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Rs 125 battery is flat...Help

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5v3d3b0
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Joined: 24 Sep 2006
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PostPosted: 13:32 - 24 Jan 2007    Post subject: Rs 125 battery is flat...Help Reply with quote
The battery has next to 0 power...The neutral light doesn't even come on at full strength. Will it be enough to take a few long rides, or will I have to buy a new battery?
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Jamie S
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Joined: 28 Dec 2006
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PostPosted: 13:36 - 24 Jan 2007    Post subject: Reply with quote
urmm duh ! charge it up !
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5v3d3b0
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PostPosted: 13:41 - 24 Jan 2007    Post subject: Reply with quote
Don't have a charger...
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Jamie S
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PostPosted: 13:43 - 24 Jan 2007    Post subject: Reply with quote
you no any one who has ? it would save u so much money mate
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5v3d3b0
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PostPosted: 13:46 - 24 Jan 2007    Post subject: Reply with quote
I might do. If so, instructions please! 12V right?
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Marci
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PostPosted: 13:47 - 24 Jan 2007    Post subject: Reply with quote
Bump start it, whack it in neutral, gaffa tape the throttle open so it sits at 5000rpm and leave it for a while. Won't do the bike any good but it should get some charge into it.

Can pick up a cheap trickle charger for £10 - shop around...

Yes, 12v. Clip negative (usually black lead) of charger to the battery first. Clip positive (usually red) to the battery. Turn on the charger.
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Jamie S
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PostPosted: 13:50 - 24 Jan 2007    Post subject: Reply with quote
look in the argos catalog (sp?)
they have them !
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5v3d3b0
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PostPosted: 13:52 - 24 Jan 2007    Post subject: Reply with quote
Will a car charger do? Think my girlfriend's dad has one
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0ddball
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PostPosted: 13:53 - 24 Jan 2007    Post subject: Reply with quote
Why is it flat in the first place?
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Jamie S
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PostPosted: 13:54 - 24 Jan 2007    Post subject: Reply with quote
yess ! a car chager will do !
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5v3d3b0
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PostPosted: 13:54 - 24 Jan 2007    Post subject: Reply with quote
It's been standing for about half a year...
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Marci
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PostPosted: 13:55 - 24 Jan 2007    Post subject: Reply with quote
Quote:
Will a car charger do?


Generally yes but don't leave it unattended during the charge as a carcharger will put out a higher charging amperage than a trickle charger. Plonk your hand on the side of the battery whilst it's charging, and if it's warm, stop charging it. DON'T use the "fast" charge option on the charger if it has one. Leave it on "normal".

2hrs should be plenty to start with, refit it, fire it up and take it for a good long run, preferably during daylight so you don't need mainbeam on.

Trickle chargers for bike / low capacity batteries tend to charge at around 0.4 / 0.5a, whereas car chargers can be anything up to 5a set to their slowest charging speed, and anything up to 12a (possibly more) on fast.
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Last edited by Marci on 13:57 - 24 Jan 2007; edited 2 times in total
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5v3d3b0
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PostPosted: 13:55 - 24 Jan 2007    Post subject: Reply with quote
How long do I charge it for?
EDIT: Thanks

Last edited by 5v3d3b0 on 13:55 - 24 Jan 2007; edited 1 time in total
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Jamie S
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PostPosted: 13:55 - 24 Jan 2007    Post subject: Reply with quote
car chagers are the same
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Jamie S
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PostPosted: 13:55 - 24 Jan 2007    Post subject: Reply with quote
obout 12 hours
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Jamie S
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PostPosted: 13:56 - 24 Jan 2007    Post subject: Reply with quote
set it to low on the strenght guage and leave over night !
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0ddball
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PostPosted: 13:56 - 24 Jan 2007    Post subject: Reply with quote
It might take a charge. Though sometimes if they have been left flat for too long it knackers them.
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SoulRider
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PostPosted: 14:23 - 24 Jan 2007    Post subject: Reply with quote
i brought a charger when i had my rs125 and use it now on my sv650s, their priceless, saves you so much money. mine was about £35 if i remember right and after a battery is fully charged it retains the chargbe untill i fit it. 40 mins charge is enough to get the bike started just needs decent run after.

Well worth investing in one imo Thumbs Up
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alains
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PostPosted: 15:13 - 24 Jan 2007    Post subject: Reply with quote
be carefull , lead batteries do not like fast charging . charge intensity must be 1/10 of power . ex : for a 5Ah battery , charge is 0.5 Amps during 8-10 hours . to check if your battery is still in order :
- after charging check voltage . if it's under 12.8 volts throw it
- leave it for 2-3 hours , check voltage again if you have lost more than 0.3 volts throw it
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5v3d3b0
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PostPosted: 21:25 - 25 Jan 2007    Post subject: Reply with quote
My girlfriend's dad has 2 different car chargers... One is 5 amps, and one is 3... Is 3 too much?
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Finglonga
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PostPosted: 21:40 - 25 Jan 2007    Post subject: Reply with quote
jamie stokes wrote:
car chagers are the same



Car chargers are usually High amp chargers and can fry a small bike battery. As Alains says keep an eye on th battery.
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Jamie S
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PostPosted: 23:01 - 25 Jan 2007    Post subject: Reply with quote
3 amp.
and dont let it get to hot
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colin1
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Joined: 17 Feb 2005
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PostPosted: 23:51 - 25 Jan 2007    Post subject: Reply with quote
Svedebo wrote:
It's been standing for about half a year...


i think you will need a new battery
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alains
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PostPosted: 23:59 - 25 Jan 2007    Post subject: Reply with quote
not necessarily , get it a charge with the 3A and check as i said
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Timmeh
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PostPosted: 00:04 - 26 Jan 2007    Post subject: Reply with quote
I bought an intelligent, fully-automatic charger from Halfords and it is the boss. It charges both car and bike, sealed and old-skool and only puts in what the battery allows. I've never had any problems with any of the batteries I've used on it, even on one I accidentally left on charge over the weekend.

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