I love my Roomba, but among some other minor irritations there's a rather large one. The replacement batteries cost sixty dollars. Doing a bit of looking around online, you can discover that the
roomba battery is just a bunch of C NiMH batteries inside a fancy yellow case.
For about
thirty dollars you can purchase a pack of batteries to go inside the case, and just replace the batteries instead of throwing the whole case away.
Sounds peachy, right? It turns out this project requires soldering, something I'm not very good at. I've watched my husband do some soldering before but I've never had to myself. And it also turns out that you really can't solder a stiff metal tab to a wire without another pair of hands to help hold the two together.
Unlike the neat, original solders mine have big blobs of solder on top of the tabs as opposed to little blobs of solder below. Also, I managed to melt on of the tabs into the yellow battery case. I'm pretty sure it's permanently in there now. Miraculously, it worked. But I think next time I'll just buy the battery.