2.5 weeks and no issues,… Is the future of electric vehicles getting brighter?? So, after sending the wife for more bandaids, I decide to check acid levels and check for corrosion. The gallon of dielectric grease seems to be helping the corrosion issue. Anyway I cleaned some connections and replaced a terminal end that was weak. Having noticed a lack of brightness on the head lights, I decided to check battery voltages. Here’s what I found. Zivan charger on and charging (solid red light) B1-16.4V… B2-15.1V… B3-15.1V… B4-15.2V… B5-15.0V… B6-15.2V… Charger off with yellow light (80-90 percent charged) B1-13.8V…B2-13.5V…B3-13.5V…B4-12.5V…B5-13.6V…B6-13.6V… B1 Is one year old, B2 thru 6 are almost three years old. All are trojan model 1275. So… B1 is getting an extra volt when being charged. B4 is putting out 1 volt less than the rest. Once the pack is fully charged , I will re test. A friend of mine suggested rotating the batteries and I’ve read where the middle two batteries can be problem children. Would that help? As far as B4 goes, there is a factory orange cable going from B4+ Into the harness and I assume finally making it’s way to B5-. Is this cable direct or does it go through the controller for turf mode or something else?
Dialectric grease by the tub… Not just for date night anymore.
LOL 
you must have been popular in high school…