Compatible For All 1.5A/2.0A 20V Battery, Not Compatible With Impact Wrench-Aciw326. | | Diagnostics With Led Indicator Communicates Battery Charge Status. | | Plugging The Battery Into The Charger And Connected To The Home Power Supply, Both Green Light And Red Light On The Charger Are On. If The Red Light Goes Out And The Green Light Remained, The Battery Is Fully Charged. | | Fully Charged In 3-5 Hours; Note: Battery Is Not Included; Each Charger Is Thoroughly Inspected And Tested Before Leaving The Factory | | In Order To Extend The Battery Life, Fully Charge It After Each Use And Ensure That It Is Charged Every Three Months; | | |