Li-ion Battery】: Our battery adapter Perfectly compatible for AEG and RIDGID 18V battery, such as R840083, R840085, R840086, R840087, R840089,AC87004, AC870015N, AC9540, AC8400802, AC840020, AC840040 ect(Not Compatible with RIDGID 18V ADVANCED Batteries).For ridgid battery adapter 【Use for Milwaukee M 18 18V Power Tools】: The AR18MIL battery adapter 100% full work on for Milwaukee M18 18V Power Tools, which means you can use your old for Ridgid AEG 18V batteries to for Milwauke M18 18V Power Tools. For Ridgid to Milwauke battery adapter, For ridgid battery adapter 【Easy to Use】: The AR18MIL battery adapter is really easy to use. Just insert the for ridgid AEG 18V battery into our AR18MIL adapter; and then pull both into the base of 18V for milwaukee power tools, then please Enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools. For ridgid battery adapter 【Customer Satisfaction】Enjoy peace of mind with our 30-day free return policy, 12 months of quality service, and 24-hour friendly customer service. We are committed to ensuring your satisfaction and are here to assist you whenever you need us. It is power tool Battery Adapter is compatible with for Ridgid AEG 18V Lithium ion battery convert to Milwauke M18 18V Li-ion battery cordless power tools, which means you can use for Ridgid AEG 18V Li ion battery to replace for Milwaukee original M 18 18V lithium battery tools as normal. For ridgid battery adapter It is easy install and use convenience, black color, High quality, DIY battery converter. Let you Enjoy the benefits of extended run-time of Lithium-Ion Batteries on your existing 18V tools. Using our battery adapter can save you the cost of buying new original batteries