1 SIZE:SC 2 Voltage:12V 3 Capacity:600mah 4 Certificate:UL,EC/ROHS,MSDS,CE, etc ... capacity, lower inner resistance.2 IEC standard,fast charge available.3 Provide both single cells and battery packs.4 All products ... have attained the certificates such as CE/RoHS, ISO9001, MSDS. 12v Rechargeable Battery Pack