Hello I left my key in the on position on my cbr 250r and it's dead - Honda CBR250R Forum : Honda CBR 250 Forums
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post #1 of 15 Old 10-13-2017, 02:00 PM Thread Starter
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Hello I left my key in the on position on my cbr 250r and it's dead

I had to leave for work and I'm worried that not tending to it right away could ruin the battery? Also, what do you guys suggest I use to recharge the battery?
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post #2 of 15 Old 10-13-2017, 03:33 PM
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yes, leaving it turned on will drain your battery. Virtually any 12volt battery charger will work fine. good luck.

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post #3 of 15 Old 10-13-2017, 04:00 PM
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Motorcycles use low amp-hour batteries and are best recharged at a lower rate than a car battery. I have had very good luck with a Battery Tender Jr. (usually on sale someplace for ~$25) which charges at 0.75 amps. I even use it to top off my Miata's battery.

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post #4 of 15 Old 10-13-2017, 08:50 PM
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also left key in overnight, next morning nothing,
clutch started [nice sloping street] in 2nd,
kept revs up [over 2000rpm] when stopped,
continued riding about 15mins to location,,
parked on a sloped backroad..
[yoga] then clutched started her again same..

repeated that sequence about a week before
using starter button,, then she kicked over
and daily general riding was enough..

[didnt have a charger or similar options]

anyway, for this sort of battery drain
it will or can be clutch started..

if not familar with clutch starting/push starting
best start on a long slope if possible, steeper the better,
ignition on, no throttle, push alongside [high side,
left hand drive here so for me thats brake lever side]
alternatively have someone give you a good push
to running while in the saddle, then drop clutch,
in second, perhaps 3rd on the flat..

best to jump on and drop clutch as your weight
drops into saddle, or if pushed, stand up on pegs
then drop weight down as you drop the clutch..
[weight drop to back of seat helps turn engine]
as soon as it kicks over give it throttle,
keep revs up, 3-5000rpm if then stopping,,
then proceed as for a normal ride except
keep revs up when slowing/stopping..

after riding [the longer the better]
park on a downslope [longer the better]
altho a sloping driveway should do it,
the longer road allows for multiple
attempts if you dont get it first go..
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post #5 of 15 Old 10-14-2017, 04:18 AM
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Along the same lines as what Shisoshin said, get a jump start from another vehicle and then go for a long ride.
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post #6 of 15 Old 10-14-2017, 05:06 PM
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for me it was 5.30am starts, nobody around,
no access to vehicle/batteries or chargers
so clutch starting [decades of carb bikes]
seemed natural response [no f.i. experience]..

anyway, theres not much to it, especially
on a sloping road, and you're away..
then charge or tender at leisure..

but it will recover for practical purposes
with daily rides over a week or so..
ie, key-in type drain of a good battery..
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post #7 of 15 Old 10-14-2017, 08:39 PM Thread Starter
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Indeed. Helpful advice, thanks for the responses. I went and bought a cheap .75 amp charger because miejer was sold out of tender jrs (the only store open when I got off work) and I used it and it worked fine. Went to a local battery shop this morning and bought a voltage reader and a tender jr and they dropped off the back of my bike going like 40mph and slammed on the concrete and dragged. Other than scratched plastic they appear to be fine. Should I worry about them being damaged and find a reason to return and exchange them?
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post #8 of 15 Old 10-14-2017, 11:48 PM
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Quote:
Originally Posted by Aintnoskank View Post
Indeed. Helpful advice, thanks for the responses. I went and bought a cheap .75 amp charger because miejer was sold out of tender jrs (the only store open when I got off work) and I used it and it worked fine. Went to a local battery shop this morning and bought a voltage reader and a tender jr and they dropped off the back of my bike going like 40mph and slammed on the concrete and dragged. Other than scratched plastic they appear to be fine. Should I worry about them being damaged and find a reason to return and exchange them?
Maybe I'm missing something here, but it sounds like you just set them on the passenger seat and figured they would somehow manage to stay there while riding down the road.

As for "... and find a reason to return and exchange them?". Really?... does it seem like the right/fair thing to do, trying to return those goods to the seller (which by your own admission you damaged) and have the seller eat your mistake? Yeah, seems the idea of doing that is 100% contrary to what your username proclaims.

What the world needs a little more of, IMHO: https://www.values.com/integrity




.
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post #9 of 15 Old 10-15-2017, 07:32 PM
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typically and reasonably, returned goods
must be in the same condition they were in
when you, in good faith, bought them..

the human attitude of 'doing to others what you
would wish done to yourself', extends way back
to non-religious ethics teachings of [eg] confucius
and the sanskrit text hipodesha [1300bc]..
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post #10 of 15 Old 10-16-2017, 12:07 PM Thread Starter
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Gentleman I decided not to return it because I took your comments to heart and if they don't work I'll buy new ones. After all, I aintnoskank.
Peace and Love
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