hi
i have the smarty today now i make ecm update.
now the voltage going up to 14,9 volt on idle.
is normal?
weh have 23 C Fahrenheit outdoor.

thanks
chris

 

should be fine. Just your truck charging your batteries after the grid heater is kicking off, and from cranking the truck...

 

hi the grid heater have 2 min? ist this correct?
i have approx 2 min 13-14,9 volts an then going to 14,8 volts constantly.

chris

 

I would call that normal too. You should be able to see the headlights dimming (if on) when the heater cycles also.

 

yes the heads lights dimming approx 2 min.

 

the maximum to charge e batterie actual 2,45 for one cell.
we have 6 cell 6x2.45 V = 14.7 V
is 14.9 not to high? ore normal with this outdoor temperatur?

chris

 

Sounds normal to me

 

ok
i think also.

thanks

chris

 

today i have 15 Volt.

 

I would verify what you're actually seeing with a VOM (volt meter). 15v charging after starting is ok for a short period of time.

MikeyB

 

i have verify with fluke ,the engines ist hot

 

Once the batteries are fully charged the voltage should settle down to around 12.7-13v depending on the load.
My truck voltmeter is above 14v also after starting the truck and takes a while for it to drop back down.

MikeyB

 

yes i have 12,7 volt the truck is off. but 15 volt when i have start the truck.