Drove it for 2 hours yesterday, after a 3 hour drive the day before, 14.6 was the lowest number at any time...
can I check the engine bay battery posts first thing in the morning and get a fair reading?
yes, I understand the car will be awake...
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Drove it for 2 hours yesterday, after a 3 hour drive the day before, 14.6 was the lowest number at any time...
can I check the engine bay battery posts first thing in the morning and get a fair reading?
yes, I understand the car will be awake...
It is actually better if the car is awake, as this will apply a moderately small load to the battery.Quote:
Originally Posted by Pedro_The_Swift
This load is not that big but it will give you a far more accurate voltage reading.
Doing what is called an OPEN CIRCUIT reading, this is when no load is applied to the battery, is not a good way to take a reading because the battery can show it is fully charged, but just a small load can drag the voltage down.
So again, the small load you will have when the car is awake is a good time to check the battery voltage.
Can I also suggest that after taking the first reading, turn you ignition on, but do NOT start the motor.
With the ignition on, take another reading at the battery.
The second reading should be no more than 0.2v below the first reading.
if it is much more than that, this would indicate the battery may be fully charged but is low on capacity.
Let us know your findings!
Hmm, V taken from under the bonnet-- around 12.14
2nd reading is 11.8
Hmm battery is maybe 11months old...
Before you do anything, measure the voltage of a battery in another vehicle. Just to make sure your volt meter is OK.
It probably is and if so, get your battery checked where you bought it.
BTW if your battery is stuffed, it would be the reason your voltage was high all the time.
Yes,, that makes sense Tim...
but why would it test ok?
Di had to drive it 100kays to Perth yesterday, have arranged another company to check it on her way home,,
might just replace it anyway...
the battery was purchased last Christmas in Port Lincoln SA....
After your next long drive, try disconnecting the Negative ( - ) lead off your cranking battery and leave it over night.
Next morning measure the voltage before you reconnect the lead. Measure again after connecting the lead and once more with the ignition on.
This test will rule in or out, if you have a drain in the car that might be discharging your battery.
The fact your battery is still able to start your motor when the battery is so low, sort of points to something other than a dud battery. The test above should give your a more accurate finding, before you go replacing the battery.
Latest news from Perth--- battery is not a stop/start AGM, some cheap lead acid thing.. aparently? This from Di and mobile battery guy over the phone....
Pouring rain here at Seabird...
"Old" battery
And new delkor..
redirect here please
https://www.aulro.com/afvb/newreply....8071&noquote=1
sorry Bails...
OK my LIPO batteries have been trouble free. I have also added a solar panel to my roof platform and via victron controller can now see what is happening re charge. After discovering the huge space on the LHS rear I am thinking of adding another battery for my van. I am thinking run the DC to DC charger from the starter battery to charge new LHS LIPO , the solar charges the starter LIPO , and then run the Anderson Plug from the new LIPO battery. My figuring is I will have about 180 AMPHR with the 60 amp and new 120 amp batteries connected this way? Is my thinking sound?