The carbon battery is based on the lead acid technology. Unlike lithium batteries standard lead acid batteries have a big discharge capacity (up to C3*). Indeed, a much longer charging time (up to 10 hours, =0,1) must be accepted to prevent sulfatization which would shorten the lifetime of the battery. The new carbon technology provides a solution for this problem: Using carbon guarantees much less sulfatization of the negative electrode. Thus, the battery can be charged up to 3 times faster (=0,3C) than a standard lead acid battery.