I have been using a Hyperion duo charger and it handles all my needs. Its limited at 6s but I have 2 of them and they handle all my nitro and e buggy needs with ease. I domt like to wait for charging. You have to have a power supply that can meet the demand of your charging. I use a max amps 24v ps on the bench at home and a muchmore 24amp ps for each charger at the track. The max amps is just too large to go to the track.