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Posted by BryanUT on July 2, 2009, 7:37 pm
That is the cost I paid for leaving the key in the on position over
night. Killed the battery, after 36 hours on the battery tender it
failed to take on any charge.
So I bought a new battery. I'll never make that mistake again. Aside
from the expense, replacing the battery is pain. I don't know how
guys with big / fat fingers do it.
And now it's raining. I'll hope for better weather tomorrow, I have
the day off.
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Posted by Rob Kleinschmidt on July 2, 2009, 7:51 pm
show/hide quoted text
> That is the cost I paid for leaving the key in the on position over
> night. Killed the battery, after 36 hours on the battery tender it
> failed to take on any charge.
> So I bought a new battery. I'll never make that mistake again. Aside
> from the expense, replacing the battery is pain. I don't know how
> guys with big / fat fingers do it.
> And now it's raining. I'll hope for better weather tomorrow, I have
> the day off.
Supposedly, the battery tender will not charge a totally
dead battery. Perhaps you would have done better with
a less intelligent charger. Either that or at least produced
a memorable explosion.
http://forums.13x.com/archive/index.php/t-129570.html
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Posted by Mark Olson on July 2, 2009, 8:13 pm
Rob Kleinschmidt wrote:
show/hide quoted text
>> That is the cost I paid for leaving the key in the on position over
>> night. Killed the battery, after 36 hours on the battery tender it
>> failed to take on any charge.
>> So I bought a new battery. I'll never make that mistake again. Aside
>> from the expense, replacing the battery is pain. I don't know how
>> guys with big / fat fingers do it.
>> And now it's raining. I'll hope for better weather tomorrow, I have
>> the day off.
>
>
> Supposedly, the battery tender will not charge a totally
> dead battery. Perhaps you would have done better with
> a less intelligent charger. Either that or at least produced
> a memorable explosion.
Yep. I completely flattened the battery on my SV at least four times
by leaving the heated grips on. I just either put the stone age car
battery charger on it for a few hours or jumped it from the car and
rode it. According to all conventional wisdom that should have killed
that battery stone dead but it lasted fine until I sold it last year,
so 7 years + isn't too bad. For all their supposed superiority I can't
really see the point of a battery tender, a cheap automatic charger
at Wal-Mart costs less and delivers more amps and works fine with bike
batteries. During the winter I might or might not bother hooking up
a charger, the sealed batteries just don't self-discharge, especially
when it's cold. Conventional batteries only need a jolt every couple
of weeks. What some people do is hook their battery charger up to
the light bulb socket in their garage door opener- that way it gets
maybe 5 to 10 minutes of charging per day which is plenty.
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Posted by BryanUT on July 2, 2009, 8:42 pm
show/hide quoted text
> Rob Kleinschmidt wrote:
> >> That is the cost I paid for leaving the key in the on position over
> >> night. =A0Killed the battery, after 36 hours on the battery tender it
> >> failed to take on any charge.
> >> So I bought a new battery. =A0I'll never make that mistake again. =A0A=
side
show/hide quoted text
> >> from the expense, replacing the battery is pain. =A0I don't know how
> >> guys with big / fat fingers do it.
> >> And now it's raining. =A0I'll hope for better weather tomorrow, I have
> >> the day off.
> > Supposedly, the battery tender will not charge a totally
> > dead battery. Perhaps you would have done better with
> > a less intelligent charger. Either that or at least produced
> > a memorable explosion.
> Yep. =A0I completely flattened the battery on my SV at least four times
> by leaving the heated grips on. =A0I just either put the stone age car
> battery charger on it for a few hours or jumped it from the car and
> rode it. =A0According to all conventional wisdom that should have killed
> that battery stone dead but it lasted fine until I sold it last year,
> so 7 years + isn't too bad. =A0For all their supposed superiority I can't
> really see the point of a battery tender, a cheap automatic charger
> at Wal-Mart costs less and delivers more amps and works fine with bike
> batteries. =A0During the winter I might or might not bother hooking up
> a charger, the sealed batteries just don't self-discharge, especially
> when it's cold. =A0Conventional batteries only need a jolt every couple
> of weeks. =A0What some people do is hook their battery charger up to
> the light bulb socket in their garage door opener- that way it gets
> maybe 5 to 10 minutes of charging per day which is plenty.- Hide quoted t=
ext -
show/hide quoted text
> - Show quoted text -
I must have bad battery karma. Once dead they never seem to be
reliable again. On the other hand I have great lawnmower karma,
despite total neglect (I have never changed the oil or cleaned the
airfilter or sparkplug) it still starts on the 2nd or third pull.
It's almost 10 years old and was one the cheapest Homeboy Depot had at
the time.
I guess I should have at least tried the regular charger, if even to
just keep the wife happy.
I must say the battery tender has served me well over the winters.
Is your garage somewhat heated?
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Posted by Mark Olson on July 2, 2009, 11:08 pm
BryanUT wrote:
show/hide quoted text
> I must have bad battery karma. Once dead they never seem to be
> reliable again. On the other hand I have great lawnmower karma,
> despite total neglect (I have never changed the oil or cleaned the
> airfilter or sparkplug) it still starts on the 2nd or third pull.
> It's almost 10 years old and was one the cheapest Homeboy Depot had at
> the time.
I change the oil on my lawnmower once a year at least and put a new
air filter on about as often. In theory my time is worth far more
than the cost of replacing a lawnmower every few years but it's good
to be in the habit of taking care of your stuff, and wastefulness is
inherently wrong in my way of thinking.
I don't claim everybody will have good luck using a battery that has
been discharged to nothing multiple times but I did exactly that with
the SV's sealed Yuasa battery and figured I had used up way more than
its alloted number of lives but it kept working so why bother replacing
it, since I mostly commuted and could live with having to bump start it
if need be (carbed, not fuel injected).
show/hide quoted text
> I guess I should have at least tried the regular charger, if even to
> just keep the wife happy.
>
> I must say the battery tender has served me well over the winters.
Good for you, but as Rob has pointed out, they are deliberately designed
not to charge dead batteries. Why, is left as an exercise for the
student. So there is a very real chance that your battery might have
bounced back. There is a lot of BS spouted about batteries, absolute
statements by supposed experts abound, but if I can demonstrate to my
satisfaction that a battery is still working for me and I am prepared
to face the consequences of it going dead suddenly, I will continue to
use it until it shows signs of weakening. Sure, if I was going on a
long trip I'd probably replace a suspect battery just for peace of mind.
show/hide quoted text
> Is your garage somewhat heated?
No, heat is bad for battery storage. Batteries like cold, the colder the
better right up to the point where they freeze. Luckily, if a battery is
fully charged it won't freeze unless you are in Antarctica. The rate of
self discharge in batteries is highly dependent on temperature. Sealed
(fully charged) motorcycle batteries essentially go into suspended
animation in cold winter storage. I put the SV away in the winter and
started it up in the spring without ever putting a charger on it most
winters. Conventional batteries, the kind you add water to, do
self discharge enough so you need to put a charger on once every few
weeks or use one of those new fangled Battery Tenders. But since the
BT can't revive a dead battery, it's not as useful to me as a standard
taper-off charging cheap battery charger.
Go to Yuasa's website and download and read their battery tech manual
PDF file. It has lots of practically useful information.
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> night. Killed the battery, after 36 hours on the battery tender it
> failed to take on any charge.
> So I bought a new battery. I'll never make that mistake again. Aside
> from the expense, replacing the battery is pain. I don't know how
> guys with big / fat fingers do it.
> And now it's raining. I'll hope for better weather tomorrow, I have
> the day off.