You will receive the most current version of this 3.5 amp Maximizer Charger. Rev C (A24030-10C) has been discontinued and the current rev is D (A24030-10D). This charger will work on all Jazzy joystick ports and scooter charger ports. We recommend only using this charger on batteries from 17 amp to 35 amp. This would include scooters like Victory 9, Victory 10, Gogo Sport and Go-go Plus. This will also work on all the Jazzy Select series power chairs.