Re: 2001 "REV4" - Build Thread
Thanks Gary - the Farnam heating pads work great - all winter they kept the temps nice and cozy... I put them on a timer, so they came on a few hours before driving. I have some simple 120VAC thermal cut-outs, but never got around to using them. The boxes ended up with no insulation at all (not enough room) - with the heating pads it worked well though. I did not push high mileage though, and kept everything fully charged (mostly shorter drives) so not the best winter test.
There are fans in each bat box, tied into the Elithion bms (which measures the temps based on each cell board) - they have never come on yet (although this will be my first hot summer, so will see). They just vent into the car interior (I may have to change this).
I add a 240V/50A GFI box in my garage, so can now fully utilize my Manzanita 40A charger (before this I was only using 120/15A) - with the fast charger it always seems to be full whenever I go for a drive - should help the battery life. That said, on warmer days, I have to open the back door to keep the temps down inside the car - the charger throws a lot of heat.
Installed the VW pump - much quieter compared to the oil-filled muffler one I replaced. It is barely audible (compared to a incredibly loud HONKKKKK from the old one)... It is a higher pitch and runs for longer (much smaller pump) but all good. One note - the vent for the unit is a small hole at a joint (about the middle of the pump) - I thought it was the button on the bottom. I wrapped it with some insulation and duct tape (and covered this hole) and it kept running (ie did not produce any vacuum) - cleared the hole and all is well - most pleased.
Went for a 80 kM ride tonight (avg 80km/hr)- still had lots of juice left, no heating issues - all good.
Last edited by gdirwin; 06-14-2011 at 03:30 PM.