The reedy 4800 is a 20c, the 5200s are called "GE Power" they are 25c All three of these I bought new and put maybe 15 to 20 cycles on them? the 4400 Max Amps I got second hand from a friend, no Idea how many cycles on it or the C rating but it still takes a full charge and is the fastest battery of them all, All were balanced every charge on a Venom Pro Charger and work perfect and are good batteries.