*Type of product:Li-ion Volt:14.4V, Capacity:6500mAh *Dimensions:132.50 x 39.20 x 38.20mm Weight:429g *Fully compatible with Robovac L70 Hybrid, T2190, T2190G21 Sweeping Robot. *Install the battery in 2 minutes. Just remove the two screws on the bottom, remove the battery connector and plug in the new one. So revive your robot.If worried that you will mess up, you can refer to the video on Youtube for preview. *High quality, no memory effect,battery replacement for is tested by professional tester under strict quality control standards, over temperature protection, over charging protection, over load protection, short circuit protection and safeguard protection. You can use Replacement Battery with confidence.