Question about 2006 Harley Davidson XL 1200 R Sporster Roadster

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Red light keeps comming on and battery goes dead.

Red light comes on and battery goes dead. what charges the battery and how to check it?

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Alternator and stator....put a voltmeter on the battery - it should read about 12- 13 volts. Then start the bike.... when its running, the volts should increase.... if it doesnt....your charging system isnt working.

Posted on Jun 27, 2009

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Posted on Jan 02, 2017

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New alternator new battery but battery still not keeping charge what else could it be


What do you mean not keeping charged ? Battery goes dead over night ,while driving the vehicle ? Could have a parasitic drain on the battery while vehicle is parked . Do you come out to start the vehicle in the morning an the battery is dead ?

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1994 Trooper. Stopped at red light. Suddenly all the dash lights come on and then goes off and vehicle dies. Won't start. Would the problem be the alternator?


Well the only thing the alternator does is keep the battery charged.
It would not kill the engine unless it locked up and would not allow the belt to turn.
Is the battery dead when it will not start, or will it crank and not start ?

Sep 14, 2015 | Cars & Trucks

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Red charge light keeps blinking. does that mean the battery is dead?


Your user manual should provide some info. If not, consult with Radio Shack direct. I'm not familiar to this product so I can't tell you if the charger is defective or the battery needs replacement.

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Battery light alternator


The Charge lamp comes on with the Alternator fails to keep battery charge going. (lots of way to fail, and ALT Is 100% good) it's a system. each part of it must be good, end to end.
so...
i put my voltmeter across battery, i start car, i see 13.3 to 15vdc, alt is good.
no? , i see now, 12.2v. ALt is dead, (i didnt say bad) and battery is sightly discharged, 12.6v is charged. (key off, rested voltage)
This 12v tells me the ALT is shut down. only why is the question.

how can any charge system fail,
bad battery tops the list here, they LOVE to fail.
1: belt slips.
2: belt missing
3: bad alt.
4: bad wires to ALT . (corrosion on any wire or lug)
5: fuses blown , any listed below.:
your alt is not an ECU controlled, alt ,its 100% self contained

did you ever remove the ALT and blow the 100 amp fuseable link
the first step of any alt pul, is the pull the NEG, battery lug or BOOM.

im logged in to alldata.com so can you.

and what do i see.
a 5 wire ALT. one is the frame ground, so it must not be rusty or..... it fails. frame to engine block. no rust here.

wire L , yellow.goes to dash LEDs (alt failure idiot lamps) (this works)
wire. S white goes to ALT 5a fuse, is it blown?
wire :B B/G color, goes to the 100 amp link fuse. (blown>?)
wire IG Red-white, goes to a fuse marked 10A gauge.

i think the IG wire is the voltage sense wire.
no sense, no charge. I think the whole I/P dash cluster goes dead when this fuse blows.

The S wire is the boot strap voltage sense, it wakes up the regulator .
if open , the reg stays asleep, as does ALT.
Alternators can not self start, the regulator has boot strap device
that cures that. called self excitation. so this wire is critical.
All wires except the L wire is critical. in this case.

the B wire is the big wire, it charges the battery . 50amps or more..

any of the 5 paths open , kills the ALT dead.
The REG inside the ALT can also shut it down.
eg: battery bad, with huge cell resistances. total.
eg: overvoltge for any reasons. including attempts top run car with no battery, (dont ask)
eg: over current (battery cells 1 to 6 shorted) or 25 KC lamps added.
eg: over temperature shut down.

that is about it.







Dec 31, 2013 | 2003 Toyota Matrix

1 Answer

Bluetooth wont charge or power on. when charging the red light comes on. once disconnected from charger it wont come on


Indicator Lights:
1.Headset Status Headset Indicator Light
2.Powering on Steady blue, then intermittent flashes
(changes to standby mode)
3.Powering off Red appears and goes off
4.Standby Blue intermittent flashes
5.Charging battery Red solid light. Light indicator turns off when
battery is fully charged and headset is off.
6.Low battery Triple red flashes
7.Pairing mode Blue/red alternating flashes
8.Missed call Purple flashes. Press the call control button
to cancel flashing light.
9.Incoming call Triple blue flashes when ringing.
Power on and off:
1.Turn on the headset Press and hold the call control button until the
indicator glows blue. You will hear ascending
tones.
2.Turn off the headset Press and hold the call control button until the
indicator glows red. You will hear descending
tones. When power is off, indicator stays off.
If none of this is helpful then it may be that your battery is dead, if that is the case then you will need to replace the whole headset. The battery's are not replaceable.

Good luck from Headsets Direct!

Sep 21, 2011 | Plantronics Explorer 220 Bluetooth Headset...

1 Answer

Battery goes dead but when checked they say its still good but needs charged. Charge it and it goes dead again


Did they check the alternator? You also might have a drain on your battery. You can remove the negative cable from the battery, take a test light and connect one end of it to the battery (negative side) and touch the other end to the negative cable you removed. If the light comes on then you have a drain on your battery. You could then pull fuses one at a time until the test light goes out and that one (system) is most likely your problem.

Jan 30, 2011 | 2007 GMC Acadia SLE

1 Answer

Red battery warning light


Have the alternator and battery checked.
If the alternator isn't charging, that would cause the light to come on.
If the battery is bad and not holding a charge, do to a weak or dead cell, that would also cause the light to come on.

May 05, 2010 | 2002 Volvo S60

2 Answers

Battery went dead,charged it back up now it won't stay running and a red light with a key comes on


if the battery goes stone dead on these vehicles, your anti theft module (SKIS module) loses its programming. unfortunately, the only way to fix this is to have the vehicle towed to the dealer an reprogrammed. call your local dealer and consult them on their particular procedures. good luck!

Apr 29, 2010 | 2002 Jeep Grand Cherokee

1 Answer

Seems to charge but then wont come on


Sounds like you bought a defective battery
You can test for this by removing the battery and holding the power button for 15 seconds. This will restart the charging cycle as if the battery were new. If it still goes red get a refund and a new one.

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