150cc TaoTao battery problems By gerryb (Read 739 times)

[gerryb]

My daughter has a 150cc TaoTao scooter, it has been pretty dependable here in Florida, but it now is killing batteries all of the sudden? we have a charger and can bring the battery back to life, we just bought a new battery and it ran for 3 days before dying. what tests should i perform to determine what the charging problem is? she drives it at least 45 minutes per day, so if it were charging properly we would have no problems.

Please Advise.

I have no problem bringing it to a shop, but we have had very little luck in finding reliable people for repairs? and i have worked on many engines over the years, so i feel i could do just about any repair, with a little educated advice.

Thank you!

[Alleyoop]

If you know the battery is good and does not have a bad cell, then it would be the Regular/Rectifer or the Stator one of the two.
So start it up and hook up the volt meter to the battery and it should read around 12.5 12.7 or so and then REV up the motor to around 3-4k and the voltage if it is charging should climb up to 13+ volts.
If not then you know it is one of the two parts I mentioned. You can test the STATOR and see if it it putting out enough to the Regulator/Rectifier and if it is then you know its the R/R of its not then the stator is the culprit.
In the tech section there are HOW-TO test the Stator to point you to the culprit.
Alleyoop