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Showing results for tags '17volts'.
Just had some repairs and service done on my Lister SR2 engine after it completely packed up and have now noticed that the batteries are reaching up to 17volts when at full throttle with the battery selector switch set to ‘both’ or position 1 (leisure batteries). If I select position 2 (starter battery) then it is around 14v as normal. Both sets of batteries have taken quite a hammering recently with the number of times the engine had been cranked prior to the repair so did wonder whether a fault had developed on one of the leisure batteries causing it to over charge? I then disconnected the batteries and checked the voltage and they were all around 13 volts. I always keep the batteries charged on shore power but it seems strange that it would register such high voltage so was thinking more likely the alternator. As far as I’m aware it wasn’t touched when the repairs were done as the injectors and fuel system were causing the original problem. Any help most appreciated. Wakes.