No start or turn over. Battery registers 13 volts. Stopped for
Battery checks out at 13 volts with no draw. Just stopped for a moment and shut motor off. When I turned key on and starter began to turn, all of a sudden lost all electrics. Fuses are all good and ignition switch is good. Power is getting to ignition switch by tracing with volt and ohm meter. All connections seem good. When I can get everything back on (instrument lights) and push starter button, only hear one click from relay and all indicators go off for several minutes while battery voltage drops to 5 volts. Tried powering starter directly from battery but does not react. Is it starter or relay or battery or all three?
Re: No start or turn over. Battery registers 13 volts....
I'm a VFR guy. The voltage rectifier regulater is notorious for failing. Depending on the year, the voltage should read between 13.5 -16 volts at the battery, running. Too much or not enough voltage points to that weak spot. There are other things that can go wrong, but the rectifier is suspect.<!-- from fixya rte -->
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Electrical issue. The heat or air draws more current and the electrical system probably drops voltage below the threshold the electronic control module can handle. First check that the Alternator is charging correctly. When running the system should have 13 to14.7 volts measured at the battery. If you turn on the heat/AC and it drops significantly you have a current draw issue (most likely bad fan motor, or short) If the voltage is below 13 volts when the car is running your alternator is likely bad.
if the vehicle is running and and only registering 12.3 volts your alternator/generator or voltage regulator is bad, (it should read 13-14 volts on the battery while running. sounds like you need to check that your battery connections are clean and tight both at the battery and starter/ solenoid, Ground, (usually on engine block) follow negative battery cable. also Load test the battery (Autozone will do it for free most places) because, as I learned the hard way, that even though a battery may show the proper voltage it may not be able to support the amperage draw of starting and running the engine anymore.
try using a volt meter after you shut it off and watch the meter and see if it drains,which would mean something is still drawing power when the car is off,then try removing fuses one at a time too possibly narrow down where the draw s coming from.if the battery is new then it should not have a bad cell which could cause it too drain.
I have a thought you may try testing your battery voltage with the car turned off .It should read 12 volts or higher if not charge battery than check again if battery is lower than 12 volts after charging replace battery.If 12 volts or higher start engine check voltage on battery again it should be 13 volts to 14.5 volts not higher if voltage readings are lower than 13 volts or higher than 14.5 volts replace alternator.
check for voltage at the battery with the engine running. You should see 14 plus volts. Now turn on the lights, bower motor, and whatever else you can to put the maximum draw on the battery. If the voltage drops below 13 volts the alternator is bad.
You need to fully charge the battery and load test it, then check the charging system and alternator drive belt for tightness. do not remove cable when running or it can harm the charging system...ok on older cars, no longer good practice. Quick check of charge system can be done with volt meter across the battery. Volts should read between 13 and 14volts and not drop over time. With all lights, heater etc on volts should be better than 12.5 (usually above 13 and again, not drop with time.
check to see if its charging as you ride,, Keep in mind that Harleys hate start and stops,, once you start them they draw alot of power from the battery,, and should be ridden for a long time to recharge the battery ,, with the post connections hooked up, use a volt meter to check the charging,, it should read between 13-15 volts ,, if not you have a regulator problem
Disconnect the - lead from that battery, Repower the charger. The LED should be green. If it stays RED, charger defective.
Reconnect the - lead to the battery, measure voltage when charger is on. Should be between 11.5 and 13 volts. If OK, replace the battery. If lower than 11.5, check for charger cable connections OR for a connected load ( power drawing ) of more than 10 amps.
When it is running,put a volt meter across battery terminals. You should see 13 + volts if alternator is working. Also put an ampere meter in series with a battery cable,key off, engine off, and you should see less than 40 to 50 Mili-Amps. If more,start pulling one fuse at a time,untill you find the circuit that is draining the battery