makita 193737-7 bh2420 24-volt 2.0 amp hour nimh slide style battery (discontinued by manufacturer)

8 Multi-contact terminals ensure a tight connection to the power tool even under extreme vibration. | CPU memory chip records usage history and transmits it to the MAKSTAR charger to determine optimal charge path. | Forced air cooling system circulates air through the entire battery to cool it down for maximum life. | Shock-absorbing construction protects battery cells against dust and vibration. | Fits all MAKSTAR 24-Volt Cordless Tools.
From the ManufacturerThe MAKSTAR battery system is the ultimate in cordless power and performance. “Secure-Slide” connection keeps battery locked in place. The built-in Data Memory Chip memorizes battery usage history that is then transmitted to the MAKSTAR charger’s CPU providing optimal charging action. Multi-contact terminals ensure a tight connection even under extreme vibration and the Heat-Sinks protect the battery cells by absorbing heat. Built-in air vents and heavy duty shock absorbing construction allows for increased battery life. Longer run time and longer battery life – just what you would expect from Makita.PROP 65 WARNING: This product can expose you to some kind of chemical, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.