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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
Joined: 16 Aug 2013 Karma :
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Posted: 13:09 - 10 Mar 2024 Post subject: Battery drain issue |
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So, bought a battery because the old one died, stranding me in Bristol a few weeks ago.
On arrival, it couldn't start the bike, it was saying 12.3V. Charged it up and the bike started with no issues.
Went to use the bike a couple of days later and it wouldn't start again, battery only showing 12.5V. I persevered but it consistantly would not work, after being left overnight, but if charged that day was fine.
Supplier sent another, that was dead on arrival at 12.1V.
They both went back and a new one sent to me (different make) which was on 12.6V on arrival, was unable to start the bike and after 20 seconds of cranking was at 12.3V.
Started the bike once charged but after being left overnight can't start the bike, same before and after voltages same length of cranking.
Draw by the bike for clock etc is 20mA but the battery wasn't even connected when left overnight.
I'm a little loathe to think its another duff battery but I can't find anything wrong with the bike. It starts on the button with a freshly charged battery.
Any ideas? ____________________ trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050 |
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Easy-X |
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Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
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Posted: 14:42 - 10 Mar 2024 Post subject: |
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Two properties of a battery one would be interested in: can it supply ~12V over a long period at a low current drain (normal running) and can it supply a shed-load of power for a few seconds (cranking current.)
So far, so obvious. I would suggest either the batteries are not chucking out the power they should or for some reason the bike is asking for more power than it should. That a completely topped-off battery can start the bike but an even slightly discharged battery cannot points to the bike demanding much more power than it should to crank over, I would say.
Before I changed the (probably the 2016 OEM) battery on my XSR I'd occasionally have trouble starting it, e.g. left for >1 week. In the borderline cases where you could hear it struggling but it did manage to start the battery voltage was between 11~12V which is much worse than what you're encountering.
I'd be thinking about the starter motor, starter solenoid and starter switch. ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
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stinkwheel |
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stinkwheel Bovine Proctologist
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Fizzer Thou |
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Fizzer Thou World Chat Champion
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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WD Forte |
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WD Forte World Chat Champion
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Fizzer Thou |
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Kawasaki Jimbo |
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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Fizzer Thou |
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stinkwheel |
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stinkwheel Bovine Proctologist
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A100man |
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A100man World Chat Champion
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Posted: 17:39 - 11 Mar 2024 Post subject: |
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Fizzer Thou wrote: |
Years ago I did have a problem on a car with a voltage reulator that was allowing the output of 17vdc to cause the battery to overcharge and pop off the plugs,spraying acid all over the area under the bonnet.The battery itself suffered as a result. |
Yep that'll do it, also excessive sulphating, often due to to undercharging I read . I still doubt though that a normal working battery charger operating at 14.5V will damage a battery even if the current rate exceeds the 1A guide. In service they can pull more than that for sure. ____________________ Now: A100, GT250A, XJ598, FZ750
Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600 |
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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