Interesting thread. All very cool except the welding. A crap weld will NOT necessarily do for bikes. Unpenetrated, crystallized metal won't hold anything. Still, you're a heck of a brave soul to go for such a creative project without a good welding setup. I tend to be on the other end of that...
Depending on your situation and location a nice PV array is about the best investment around. I've installed a 6KW system at my home in Maui. Lots of sun, and very high electricity prices. While Maui is going to renewable sources quickly, the bulk of the electricity generated comes from oil...
I built a CatTrike with an Ecospeed mid drive and with some trepidation ordered two duct taped 48V 40AH batteries on eBay. My project sat on hold for six months so I just kept the batteries charged up by occassionally floating them on the fast chargers that came with them. When I finally got...
I've noticed that even the custom bikes folks are building tend to carry the batteries very high in the frame or even on a rack above the rear tire. This seems like it would adversely affect stability--especially the rack mounted batteries. I'm thinking about building a custom semi-recumbent...
OK I'm confused. Why would folks be buying Dewalt Packs to take apart. lowest price I've seen is $70 bucks for the 28v pack which must have 8 batteries. You can buy 8 A123 26650 M1A batteries on eBay for $72 with tabs welded top and bottom and the seller will weld them in about any configuration...
I've got lots of welding equipment (Tig, Mig, gas, etc.) but not the spot welding stuff I'd probably need. Sounds like sound advice. But what about the charger and BMS question?
There's a lot of information on the forum about packs, but a lot of it dates from 2007 or 8. It looks like 123 cells are pretty easy to get from China these days--at least it seems that way on ebay. I assume these are legit. I also assume folks are no longer disassembling dewalt packs to get...