12 volt indicaters

Derek I am after something to look at that lets me know on either my axillary or my cranking battery what charge or life is left in it.

I think thats how to say it.

All the best
Eric

Hi Eric

Our LCD monitor will show you the available capacity in a bar graph.



The bar graph on the RH side drops as the battery capacity decreases.

Regards

Derek.

Derek does it do both battery's at once or do you need 2. How much are they.

Many thanks
Eric

I will send you some infor to your email.

We have a few options.



Regards

Derek.

Hairy what does it tell you and what is the model of it.

Many thanks Eric

Gday,
Ive never even tried to use half the crap on it but from memory its
Volts
inside and outside temp
time
something to do with ice.

Just had a quick look.
Thermo-tech????
Blue...El...Ice..Alert?
Its a real cheapy that has done really well and chances are you would probably never find another one.
Id just go to tandys or your equivalent and take a chance.
Cheers

Eric,

Same thing from Jaycar. XC0116

Thanks ivan

All the best
Eric

Thanks Garth

All the best
Eric

Hi all,

Just a warning about the Jaycar $30-odd clock/voltage indicators. I put one on our caravan batteries and it initialy read about 0.3V low. It has a calibration potentiometer on the back. I suggest you check it against a good multimeter (or preferably a couple of different mutimeters, to be more confident) and adjust if necessary.

Ian

Ian,

Your statement is fair enough mate, but one good thing a cheap voltmeter does is confirm that the Isolator has in fact cutover to charging the auxiliary battery.
The only other way (on my Piranha unit anyway) is to look under the bonnet and observe the indicator light.

Also, it will show you if the battery voltage is "dangerously low" when stationary, regardless of whether the true voltage is 11.6 or 11.3.

Accuracy is hardly a primary requirement in these circumstances.

For $30 I believe they are a good investment.

Thanks Sand man

All the best
Eric

Thanks _gmd_pps

All the best
Eric

Thanks Robnicko I do have a Piranaha duel battery system
I will look into it

All the best
Eric

Eric,
If you have a DBE150 or 180S system I believe the battery monitor plugs straight into it.

Thanks,
Rob

PS : I just use my $16 dick smith multi meter.........

Hi Trev

If your looking to do something at the electronics hobbyist level , check out current (feb 2007) silicon chip mag.

It has simple approach to measure amp hours based on a bicycle computer readout driven by a simple picaxe. Ther exact circuit is for smaller gel cells and panels , and sense resistor would have to be scaled

Robin Miller

(I just use a $40 dollar Jarcar volts monitor as it has low batt volts alarms , and temp sensors which can be placed on battery)