Low voltage cut-out?

[Ranga]

When buying a deep cycle battery off the guys at Springers (12V specialists), they mentioned I shouldn't really let the battery go below 11.6V. So, I'm looking at ways to install an automatic cut-out switch on both my dual-battery and portable battery.

I can get an 11.6V cut-out for my Bushman fridge, but that will only stop the fridge, and not any other appliances such as lights, chargers, laptop powerpacks etc.

I notice Waeco make a 11.6V cut-out switch for their fridges (WAECO mobile solutions (http://www.waeco.com.au/products4.asp?id=86&catId=77&subCatId=78&subCatId2=-1)) and was wondering if I could adapt that to suit.

I'd planned on inserting it within my portable battery box between the battery and the cigarette lighter socket, and also in my vehicle between the dual-battery and the cigarette lighter socket. Note that I have a Redarc dual-battery switch already in the vehicle, and I'm not sure if this has any low-voltage feature.

Would this work?

[weeds]

pretty sure d.ick smith has low voltage cutout kits.......maybe tim 'traxide' does them

[drivesafe]

Thanks weeds and I am working on a 30 amp unit at this very time.

[weeds]

Thanks weeds and I am working on a 30 amp unit at this very time.

cool........running two engel i always at risk of sucking the life out of them

[LandyAndy]

Tim(Drivesafe) did a modified SC40 for my Engel,as engels need a low voltage cut out too.Works a treat!!!!
Andrew

[LOVEMYRANGIE]

My Waeco CF-110 comes with an inbuilt cutoff selectable to 3 different ranges.
On a dual battery setup, shouldn't it switch if the voltage gets to a pre determined level anyway???? If ignition Is off I assumed they either switch to the main or cutoff completely.......?

Cheers

Andrew

[Ranga]

My Waeco CF-110 comes with an inbuilt cutoff selectable to 3 different ranges.
On a dual battery setup, shouldn't it switch if the voltage gets to a pre determined level anyway???? If ignition Is off I assumed they either switch to the main or cutoff completely.......?

Cheers

Andrew

I think the Redarc only cuts out the cranking battery once it hits 12.7V?

My Bushman fridge can also cut out at different voltages, but that doesn't protect the battery if I have other devices plugged into it.

Hopefully the Waeco cutout switch can do the job.

[Utemad]

My Waeco CF-110 comes with an inbuilt cutoff selectable to 3 different ranges.
On a dual battery setup, shouldn't it switch if the voltage gets to a pre determined level anyway???? If ignition Is off I assumed they either switch to the main or cutoff completely.......?

Cheers

Andrew

Unless the new ones are different I think you will find the 3 position voltage switch is only on the smaller fridges. On the 80L and 110L the three position switch is the power saving switch for differing compressor motor thing speeds.

[LOVEMYRANGIE]

Unless the new ones are different I think you will find the 3 position voltage switch is only on the smaller fridges. On the 80L and 110L the three position switch is the power saving switch for differing compressor motor thing speeds.

Ummm, nope. The setting is in the digital display and sets as LO, MED & HI and it's for fridge shutdown as a power saver. Should know, after all, I am looking at mine right now as I get another beer while on holidays and I sell them at work. ;)
The selectable switch at the base is for normal or emergency overide.

Cheers

Andrew

[waynep]

This fridge wiring kit from Waeco has a low voltage cut out ( or so the spec says ) and would be rated at a hgher current than the one you linked to above.
It is 6 mm wire so should be OK for what you want.
Also has a switch so you can choose permanent power or ignition switched power.
$119 but you will get one cheaper at Rays/Anaconda etc on sale.
I've wired a copule of these for mates the kit seems well made.

http://www.waeco.com.au/products4.asp?id=355&catId=77&subCatId=78&subCatId2=127

[p38arover]

Jaycar: Universal Voltage Switch - Jaycar Electronics (http://www.jaycar.com.au/productView.asp?ID=KC5377&form=KEYWORD&ProdCodeOnly=yes&Keyword1=KC&Keyword2=KC)

[waynep]

There's also this which is good because it gives you a reading of charge in each battery
Getting a bit exy though.

