I hate to say it, but same here. If you do anything, you will be blamed for everything that goes wrong on the vehicle in the future. I learned that lesson from trying to help family in the past.I wouldn't mess with my neighbors battery...
Clamping with a zener isn't really a great way to try to limit the output of a power system.That's good information, particularly about the output being directly proportional to line voltage (117 AC RMS in my house).
I suppose the next step up was to to put a Zener across the OP to clamp the voltage to c. 13.2 - 14.2 V.
I guess it would have to be one capable of handling the excess current.Clamping with a zener isn't really a great way to try to limit the output of a power system.
A modern charger will gradually charge with a tapering charge until fully charged at which time a good charger stops charging and switches to a float charge. A float charge will maintain by only adding a light charge when voltage drops below a specific level just a hair below full charge.I guess it would have to be one capable of handling the excess current.
How does a modern charger regulate voltage?
45-65AH ? or are you talking semi batteryA full size battery is closer to 90 amp-hours, not 50.
This deep cycle group 24 battery boasts 101 amp hours. Maybe reserve capacity only depletes a battery to a point where it still works, eg starts the car again.45-65AH ? or are you talking semi battery
USING RC of 150 which isnt perfect suggests 63AH for my old battery which was a fairly hefty h7