Battery drill, 18v or 14.4v, does it matter?

[Jay The Plumber]

Yes, the higher voltage will have more power, but only if the motor is same quality I believe. Something to do with extra windings I think, plus obviously the way the tool mechanics are designed. The brushless will be different.
I guess when you buy a cheap drill, you get a cheap made motor inside it.
The torque figures from each manufactorer can be a bit suspect, so just use them as a guide, especially with the more cheaper DIY tools.

yep..
the brushless are savage.
also, make sure the gearboxes aint plastic.. youll knacker them pretty quickly if using hard

 

[REDSAW]

lion what are those

mines an xrp all metal gear box with ni-mhi 2.6amp, 30min charger and plenty of batteries. i just repaired 2 of them by changing some cells from a donor battery-10 min job.
the new 4amp batteries take an hour to charge and once there gone get your hand in your pocket time!

i should imagine weight dont come into it much now, but when i bought mine a 18v with your arm in the air would soon tire you out, hence the 14.4v choice!

all depends on the budget really, a decent one without being too much would be half the money for some other tools and still give you years of service until the new nuclear powered ones become the must haves .

 

[gmartine]

As has been said if you compare like with like (same motors, gbox etc) you'll get more top end torque/power with more voltage as run time is based on amp/h. Dewalt are sort of pulling a fast one with their FlexVolt system, notice they mention the battery amp rating in 18v guise (6A) but not 56v which could only possibly come in 3A. Good power, not great run time but backwards compatible, I'm fairly sure Milwaukee's 28v (5A) SDS will still **** on the 56v SDS anyway with it's superior motor and hammer mechanism.

 

[gmartine]

I meant (56v) 2A not 3A for the same power out.