150lt Fridge Run Time on 12 volt 100AH battery...

[Big Gee]

If the fridge is getting the 12 volts while running then that is ok.

Thanks for that Gil,

I would have expected to see well above 12volts & even perhaps low 13's.

I run 5.9mm 2 twin core flex, I use proper wire not SCA 1/2 aluminium 1/2 copper almost wire! At the moment I have not changed any of the wiring on the caravan fridge as yet.

What I have done this time is run the power to the 12 pin plug that supplies the fridge from my 120ah dual battery that is in the tray, I put a relay in that is IGN switched. this battery is charged from a Redarc DC-DC charger.

 

[ElectricGuru]

Hey Big Gee

At 16 amps using 6mm2 cable, this is normal. Bit more info on voltage drop and cable size below...

http://expandasdownunder.com/showthread.php/1016-Newbie-seeking-Anderson-plug-wiring-advise?p=10842#post10842

If you wanted to bring the voltage up, you could either do another run (parallel) with the same cable or replace the cable with a bigger one.

The problem is with electric motors such as the fridge compressor that the lower the voltage, the higher the current draw.

Given the volts/amps you have specified, the fridge is doing what the nameplate says so no real worry.

Enjoy!

Gil