I need the brains trust.

pinball wizard

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So you know we bought the WR-V in December.

Its got 33000km on it.

Recently it does this weird thing where it acts like it has a dead battery.

However, resting voltage is 12.8, and running voltage is 14.5.

Wtf?

Other than that its a fantastic wee ivtec.
 
14.5 is your reading from the alternator
Not the battery
Resting at 12.8 means nothing when there is no load on it
 
How?

The 14.5 I get is with a voltmeter on the battery terminals with the car running.
Connect something to the battery when the car isnt running and see how far the battery drains in a short space of time
A camping fridge for example

Yes, the battery will show 14.5 volts when car is running coz that is the voltage coming from the alternator
 
Ignition on, engine off, switch on headlights for a few minutes and measure.. you just need a load while the battery is not getting charged by the alternator..
Battery sits on 12.14. After a couple of minutes I get 12.09.

What does that mean?
 
Battery sits on 12.14. After a couple of minutes I get 12.09.

What does that mean?
581fb82189bac46fc1f4ecdbb9147736.jpg
 
Most tiger wheel and tire places will have a battery tester, which places the battery under load , and can determine the health of the battery
 
Most tiger wheel and tire places will have a battery tester, which places the battery under load , and can determine the health of the battery
Went to twt after the first time it happens and they say is perfect. Now it happens daily.
 
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