Piranha <span class="highlight">battery</span> <span class="highlight">monitor</span> - LED readout
Submitted: Monday, Mar 20, 2006 at 10:51
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Cammo
Hello
I have recently had installed a Piranha dual
battery system including the led
monitor. Each morning when I go to the car (or in fact each time I go to car after a couple of hours idle time), the led readout drops a few lights. On the
monitor itself it has the words "Normal" which spans the first 3 or 4 lights.
My question is this, is this normal ? As soon as I start the car all lights come on. I just wanted to see if anyone else gets this before I go back to the installer.
Thanks
Cammo
Reply By: Peter McG (Member, Melbourne) - Monday, Mar 20, 2006 at 11:43
Monday, Mar 20, 2006 at 11:43
Sounds OK to me. I have the one with a toggle switch to
check main and aux batteries. It shows 3 green bars when at rest, 8 bars when running and the main one drops to one on starting.
Check with a voltmeter if unsure.
Peter
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Follow Up By: hz75 - Monday, Mar 20, 2006 at 13:56
Monday, Mar 20, 2006 at 13:56
mine does the same its normal
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Follow Up By: Cammo - Tuesday, Mar 21, 2006 at 09:04
Tuesday, Mar 21, 2006 at 09:04
Thanks Peter
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Reply By: F4Phantom - Monday, Mar 20, 2006 at 18:29
Monday, Mar 20, 2006 at 18:29
I hope this is going to be the answer to what you mean as you may already know this.
The
battery at rest is 12.5 to 13v so the charger puts in around 13.5 - 14v or even up to 15v. While on charge the
battery will read the full 13.5v (it will read the output of the charger or a bit less) and will stay like that for a little bit. But a charged 12v
battery at rest with no input is somewhere between 12.5 and 13. So less than the car charger. This means it cant hold the higher charge for long and reverts to it's at rest voltage over time, in fact if you put a multimeter on it as soon as you turn off the car you will see the biggest drop with in a minute or less.
AnswerID:
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Follow Up By: Cammo - Tuesday, Mar 21, 2006 at 09:04
Tuesday, Mar 21, 2006 at 09:04
F4Phantom
I did not know this, so tahnkyou for explaining it to me, it now makes sense.
Cammo
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