Charging batteries

Perhaps a transfer switch problem so no 120v to converter?

Stude55Dog wrote:
Is the invertor the one responsible for charging the batteries? The generator also after about an hour of running seems to start missing every once in awhile and I am wondering if when battery voltage gets low does this effect the running of the generator. Thanks

If it's an inverter/charger, yes. No.

What are you using to measure the voltage? Are you measuring that after the charging is done, or during?

When hooked up to shore power or generator measure the voltage at the battery - should be 13.2 or higher. If the voltage to the batteries is OK then it's likely your batteries need replacing - have them load tested (it's free). If the voltage is less than 13.2 then test the voltage at the converter - if the converter isn't producing voltage check for the fuses on the converter and if they are OK you likely need new converter.

If voltage at converter is OK but not OK at battery check for blown fuse/breaker between converter and battery.

Stude55Dog wrote:
When I run the generator it only charges up the batteries to 11.87 volts.

That means that they likely aren't charging AT ALL....or at least not enough to do any good. 11.87 is about 70% discharged.

If that is the reading while the gen is running, then you have a tripped breaker or a bad converter/charger or a loose connection.

That is assuming, of course, that the 120 V output from the gen is OK.

If the reading while running is much higher and then it drops below 12 when the gen is shut off......then the batteries are SHOT or you aren't leaving it run anywhere near long enough.

A "converter" would be the device that charges batteries. There are just so many variables with batteries and charging that an accurate diagnosis can't be listed. If the batteries were new in '07, you may wish to have them load tested.

The generator should be able to power the ignition circuit with no effect from the batteries. If you have an electric fuel pump, there may be some effect from faulty batteries.

Post make and model of your converter and how many amps it puts out to your batteries. Also how old are your batteries?

Failed to add it has 2 marine 12volt batteries, not deep cycle. Thanks