I've got a nice little portable DAB radio (Tesco's best Technica - usually surprisingly good quality stuff) and I want to use the battery option rather than always dragging a mains lead around.
It takes 6 AA batteries to give a 9V supply. I hear that DAB is a real battery muncher, so I don't fancy using ordinary cells.
However, rechargeable AA batteries only kick out 1.2V, which would mean 7.2V in total.
Is it going to work with a 20% reduction in voltage? As it will cost £££s to buy the batteries and charger I'd rather know in advance.
Unsurprisingly, my local electrical shop owner says "It'll be fine. That's £22 please".
I've got a few rechargeable NiMh AAs around with all different capacities. Do they all have to be matched, and what happens if some are 1700MaH and some are 2400?