DBM4 Battery Monitor / Protector - Battery Monitors - Default Store View (http://piranhaoffroad.com.au/index.php/default/battery-monitors/dbm4.html?SID=2Pl6juvWFmRurtZu7z%2BBRZVXxE8k5blGTJ vGtA%2Bpevc%3D)

[bruiser69]

When buying a deep cycle battery off the guys at Springers (12V specialists), they mentioned I shouldn't really let the battery go below 11.6V. So, I'm looking at ways to install an automatic cut-out switch on both my dual-battery and portable battery.

I can get an 11.6V cut-out for my Bushman fridge, but that will only stop the fridge, and not any other appliances such as lights, chargers, laptop powerpacks etc.

I notice Waeco make a 11.6V cut-out switch for their fridges (WAECO mobile solutions (http://www.waeco.com.au/products4.asp?id=86&catId=77&subCatId=78&subCatId2=-1)) and was wondering if I could adapt that to suit.

I'd planned on inserting it within my portable battery box between the battery and the cigarette lighter socket, and also in my vehicle between the dual-battery and the cigarette lighter socket. Note that I have a Redarc dual-battery switch already in the vehicle, and I'm not sure if this has any low-voltage feature.

Would this work?

Check out Oatley Electronics. They have a dual battery controller kit that can also be configured as a low voltage cutoff Oatley Electronics (http://secure.oatleyelectronics.com//product_info.php?cPath=35&products_id=270&osCsid=c012289e119eb639d7fdc6473ece2295)

I built one to isolate camper trailer batteries from vehicle when stopped & it works well. Charge turn on & turnoff are adjustable as well with 80A capacity.

If you have programmable solar regulator, you can connect load to the LOAD terminals & program the cutoff voltage.
Cheers..B

[Utemad]

Ummm, nope. The setting is in the digital display and sets as LO, MED & HI and it's for fridge shutdown as a power saver. Should know, after all, I am looking at mine right now as I get another beer while on holidays and I sell them at work. ;)
The selectable switch at the base is for normal or emergency overide.

Cheers

Andrew

As I was sure mine was a power saving switch and not voltage sensing I rang Waeco technical help today.

Turns out there are three different versions.

The old type that has the seven lights to set the temperature which is what I have is indeed a power saving motor control selector switch.

There is also a Type A digital readout version which is identified by the 'turbo' button. This one is the power saving motor control selector switch too as above.

Then there is the current Type B readout version and this one is the voltage sensing cutout selector switch. Identified by the 'set' button.

This is for the 80L and 110L fridges. The smaller ones have always had the voltage sensing cutout selector switch.

[Blknight.aus]

Jaycar do a couple of modular kit voltage controller units as do dicksmiths and Altronics.

11.6v gets you maximum life span out of the battery but going down to 11 or even 10.5 is generally more practicable and providing you look after the charging amps and the general condition of the battery is a reasonable trade off between overall life and the number of amps you pull out of them.

Its a buyer beware gamble though some batteries deal with it quite well others pack it in real fast.

[mike_ie]

Jaycar: Universal Voltage Switch - Jaycar Electronics (http://www.jaycar.com.au/productView.asp?ID=KC5377&form=KEYWORD&ProdCodeOnly=yes&Keyword1=KC&Keyword2=KC)

I doubt it would handle the amount of current required to pass through it in a 4WD application mate :(

Here's (http://www.4x4equip.com.au/showProduct/4x4+Accessories/Battery+Chargers+and+Monitors/TS-0026) a nice, simple solution for $85....

[miky]

I doubt it would handle the amount of current required to pass through it in a 4WD application mate :(

Here's (http://www.4x4equip.com.au/showProduct/4x4+Accessories/Battery+Chargers+and+Monitors/TS-0026) a nice, simple solution for $85....

Rated at 40A.

Specs are here (http://www.baintech.com.au/vmchk/12v/baintech-low-voltage-cut-out-40amp).

Mike