Thread: Will this work?

I think the tight arse thing

but its an interesting question,,
the fridge must have some form of voltage control as the car will out/in put up to 14v,,
storage batts are(can be) cheap

aha True, the main thing that got me thinking was the fact cordless batteries are getting better and better, the new dewalt gear is lighter smaller and almost double the AH when compared to the old gen stuff, which got me thinking if those batteries could be used for other tasks.

Not only that the fact i can almost drain these to 100% while still getting strong performance thought the entire charge. and the fact the current dual batteries on the market seem almost old fashioned e.g. you can't drain them to 100% they drop voltage thoughtout the discharge ect. heavy and large in size.

Maybe i should just buy the fridge and see what happens...

15Ah isnt much.

depends on the waco and the low voltage cutout limits. Off the top Id have gone no.

the 12v engles would work on a 15v pack and a set of 7.2v nimihs from an RC car.


my knock off 12/24v fridge gotten on the cheap doesnt care what the voltage is coming in so long as its above 10.5 and below 32v. anything in there is good.

Originally Posted by Warrzone

Gday guys and gals

Im looking to buy A waeco fridge 65L for 4x4ing/camping trips. My question is would a waeco fridge run on 18v DC? because the website says it will run on 12/24v.

My next question is, I've just purchased a dewalt 18v 5ah tool kit with 3 x 5ah 18v batteries. If i made an adapter for the batteries and connected it to the fridge , would i be able to run the fridge for a few hours per a battery?

If the voltage is acceptable it would be interesting to see how long each battery would last.

or should i not a tight ass and buy a dual battery.....

Any thoughts on my idea?

Im thinking it would but not very long . In theory (mine)its like a tank of fuel .
Unless it uses bugger all fuel it wont last long

Er, soooo say if your fridge cycles at 50% each battery would last 2hrs.......than you have to swap batteries over....how long does it take to charge the flat batteries from 12V??? Getting up every two hours at night to swap batteries and the car running all night to charge batteries, great way to spend a weekend away, and k reckon the camper near buy might let you know their thoughts of a car running all night.

If a fridge is going to have problems with questionable supply of power waeco's re the leader of the pack.

It might work but..........totally not sustainable.

5ah @ 18v should be about equal to 7.5ah hours @ 12v. My 45l Waceo is about 12yrs old draws just over 2 amps when used as a freezer in around 30 degrees. (Budget 50ah per day) So if yours draws a similar amount you should get 3 ish hours out of it.

Have a think about linking them up in series so all three are online.
As for why use deep cycle AGM etc, If you were doing it from scratch the lead would be a lot cheaper per ah, Li ion are a lot harder to charge from a 12v automotive system and lead is less likely to burst into flames.

Cheers Glen

Originally Posted by Dorian

and lead is less likely to burst into flames.

Cheers Glen

always good to know