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 07-12-15, 13:20
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How long does your battery last uncharged?
I may have a problem, I have now had my battery replaced under warranty as the first one died, The new one lasts approx one and a half weeks before it does not have enough charge to start the bike. the dealer says all modern batteries are crap and this is normal. My bike is a 2013 model with a factory immobilser as standard. I do have an oxford optimser 900 but still think a bike battery should last longer than this uncharged. I am worried as if next year if i ride to spain and have a weeks beach holiday the bike may not start for the return trip. the voltage had dropped to 10.7 volts after one and a half weeks. Your thoughts please.
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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights 
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07-12-15, 13:44
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I leave mine for months at a time and never charge it. Starts first time1 Now I have a n other smaller bike thgs period could be longer, never had a problem. Bike is '09 and still on original battery and I do load it up with 'extras'.
Steve.
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If I'm not working, I'll be 
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07-12-15, 15:50
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Quote:
But, maybe you should check for some drain? Just to be sure. |
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07-12-15, 17:45
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Nice of the dealer to fill you with confidence....if he thinks they're that crap why doesn't he do something about it?
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07-12-15, 18:02
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This is most definitely NOT normal.
I still have (crap  ) OE Yuasa battery on my 2008 XTZ and it starts first time every time without fail even when left for several weeks during the winter. I do put it on an Optimate now and again on the rare occasion its left for a month or more in the winter.
As cca suggests, check to see if there is a spurious current drain when the bike is left standing. When the immobiliser's LED is flashing the current drain should only be a few mA and when it's in stand by mode (not flashing) it will be even less. Yours must be more than this? I see you have a USB charging point fitted - you do realise that most of these draw current even when nothing is plugged into them so really need to be ignition switched or have some other means of turning them off when not in use. Is it connected direct to the battery? To check for current drain, disconnect the positive terminal from the battery and connect the probes of a multimeter set to read 20A between the lead and battery post. Gradually one stage at a time check the display and if no reading is present then reduce the setting in steps from 20A down to 500mA each time checking to see if there is a reading. When you get a reading stop and make a note of it and let us know what it is. DO NOT turn the ignition on at any point whilst doing this. DO NOT take a short cut and start at 500mA either in case there is a big current drain you are unaware of. TBH, the above test should have been the first thing any good mechanic/dealer technician would have done when you first took the bike in with battery problems. They should have also checked the charging current and voltage too - did they?
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Last edited by Pleiades; 07-12-15 at 18:07. |
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07-12-15, 19:09
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I never charge my OE battery. Even during winter time when the bike stands outside for months.
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08-12-15, 10:47
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Not been here forever.... however, on reading this, I was astonished at being able to fire up my 2008 XTR after sitting for more than 12 months in an unheated garage with temps down to -10C last winter.
I have no optimate connected and it is the original battery. My Ducati 749 on the other hand, doesn't last more than 3 weeks, even in summer! I think I have spent more on batteries than fuel! 
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Keyboard Adventurer 
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08-12-15, 18:17
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battery life
Quote:
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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights
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08-12-15, 19:01
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battery life
have checked the current between pos battery and USB pos terminal got a reading of 35.7 mill amp, spotlights are a very recent addition and this problem I suspect has been since the bike was new before any mods were added.
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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights
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