battery discharge with aircon on

[V8Dom]

since playing with the dash, and removing the battery guage and replacing with led charge light, and replacing battery ignition light and swapping indicator light and oil warning lights to the new led warnings, ive noticed as soon as i turn aircon on batery voltage reduces and drains

my question is 2 fold.

1/ on the old fords if you had a bulb go on the battery warning light it didnt charge? is ultima wiring the same??? ie if its now led. it might give a wrong reading?

2 has anyone experianced this themselves?

dom

[V8Dom]

Steve_D said:

Yes you do need either a conventional bulb or a resister in the charge light circuit.
If the alternator does not see +12v on this line it will not charge.

Steve

thanks steve ... it seems only evident when i use aircon......massive drain...charging minimal without aircon on... alternator been removed and tested ok

what sort of resistor do you suggest??:::... and where...

in the led warning.... http://www.carbuildersolutions.com/uk/straight-war... which is where the old bulb used to be ....

or the led charge light that used to have a round white ultima gauge? http://www.ebay.co.uk/itm/12v-24v-LED-Battery-Leve...

thankyou... been bugging me for ages......

Edited by V8Dom on Sunday 12th July 23:50