Yes, I have laid out a pair of boards that has the battery module circuits on them. One board plugs into the mainframe (it has the thermistors on it) and the other has the rest of the circuitry. I have not ordered them yet... I need to buy the festoon lamp connector and have been waiting until I have to order some more parts from Mouser. What I didn't do is try and build the whole battery module with all the mechanical parts/frame/etc. I may laser cut a back panel piece, though, out of acrylic.

-------- In message <BLU170-W43993C7B1CB8ABA5625B8ACE970@phx.gbl>, Mark Sims writes: >Yes, I have laid out a pair of boards that has the battery module >circuits on them. One board plugs into the mainframe (it has the >thermistors on it) and the other has the rest of the circuitry. I >have not ordered them yet... I need to buy the festoon lamp connector >and have been waiting until I have to order some more parts from >Mouser. What I didn't do is try and build the whole battery module >with all the mechanical parts/frame/etc. I may laser cut a back >panel piece, though, out of acrylic. My plan was somewhat simpler: Just a 24/24 isolated DC/DC converter (for isolation obviously), no need for an extra set of batteries in my case. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.