Can anyone recommend some high capacity rechargeable D cell batteries. Most of the ones I’ve found so far only seem to be around 2500 mAh (about the same as a AA cell), I’ve found a few 10000 mAh but they seem mighty expensive.

Haha, classic film.

If you can’t find D cells at a resonable price these could be an alternative solution….

http://www.ebay.co.uk/itm/4-x-2AA-to-D-Battery-Adapter-Converter-Case-New-/110740710716

I’d rather have somewhere near the 10000 mAh capacity.

Maplin have 2x 5,000mAh for £9.99

Otherwise you are looking at £10 each for 10,000mAh

The price is about right tbh as thats 4x a high power AA cell in one D cell.

I could buy a lot of non-rechargeable’s for £60 + the cost of a charger 🙁

what are they for?

DAB/WiFi radio, quite heavy power consumption.

what voltage does it need?

Might be possible to rig up a lithium ion battery pack.

what voltage does it need?

Given the drip fed info, I’d guess a range of 9V to 6V (6 cells). Which would suit a LiIon pack very nicely. Mind you, a 10Ah LiIon pack isn’t going to be that cheap either.

how about DX: http://dx.com/p/genuine-bty-rechargeable-1-2v-8000mah-d-type-battery-137255

Did anyone else think:

emergency lighting replacement pack from electrical wholesalers … break up the pack

DAB/WiFi radio, quite heavy power consumption.

You’re not kidding! How big is it, about the size of a suitcase?

I’ve been using converters and AA cells for the last few years. Keep it cheap and simple.