Will this work?

[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?

[Pedro_The_Swift]

I think the tight arse thing:p

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

[Warrzone]

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...

[Eevo]

15Ah isnt much.

[Blknight.aus]

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.

[rangieman]

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;)

[weeds]

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.

[Dorian]

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

[Pedro_The_Swift]

and lead is less likely to burst into flames.

Cheers Glen

always good to know;):eek:

[slug_burner]

As an emergency measure it might be worth considering but as an every day solution it will not be cost effective. Batteries have a life an Li ion are still too expensive for the operating life they deliver. At 100% depth of discharge you will get 300-500 cycles at 50% depth of discharge you will get 1200-1500 cycles out of a Li polymer battery. So yes you can do 100% discharge but you will do it for about a year if you do it every day before you need to replace them. Tradies just write them off on tax and buy new tools more often than I would.

[Warrzone]

Well that sorts that out. Was interesting to know, i think ill just keep the dewalt batteries in the work van. interesting to know about the discharge and the effect it has on the life to the lithium, i always just run my batteries down until the stop in the drill..... thanks everyone!

[LandyAndy]

Cheapest way to get a dual battery is one of those Ark battery packs.Charge it by day whilst traveling from an upgraded ciggy lighter.Then use it at night disconnected from your vehicle's power.Not endorsing this one,but its the type of product Im refering too.
Thumper 75 AH AGM Portable Battery Pack 12 Volt Cigarette Merit Anderson Sockets | eBay (http://www.ebay.com.au/itm/Thumper-75-AH-AGM-Portable-Battery-Pack-12-Volt-Cigarette-Merit-Anderson-sockets-/111737194540?hash=item1a040e482c:g:TuYAAOxy4XNSQp5 K)
When you are ready for a proper dual battery system see Traxide Tim,Drivesafe on here.He makes some really good gear.

[C00P]

I've got one of these (Thumper 75 Ah). Bought it because I needed to be able to shift it around from one vehicle to another in order to run the fridge in different circumstances.
It will run our Waeco for a couple of days easily without any input. We've also used it to light the house through a small inverter during a blackout. A very handy portable power supply.

Coop