Page 1 of 1
Stupid battery question
Posted: Thu Oct 23, 2008 8:27 pm
by jim.r
Just got new 12v batteries however when I put the voltmeter across one, it shows 17V, is that OK?
erm . . .
Posted: Thu Oct 23, 2008 9:05 pm
by Nick
.
No.
Not even remotely possible.
I expect the battery in your meter is knackered.
Posted: Thu Oct 23, 2008 9:29 pm
by jim.r
Just changed the battery in the voltmeter. One battery is showing 17v the other 18v
Posted: Thu Oct 23, 2008 9:32 pm
by Ramoth
Just got new 12v batteries however when I put the voltmeter across one, it shows 17V, is that OK?
Should be looking at about 14.4v with the engine running and about 12.8v without. A very good book on the subject is Boatowners Mechanical and Electrical Manual by Nigel Calder
Posted: Thu Oct 23, 2008 9:42 pm
by ash
jim.r wrote:Just changed the battery in the voltmeter. One battery is showing 17v the other 18v
Suggest that you test your meter on another source - the car battery for instance.
Ash
Posted: Fri Oct 24, 2008 8:06 am
by Rowana
ash wrote:jim.r wrote:Just changed the battery in the voltmeter. One battery is showing 17v the other 18v
Suggest that you test your meter on another source - the car battery for instance.
Ash
And borrow another meter and compare the readings from both.
Posted: Fri Oct 24, 2008 8:52 am
by Alcyone
I don't want to teach you to suck eggs, but is the meter definitely set to volts, in the correct range?
Posted: Fri Oct 24, 2008 9:02 am
by Fingal
Waht sir evidently needs is a more intelligent battery. Stupid batteries are a waste of money.
Re: Stupid battery question
Posted: Fri Oct 24, 2008 12:58 pm
by ParaHandy
jim.r wrote:Just got new 12v batteries however when I put the voltmeter across one, it shows 17V, is that OK?
the infamy of this meter has been exposed afore, hus it no?!!
Infamy?
Posted: Fri Oct 24, 2008 2:02 pm
by Aja
ParaHandy wrote:
the infamy of this meter has been exposed afore, hus it no?!!
"Infamy! Infamy! They've all got it infamy!" It's got a certain metre to it..
That what you meant?
Donald
Re: Stupid battery question
Posted: Fri Oct 24, 2008 2:20 pm
by jim.r
ParaHandy wrote:jim.r wrote:Just got new 12v batteries however when I put the voltmeter across one, it shows 17V, is that OK?
the infamy of this meter has been exposed afore, hus it no?!!
no not this yin, this is the one at home not the boat one. I'll have to buy a new 9v for it rather than nick the ones from the smoke detectors
Posted: Fri Oct 24, 2008 5:46 pm
by philiph
Amazing how batteries can keep working when under a metre of water - read this:
http://www.stuff.co.nz/4728317a6011.htm ... s_20081015
Posted: Fri Oct 24, 2008 9:12 pm
by sahona
What kind of meter is it?
Name names, so we know what to avoid.
Posted: Sun Oct 26, 2008 10:07 pm
by trouville
perhaps hes clipped the meter on to the solar panel connections that would read 17v up to 21v??
