Applies to 2020 3740BH-R (...or a least the one I own LOL)
Greetings Everyone,
I just discovered the battery level monitor lights that you activate by pressing the battery button at the Convenience Center does not indicate the battery level on our beloved 3740BH-R when shore power is on. It is attached to the Converter side of the battery switch and indicates the voltage output of the 110V to 12 V converter when the rig is plugged in.
I discovered this while installing a bank of 4 Interstate SRM-24 batteries and had all batteries unattached (and shore power was on). I went inside to check my tank levels and decided to press the Battery button for grins and all four lights lit up indicating a full charge. What??
Now I remember the first move I made, I went to pick up the levelers and the leveler control panel wouldn't come on. I checked the battery voltage with a meter and it was less than 10 volts because the battery switch had been shut off and the batteries will not charge with the switch off. When I discovered the low voltage I went in and pressed the Battery level indicator and it was 4 lights showing a full charge. I just assumed it was inaccurate.
I looked in the manual and it states the button is to determine the auxiliary battery level. The secret is you have to shut off the shore power to have an accurate battery reading and not be reading the output of the converter.
Besides, a good volt meter should be in the kit anyway, right.
Just something to keep in mind....
Sarasota Ron
2020 3740BH-R 2021 Ram 3500
Greetings Everyone,
I just discovered the battery level monitor lights that you activate by pressing the battery button at the Convenience Center does not indicate the battery level on our beloved 3740BH-R when shore power is on. It is attached to the Converter side of the battery switch and indicates the voltage output of the 110V to 12 V converter when the rig is plugged in.
I discovered this while installing a bank of 4 Interstate SRM-24 batteries and had all batteries unattached (and shore power was on). I went inside to check my tank levels and decided to press the Battery button for grins and all four lights lit up indicating a full charge. What??
Now I remember the first move I made, I went to pick up the levelers and the leveler control panel wouldn't come on. I checked the battery voltage with a meter and it was less than 10 volts because the battery switch had been shut off and the batteries will not charge with the switch off. When I discovered the low voltage I went in and pressed the Battery level indicator and it was 4 lights showing a full charge. I just assumed it was inaccurate.
I looked in the manual and it states the button is to determine the auxiliary battery level. The secret is you have to shut off the shore power to have an accurate battery reading and not be reading the output of the converter.
Besides, a good volt meter should be in the kit anyway, right.
Just something to keep in mind....
Sarasota Ron
2020 3740BH-R 2021 Ram 3500
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