Has anyone used this smart battery before? in Filmmaking / Cinematography Posted August 26, 2019 · Report reply I recently browsed into this TI22000 smart battery from MMC with a capacity of 22,600 mAh, a voltage of 26.1 V and 20 C rate. It claims to have functions like overcurrent, overvoltage short circuit protection for a greater security for battery use. Just wondering if this is really as safe as it claims to be. Anyone used this before? I need some advice.