hi alex,
i would say no, because even if 24v would blow 12v drills normally, i doubt the drill batteries will give you the current to do that anyway. If in doubt, try shorting the fully charged set across an ammeter for a second (not more) and i imagine youll see 10-12 amps maybe on 24v.

if you are keen to use both sets, run one to each controller and have 12v per side. you need 2 links, but there is no rule that says both controllers must share the same battery.

another option, buy the motor/gearboxes alone from ewan, and get some better batteries with the money you save. 2 x £12.99 = £25.98, 2x ewans drills = £17, leaving you £8.98 to put towards much better batteries than the ones that come with the drills.

another option, if you have electronize controllers, is put the 24v on as you say, and turn the gain (speed) down on the controller to 12v. you can always turn it up again later if you want more performance.

hope this helps

(Message edited by jamesb on July 07, 2006)