Must be one hell of a ham Sammich he wants to keep coolWhat's your biggest priority? Cold storage or being able to start the motor?
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Must be one hell of a ham Sammich he wants to keep coolWhat's your biggest priority? Cold storage or being able to start the motor?
A fridge will kill the battery in very short order if it is left on when the engine is off. However, in many cars there are power outlets that are not tied to that (or you can fairly easily add one). I havent seen anything on the ford system other than we have a 110 outlet.Just because I am about to leave on a trip with my Dometic fridge in the back of my FJ...
The FJ outlet (yeah just ONE in the whole vehicle) are off with the key out...
How does Ford do it?
That's not accurate- it only draws 1/2 to 1 amp under normal circumstances... a normal car battery in a good state charge can keep the fridge running for over 24 hours. I have kept ice cream frozen for 12 hours in 95 degree direct sunlight on a group 31 start battery with the voltage on the battery still being above 11.7VDCA fridge will kill the battery in very short order if it is left on when the engine is off. However, in many cars there are power outlets that are not tied to that (or you can fairly easily add one). I havent seen anything on the ford system other than we have a 110 outlet.
1 amp is a lot. Do you mean milliamp?Cold storage... I have a jump box... It only draws 1/2 to 1 amp. I just don't want to leave the vehicle unlocked to keep the food cool. Doing the math, the fridge could run for a full day before the vehicle wouldn't start.
1 amp @ 12VDC is not a lot...1 amp is a lot. Do you mean milliamp?
That is the correct way to identify a parasitic draw problem. Battery condition surely affects how it handles a long duration draw. My cars, I have been getting 7-8 years out of a wet cell. My boat gets new batteries (1 Group 31 deep cycle, 2 Group 27 start batteries).. The 30 Generators I maintain get new batteries yearly because they are critical power/Correct me if I am wrong, I am not an expert but .......
I have seen 1 amp draw kill a battery overnight, depending on the age of the battery. I was always taught it should be milliamps, Every car has draw but it is in milliamps. Newer cars have more than older ones. If your battery continues to go dead and you put a volt meter in line with the negative battery term you can see the draw. If it excessive then start pulling fuses until the draw goes away, or goes down to an acceptable level. Now you have found your draw. fix the problem or pull that fuse when you leave the car sit.
I have seen it before. guy has a truck with a sunroof. Bought it new. Starting have a problem where he had to put a battery in it every few years. no one could figure out why they just said it was the junk batteries he was buying. After helping a buddy of mine that knows a lot more than me on this and after about 3 hrs we found the problem. The drain in the sunroof track had gotten plugged with debris and didn't let the water drain where it was supposed to. It found another way to get out, down the A pillar into the inside of the truck and over the fuse box. making all the wires headed into the fuse box green. Think it had a little draw to it.
That is the correct way to identify a parasitic draw problem. Battery condition surely affects how it handles a long duration draw. My cars, I have been getting 7-8 years out of a wet cell. My boat gets new batteries (1 Group 31 deep cycle, 2 Group 27 start batteries).. The 30 Generators I maintain get new batteries yearly because they are critical power/