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-   Bikes - Talk & Issues (http://forums.sv650.org/forumdisplay.php?f=129)
-   -   Battery reverse connected. What's the damage? (http://forums.sv650.org/showthread.php?t=160499)

paiste 10-12-10 05:35 PM
Re: Battery reverse connected. What's the damage?
 
Quote:
Originally Posted by hindle8907 (Post 2438071)
Well my bike (2000 Curvy) has been sat in the warehouse at work for the last 3 days becuase my battery died, so I come to work this morning with a different battery out of my old bike.
Now Im not making excuses for my self :---) But it was dark, early and im really tired lol, any ways connect it all up and turn the key and nothing, i look down at the battery and to my horror see that i have got the connections the wrong way round !!! :(
removed the connections and placed the right way and try again, and still get nothing now the battery might be dead because its out of the bike I crashed a few month ago but was a solid battery before that and its been kept inside although not on charge.

what are the possible out comes of this ? :confused:

Cheers Ant.
Ant.
That battery isn't that old. I'm sure It's less than a year :confused:
Got it from batteryman on here mds batteries
Do bike batteries have a warranty???

Smudge 10-12-10 08:24 PM
Re: Battery reverse connected. What's the damage?
 
Quote:
Originally Posted by yorkie_chris (Post 2438927)
A bike is permanent magnet alternator so runs at full output all the time. The regulator has to control this either by switching the current on and off very rapidly (new MOSFET type) or by dumping a load of energy as heat to bring the voltage down (olde shunt type like stock SVs).

(N.B some bikes have charge coil bit just like a car alternator and no reg rec)
Do the FET ones still have a heatsink?

leebex 10-12-10 09:22 PM
Re: Battery reverse connected. What's the damage?
 
Hindle8907, i`ll be interested to know if you get away with just a recharged battery.

I connected my battery up the wrong way a few weeks ago as i wanted to make sure the pointy rear light and euro headlight all worked ok.

Couldnt believe it when I saw what id done, should know better in my line of work too :rolleyes:

The bikes been in bits, so havent even tried to start it, maybe a job in the next couple of weeks, so if Ive buggered it. Although not sure if reg/rec was connected as much of the bike was in bits.

Lee

yorkie_chris 10-12-10 11:45 PM
Re: Battery reverse connected. What's the damage?
 
Quote:
Originally Posted by SmudgeK3 (Post 2439202)
Do the FET ones still have a heatsink?
Yes. They are power transistors to switch it on and off and still dissipate some heat. They don't get half as hot as shunt ones though.

punyXpress 11-12-10 12:27 PM
Re: Battery reverse connected. What's the damage?
 
. . .so in this weather it'd be a GOOD IDEA to put longer leads to your reg/rec & tuck it down yer kecks? ;)

leebex 12-12-10 08:06 PM
Re: Battery reverse connected. What's the damage?
 
Connected my battery up this evening, correctly this time, how will I know if I buggered up my reg/rec box?

Will the bike run ok, but not charge the battery, whats the speedo issue mentioned?

Cheers, Lee

yorkie_chris 12-12-10 10:04 PM
Re: Battery reverse connected. What's the damage?
 
Best way is to get a voltmeter and test it.

fastdruid 12-12-10 10:30 PM
Re: Battery reverse connected. What's the damage?
 
The speedo issue is that the speedo/tacho is a delicate instrument thats not designed to have 12v shoved the wrong way up it!

Hook it up, turn it on and see if it works.

Druid

leebex 13-12-10 08:51 PM
Re: Battery reverse connected. What's the damage?
 
sorry for the hijack hindle, looks like my speedo is ok, all light up, and the mileage display is ok too. Will put multi meter on it when I get it running in the next couple of weeks.

Sid Squid 13-12-10 09:50 PM
Re: Battery reverse connected. What's the damage?
 
If you didn't switch the ignition on, then you'll probably be OK.

SVs do not have CDI, they have a transistorised version of a coil and battery system, sometimes referred to as a Kettering system, (it was invented by Charles Kettering of the Dayton Engineering Laboratory Co Ltd - Delco - in about 1905 or so).

CDI systems do have an ignition coil, which may or may not be integrated into the ignition unit. CDI charge capacitor discharges through ignition coil when the spark is required.

A fuller explanation: Click me.


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