I think I'm correct: Movi doesn't sell additional batteries yet. I like carrying an additional, fully-charged set of batteries when I shoot. I don't want to damage my CR, my phone, or myself with some "battery incident." The batteries in the CR appear to be 18650 Li-ion, 2000mAh, 3.7V batteries. Don't see those on Amazon. The ones I find are linked below: Panasonic NCR18650B Super Max Rechargeable Li-ion Battery, Flat Top Green, 3.7V 3400mAh or Samsung INR18650-25R 18650 2500mAh 3.6v Rechargeable Flat Top Batteries. Will those work properly, does anyone know where to find the ones in the CR, or should I abandon my backup battery idea?