How can I make a 3 AA rechargeable batteries powered device last longer? Answered
I got a battery powered plastic cutter ( the batteries were used to heat the blade) and turned it into a soldering iron. I thought it being really smart of me, but the power of my 2700mAh batteries is severely not enough to melt the solder for long. Ater 15 minutes' work it simply stops melting, while the batteries are still fully charged, so my charging device simply turns the green light on and refuses to charge them. HELP!!!