I’m looking specifically at building little robots, but I know that a lot of projects are made that much cooler if they’re not tethered to a wall outlet. Little lithium polymer batteries would be perfect for little projects, but I haven’t been able to find many suppliers. Sparkfun is the only one I’ve found that has the right idea:
I think they could be sourced cheaper considering there’s lithium ion batteries in most modern electronics like cell phones and mp3 players so they’re definitely mass-produced. In any case, I think it’d be an attractive offering.
I’d infact agree they are very handy (if a little dangerous if not treated properly).
They are also very cheap these days, lithium batties (from a smart phone for instance) only runs a few dollars. The charging circuit and interface are a little more.
+1
[edit] I’d also push for a laptop like battery inface for long-term usage/robots. 6-9 Cells usually only cost about $60-100 which is very reasonable considering what they can do
