Hi Andy
That would be another way

Although I don't have much love for NiMH batteries ....

My super duper Bosch 12V drill died after 2 yrs .. battery packs plastic welded but yielded to some butchery
10 batts in each pack, 3 shot in one, 2 in the other ... drill kit with drill, 2 batts, charger, case was £70.
ONE !!! new batt. £53 ??? WTF ???
Crappy (?) Nu-Tool ( £9.99 ) with one 18V NiCad pack is STILL alive and kicking some 4 years after the demise of the BOSCH ..
End
BC