Testing eletrical with car battery

[wild2crazy]

Looking on testing my charging system (stator and regulator/rectifier).

Would using a car battery in anyway give me false reading from a digital multimeter?

Car battery will not be hooked to the car just to the motorcycle battery

Old Battery was 6 years old figured got a little dimming lights at low idle so i grabbed a new batttery toss it in bike starts fine runs fine no dimming light.

I come back to the bike after month decide to turn her over to cycle gas and no power so inspection of battery reveals sulfation which equals death

I know. charging the new/dead battery only brings it 49% which when left unhooked slowly looses charge by just sitting there.

Any other thoughts possible charging malfunctions i should have a look at ? I am going to pull the readings from the multimeter tomorrow.

 

[VFR.CBR]

No problem at all.
So long as the batteries are of the same nominal Voltage (12 Volts), there is no problem to run the batteries in parallel.
If you can; check the stator Voltage and current while the engine is running. All 3 legs should be equal, Voltage could be anything up to 15 Volts, current should be ~ 20 Amps (on 2006 GSXR)

 

[frekeyguy]

No problem at all.
So long as the batteries are of the same nominal Voltage (12 Volts), there is no problem to run the batteries in parallel.
If you can; check the stator Voltage and current while the engine is running. All 3 legs should be equal, Voltage could be anything up to 15 Volts, current should be ~ 20 Amps (on 2006 GSXR)

Voltage should be 60V per phase, 55V-6oV will do ....

 

[wild2crazy]

thanks for the info boys i got the service manual for replace requirements
hopefully i can find the culprit