The TT's heating system fan is not battery friendly, and will drain the battery over night depending on how high you have the thermostat and how many times it comes on.
It may be possible that the batteries are not getting a full charge. Have DH check the battery voltage while it is being charged, with the generator. It should be between 13.2 and 14VDC, if not your not getting enough charge.
1- Take the voltage at the battery. Have DH pull the TT's 30 amp fuse by the battery. Get a Volt/Ohm meter that can measure Amps (most new ones do this and can measure 10 amps). Select the AMPs on the meter, plug the red probe into the battery side of the empty inline fuse holder and the black probe into the TT side of the fuse holder. You should only read like .1 or .2 amps. This is a normal drain.
2- If you have a normal drain, leave the fuse out and take a battery voltage reading 5 hours later (or next morning). It should be almost the same voltage (give or take .1 volts) as the first reading. If not you may have a battery problem... also check all the battery terminals/cables to insure they are clean and tight.
If you have a lot more drain, leave the meter in the inline fuse holder and start pulling 12VDC fuses, one at a time, in the TT's battery charge controller. You can then isolate the circuit that is causing the drain.
PLEASE RECONNECT THE CO METER, ASAP!!!!
Let us know what happens...
Oh, one more thing... check to see if your TT's break-away switch did not get activated. This switch is mounted on the tongue of the TT and has a cable that connects to the TV, in case the TT should become disconnected from the TV, it applies the TT's brakes. This will also drain the battery VERY fast.
Also check to see if your SOLAR panel has a blocking diode or solar charge controller. If not the solar panel will discharge the battery when the sun goes down. I looked at the panel specs and it shows 12VDC and .33 amps. This will not do much of anything to an RV battery, even if it is fully charged.
I am not a generator fan either. In most cases (units in newer TT's
) the TT's 12VDC output is generally greater than the generators 12VDC output. The benefit of the TT's battery charge controller is that it is a smart charger. If you have deep cycle batteries the worst thing you can do to them is charge them like an automotive battery, which is built (thinner plates) for that type of charging and heavy loads for a very short time (like cranking your car in the cold of winter.. a lot of amps for a short time). Deep cycle batteries have thicker plates and need to be slowly charged (like the TT's charging system). Since this is not a new TT, have SPARKY (hubby) look at the TT's charging unit and search the internet for its specs. This is good information to have... and if it does not meet your needs you can always get a newer model that has a lot of smarts to it. My unit specs indicate it COULD put out 40+ amps to the batteries, should they need them.
Hope this helps...
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package
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