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SDS is a really useful tool to have. Not much point in getting another corded drill with a 3 jaw chuck. You can get a chuck adapter for an SDS if you need that feature
I paid extra to get 1x 5Ah battery for my DeWalt cordless set.
Was cheaper to do that and pick up a couple of 1.5Ah batteries for quick and easy jobs rather than get the kit with 2x2Ah batteries (the only other option) and buy a 5Ah. (Think they were nearly 90 quid at the time, the 1.5Ah were under 30.)
@mert I just ordered a DeWalt 5Ah battery for £57 including postage from Bradfords Building Supplies.
Edit:no idea why that link isn't working?
I must admit I didn’t know that higher capacity batteries produced more torque, it seems counter intuitive to me.
So a 2Ah battery pack will be a set of single cells in series. The max current the pack can deliver will be the maximum current a single li-ion cell can produce.
A 4Ah battery back is basically two 2Ah battery packs in parallel, so the maximum current it can deliver is 2x the maximum current a single cell can deliver.
A 6Ah battery back is three 2Ah battery packs in parallel, however you probably won't get 3x the current / torque as at this point the limiting factor will probably be the internal resistance in the motor windings whereas with a 2Ah battery pack it's the internal resistance of the individual cells themselves.
NB Nothing wrong with 2Ah battery packs, they are small and light and can do 90% of jobs and are fine on an impact driver, it's just if you want to drill something tough, they can't deliver enough current. I use 2Ah most of the time and just use the heavier ones for beefier jobs eg I had to drill 50 fence posts the other year and only 4Ah could do that.
@blokeuptheroad
Cheers, but i'm all set now, bought the new tools last year when i was doing "big jobs".
Also, not in the UK, so thanks brexit 😉