yeah receiver only 5c so guess not enough to run motor..well it does but if you push it it shuts down.the Hyperion is only 2 cell as well but yeah 25c so will just carry on with that..was trying to get some extra run time from the 2700 and there doesnt seem to be a lot of batteries around hump pack size that may work as all seem to be receiver packs with lower c rating....lucky i have a JQ white edition coming so will use the receiver pack for that. cheers.