Extend the recording time of your Tactacam HD Camera with a Tactacam Rechargeable Battery. 3.7-volt lithium-polymer battery. Per each. Available: 2.0 Fits the Tactacam 2.0. Provides up to two hours of runtime. 1,100mAh. 3.0/4.0 Fits the Tactacam 3.0 and 4.0. Provides up to 2.5 hours of runtime. 1,350mAh. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Batteries.