3.0 amp-hour capacity-5x lower self-discharge keeps battery cells active and ready for use, even after long periods of storage-Charging at any time will have no effect on the battery-Built-in shock absorbing features protect the battery-Sixteen firm holding contact terminals reduce the risk of power loss/fluctuation in high vibration work environments-Battery's built-in memory chip communicates with the charger to maximize battery life using 3 Active Controls (Current, Voltage & Thermal)