For DeWalt to for M12 Battery Adapter:

Compatible with DeWalt 20V 60V lithium battery, then convert for DeWalt battery to power for M12 cordless tools;

For M18 to for M12 Battery Adapter:

Compatible with Milwaukee 18V for M18 lithium battery, then convert for M18 battery to power for M12 cordless tools;

Notes:

1. this battery adapter is only a battery converter and only this adapter is included in the package;

2. This converter adapter can't be used for charging, you must remove it from your battery before charging;

3. Please remove your battery from this adapter after use.

4. If you left your battery on the adapter for long time and it can't be charged, you can find a local hardware store
to reactivate it, then the battery can be charged;

5. This battery adapter doesn't support your original battery holder.