Re: Charging System CB750 Custom

On Jul 17, 1:38 pm, "lwatter...@xxxxxxxxx" <lwatter...@xxxxxxxxx>
wrote:
On Jul 17, 10:16 am, "." <Rhiann...@xxxxxxxxx> wrote:

On Jul 17, 5:39�am, "Who Me?" <hitchhi...@xxxxxxxxxx> wrote:

Yes, if you ever see a voltage across the battery higher than 13.5, yet it
is dead the next morning, the odds are excellent that the battery itself is
TOAST.

You can see 14.5+ volts across the battery terminals when you have
just
disconnected it from the charger.

Then the voltage will settle down to 12.2 to 12.8 volts in the next
half hour.

That doesn't mean the battery has significant load carrying capacity,
though.

When the motorcycle is running and I check the battery with a
multimeter it is only registering 11.8 and will not go any higher even
at 5000 rpm I replaced the Regulator/Rectifier 2 weeks ago with a new
one and it was fine registering the right amount of voltage now its
back to discharging do you think it could still be a bad battery or
something worse?

Wonder if you managed to fry your brand new Regulator/Rectifier.

What does "registering the right amount of voltage" mean ?
Did you see the voltage go up as the engine charged the
battery ?

If the battery will take and hold a charge from a battery charger,
then it's not the battery. If it won't take and hold a charge, then
it is.

If the battery was bad would it still register the correct amount of
voltage across the terminals while running?

There's no one "correct amount of voltage". It should read
at least 12.5 volts with the bike shut off and maybe 14 - 14.5
volts with the engine running fast.

I don't think I was clear in my earlier post about my problem I
apologize i posted right before i went to work this morning and was in
a rush,Thanks to all that have posted I'm leaning toward bad battery
but I wanted to get other opinions..

Places that sell batteries should be able and willing to load
test your old battery. Ask them to do this. If the old one's still
good, then you're wasting your time and money by replacing it.

You could also have an alternator or Regulator/Rectifier or
wiring problem. You need to run a systematic troubleshooting
proceedure. Also, be sure to sacrifice at least one chicken
whenever you're troubleshooting any electrical problem.




Thanks
everyone,Larry

.

Relevant Pages

  • Re: MFJ-259Z
    ... I checked the voltage on the two pins. ... I checked the voltage coming from the charger and its 18 volts. ... I checked the voltage from the + side to the - side of the battery pack ... jumper inside the unit is on for charging. ...
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  • Re: MFJ-259Z
    ... I checked the voltage on the two pins. ... I checked the voltage coming from the charger and its 18 volts. ... I checked the voltage from the + side to the - side of the battery pack ... jumper inside the unit is on for charging. ...
    (rec.radio.amateur.antenna)
  • Re: More battery/electrical drama
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  • Re: MFJ-259Z
    ... I checked the voltage on the two pins. ... I checked the voltage coming from the charger and its 18 volts. ... I checked the voltage from the + side to the - side of the battery pack ... jumper inside the unit is on for charging. ...
    (rec.radio.amateur.antenna)
  • Re: MFJ-259Z
    ... I checked the voltage on the two pins. ... I checked the voltage coming from the charger and its 18 volts. ... I checked the voltage from the + side to the - side of the battery pack with ... jumper inside the unit is on for charging. ...
    (rec.radio.amateur.antenna)