I just started having this issue with my 2013 RZ2 with 105 hours on the clock - factory Interstate cranking and deep cycle batteries installed. I have never had any real issues related to the batteries or charging system previously, and certainly not last fall when the boat was winterized and put into storage. Per usual, the batteries were removed and stored in my garage connected to their charger/maintainer.
This spring, the batteries were re-installed, and the boat was run up on a fake a lake to get it ready for the season - all per usual practice. At this time, I noticed that the Tige Touch gauge was reading 12.5V on the house battery and 14.1V on the cranking battery with the engine running. This seemed odd as they have always read nearly identical in the past - I assume that this reading should be alternator output volts?
Anyhow, I was prepping the boat yesterday for an outing today, and decided to double check on the battery issue. Thinking it to possibly be a battery problem , I took them out and over to a battery shop to be tested. Both tested as excellent. Today was our first day out on the water, and the difference in voltage readings persisted. I did notice that the more load we put on the house battery, the lower the voltage would drop (12.1V at its lowest point). This was true even when the engine was running. The battery did tend to recover slightly once the load was reduced.
Once home this evening, I plugged the tender in and the house battery is quite a bit lower than we had ever experienced in the past - we were not particularly hard on it today either.
So, does this sound like an issue with the charging system? Any help is much appreciated.
-Tulsah
This spring, the batteries were re-installed, and the boat was run up on a fake a lake to get it ready for the season - all per usual practice. At this time, I noticed that the Tige Touch gauge was reading 12.5V on the house battery and 14.1V on the cranking battery with the engine running. This seemed odd as they have always read nearly identical in the past - I assume that this reading should be alternator output volts?
Anyhow, I was prepping the boat yesterday for an outing today, and decided to double check on the battery issue. Thinking it to possibly be a battery problem , I took them out and over to a battery shop to be tested. Both tested as excellent. Today was our first day out on the water, and the difference in voltage readings persisted. I did notice that the more load we put on the house battery, the lower the voltage would drop (12.1V at its lowest point). This was true even when the engine was running. The battery did tend to recover slightly once the load was reduced.
Once home this evening, I plugged the tender in and the house battery is quite a bit lower than we had ever experienced in the past - we were not particularly hard on it today either.
So, does this sound like an issue with the charging system? Any help is much appreciated.
-Tulsah
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