what to do with spare D cells

hi

i bought 20 D cells on ebay a couple of months ago. i wanted to make my own pack but i bought the 3ah by mistake. -oh, how much i have learnt in the last month, just reading this forum!

i think i half fried them or something cause they don't hold much charge now but they never really worked as an ebike battery.

i dont have the machine for welding tabs and i couldn't solder them effectivly maybe this had something to do with it?

Anyway -what should i do with these batteries?

honestly? resell them on ebay - try and recoup some of ur money.

that or build them into a booster pack. But if you're having trouble soldiering them, could be a problem!

Stuff 'em end-to-end in PVC tubes and make a pack for lights.