I have an E825. Just installed new Group31 Crown batteries. When i charge to 100 via the dash monitor within 24 hours discharges on its own to 75 and then maintains there. Did not do this with old batteries. I checked each individual battery separarate to see if i got a bad battery but they all check.out. i tried charging to 100 and then switch off the main disconnect and the same. Im stuck. Seems to be discharging without any load on it but stops at 75. Thanks in advance for any help.on this
I checked each individual battery separate to see if i got a bad battery but they all check.out.
To properly diagnose what is going on with your car, more detailed info is needed. Do you have a handheld meter?
i tried charging to 109 and then switch off the main disconnect and get same.
What charger are you using? 109 does not make sense. The onboard charger should be left plugged until it goes through a complete cycle. Then check all the batteries with a meter to make sure they are all balanced to at least 0.10v (or closer) of each other.
Sorry i missed typed 100 not 109. Also I have an onboard Quick Charge and also a 72 volt external i use. Both worked properly on batteries i switched out. Reason for changing batteries to new ones was that person i bought from had dual purpose batteries in cart instead of deep cycle. They worked and took a full charge but didnt drive far due to type of battery
Consider that your display may be lying to you . . . compare fully charged voltage to the voltage when it claims 75%. Got a meter? That way you can determine if it is a battery problem or a reporting one. Why? There is a battery capacity adjustment that you can update (with the trip button and turn signal) within the computer that might be needed. Will watch to see what you find.