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Arctic Fox 03-10-2019 12:42 PM

Sudden increase in drain on batteries
 
Good morning,

I have just bought a 2014 Par Car with 8x6v T105's that were installed in February 2017.

The batteries were fully charged and I drove nine miles with the charge meter rarely dropping below the line between green and white.

Suddenly the needle went almost into the red zone and stayed at that bottom end of the green for the final mile home.

I plugged in the charger and it showed the batteries to be 80% drained (after driving just ten miles) but then they took less than an hour to charge fully.

After charging, I tested the voltage across each battery and they were all around 6.7v. I also checked the water levels and they were all okay.

Three questions:
1) Why would two year old batteries only give me ten miles of travel?
2) What could cause a sudden increase in battery drain?
3) Why were they so quick to fully recharge from being 80% discharged?

Thank you.

TOTV GOLF CART EXPERT 03-11-2019 07:45 AM

Quote:

Originally Posted by Arctic Fox (Post 1631500)
Good morning,

I have just bought a 2014 Par Car with 8x6v T105's that were installed in February 2017.

The batteries were fully charged and I drove nine miles with the charge meter rarely dropping below the line between green and white.

Suddenly the needle went almost into the red zone and stayed at that bottom end of the green for the final mile home.

I plugged in the charger and it showed the batteries to be 80% drained (after driving just ten miles) but then they took less than an hour to charge fully.

After charging, I tested the voltage across each battery and they were all around 6.7v. I also checked the water levels and they were all okay.

Three questions:
1) Why would two year old batteries only give me ten miles of travel?
2) What could cause a sudden increase in battery drain?
3) Why were they so quick to fully recharge from being 80% discharged?

Thank you.

It’s hard to say what is going on with out looking at the cart. First step would be to check the charger make sure it is working properly. Next step would be to run a discharge on the batteries. So we can check the run time. If the run time comes back low we would run a load test on each individual battery to see what battery is bad.

There is know way to tell how the previous owner took care of the batteries. If the water was not checked on a regular bases he may have fried the batteries.


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