/diy/ - Do It Yourself

>>1211735
MIT's "How to Fabricate Almost Anything" should be mandatory high school graduation material imo.

>>1211753
Test by running the controller on 3 fully charged AAA NiMHs. If it runs well with those 3 * 1.2V = 3.6V, it should run well with LiPo, as far as voltage is concerned.
>I realize the LiPo cell I have is not going to last as long as 3 AAA batteries
Pic related... maybe? Here are discharge curves of who the hell knows what alkaline AAA and of who the hell knows slightly smaller LiPo, as if the first images I find on iamge search are somehow representative. They aren't exactly comparable, but they do illustrate that run time is very dependent on discharge rate, and suggest that a LiPo in good condition may be slightly superior in that respect to alkalines. To know for sure, you really do need to have a good idea of the current consumption of the controller when active. (C = the battery capacity/hour, in this case 750mA)
>Anything else I need to consider here?
The controller will probably take any voltage a LiPo will put out without damage. The LiPo, on the other hand, should not be run to a very low voltage for longevity. 3.2V is a reasonable, if slightly conservative guideline. If they go much below 3V, they may react poorly when next charged.