Battery problem

[Sky99]

Last week for not riding my bike for 2days, went to my bike 2 days later.. didn't managed to see netural light..

 

Think it's batt is flat, so ride down to Unique and changed a new batt..

 

Few days later, want to turn on my bike, dont have netural light again.. Like ride awhile den got batt liao, after awhile no netural light again..

 

 

Riding 125z btw

[altya]

Rectifier or the magnetic coil have issue? Seems to me like the batt cant hold charge... Got any additional accessories that might be sapping the electricity?

[ben1112]

Rectifier or the magnetic coil have issue? Seems to me like the batt cant hold charge... Got any additional accessories that might be sapping the electricity?

 

^Agree. But at this juncture don't even need to consider charging issues(rec/coil). Because if the battery is full when left to park and flat the next day it could only mean there is a short/drain in the system. Because battery don't normally go flat on its own in a day or two.

[Sky99]

How much to change rectifier or magnetic coil?

[Silent Hunter]

Got off everything or not?

 

Like after market LEDs, they can sap electricity if not connected properly.

Mine got stay on before even after engine was off...

 

Battery goes off very quickly.

[ben1112]

How much to change rectifier or magnetic coil?

 

Already say its pretty unlikely to be rec/coil problem. Likely to be short circuit/drain. Put multimeter between batt and ground to look for current drain. You got multimeter?

[ben1112]

repost........

[Sky99]

Already say its pretty unlikely to be rec/coil problem. Likely to be short circuit/drain. Put multimeter between batt and ground to look for current drain. You got multimeter?

 

You mentioned battery normally don't go flat in a day or two..

 

mine lasted like 3-4days.. what you mean is it check the voltage of the bike?

[Hydher]

A good shop will test if the battery can hold a charge before changing it.

 

2 issues.

 

1. A drain

2. Your charging system isnt working.

3. Unlikely, a faulty battery.

[ben1112]

You mentioned battery normally don't go flat in a day or two..

 

mine lasted like 3-4days.. what you mean is it check the voltage of the bike?

 

Not check voltage. You get a multimeter, set it to current testing mode, undo "-" side of the battery and hook up one end of multimeter lead to battery "-" terminal and the other end to the "-" of the wire that used to goto the battery. Your multimeter should read very little to no current reading.

[esystemssg]

You mentioned battery normally don't go flat in a day or two..

 

mine lasted like 3-4days.. what you mean is it check the voltage of the bike?

A few possibilities ...

 

1) Faulty rectifier is regulating the charge at too low a voltage, so the battery isn't fully charged - then it drains out fast

2) Electricity is leaking due to badly wired LED's / after-market horn, clutch cable rubbing against the harness, wiring bitten by rats (yes it happens) etc

3) Faulty ERP IU leaking current

4) Most common - wiring bypass done by mechanic to connect the Rectifier (+) directly to Battery (+). This improves performance when riding by a bit, but causes a slow leak over a few days to a few weeks.

 

Our suggestion is to go back to Unique and have them "catch the ghost". Alternatively, we can help you to trace the wiring issue. You may drop us a PM to arrange an appointment.

[aswin]

rectifier or alternator problem