neonjohn wrote:
Batteries
AGMs are the way to go. Wet cells are so last century. I have some AGM traction batteries (100 amp-hours, over 100 lbs of lead.) from the old AVS electric bus company in Chattanooga. They’re over 10 years, yet they discharge test at about 90% of rated capacity. I’m probably not going to use these because they are so large for the amp-hours. I’m currently looking at this battery, specifically 5 of them:
https://www.batterystuff.com/batteries/ups-telecom/universal-12v-110-ah-deep-cycle-sealed-agm-battery-ub121100-d5751.html
I have experience with this battery. Though it is made by the chicoms, it is a quality product. I’m still shopping for a better price for that class of battery.
You might want to also consider this battery model in your system - they are 115 AH each and are warranted for 5 years:
http://www.fullriverbattery.com/product/batteries/DC115-12Regarding the squealing belt on your E350 while spinning it's alternator under load: There definitely must be a way to stop this. Our E450 has a 130 amp alternator and at times dumps over 70 amps (with the V10 idling) into our two paralled batteries of the type in my link above ... and there is no belt squeal.
