Well you use these batteries do you think it's true? Many use the 10440's with Joye atties. If they maxed out at .5a that would mean a max of 1.1 volts.
As far as your 2 battery statement one 14500 is superior to two 10440's. Remember 'C' ratings are based on time
and mAh. A battery with a high mAh rating can be charged at a higher and faster rate and by the same token can release this current faster. Hence one 900mAh 14500 is better overall (and cheaper) than two 320mAh 10440's. You'll also probably get a higher original nominal voltage. Either way a 10440 is
not limited to 0.5A And remember when vaping you are using short bursts. Maybe it all means that the 10440's with a sustained, start to finish, complete to discharged state, can only provide .5A.
