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Thread: CG 125's battery not charging itself !

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    Default CG 125's battery not charging itself !

    Few days back, the battery was working fine. I noticed the acid level in the battery was low. poured some acid into it from a mechanic and put the battery in the bike without recharging it but after that, battery is not charging itself from the bike's generator. Could the battery be dead, or is it rectifier which is not working?
    Any ideas?

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    Quote Originally Posted by xavier9 View Post
    Few days back, the battery was working fine. I noticed the acid level in the battery was low. poured some acid into it from a mechanic and put the battery in the bike without recharging it but after that, battery is not charging itself from the bike's generator. Could the battery be dead, or is it rectifier which is not working?
    Any ideas?
    Happened with my gs. You need to diagnose the root of the problem. In my case two wires had shorted when i was washing it. Check headlight and under the seat. If all connections are ok anothet possibility could be a dead battery. If not that, then its a faulty rectifier

    Sent from my LG-F160K using PW Forums mobile app

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    Well first check the age of the battery. If its older than 6 months or a year ... then get it charged first. (It takes approx 1 or 1.5 hours to fully charge it, and most electricians will try to buzz you off by charging 10-15 mins and taking Rs.50-60 from you)

    Also, if your battery charges itself after you ride your bike for a few kilometers ... but then slowly loses its charge once you stop it in your home ... then its mostly because battery needs charging. BUT if even after riding a few kms, your battery doesn't get charged on its own ... then its most probably the rectifier not charging the battery (assuming the battery is fine).
    Riders on the storm ... literally.

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    A quick and dirty way to test if the battery charges or not, is to plug it to a 12 volts UPS. Homage UPSs are very common and if you have a 12v one, you can try plug it in and see the indicators. Shouldn't take too long! If it doesn't charge or if charge doesn't last long, then the battery is about to die.

    Otherwise, it would be something with the rectifier.

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    caution..

    the ups/inverters shoot 10-30 Amps of current and this little tiny battery might not be suitable to be charged/tested with such high currents.


    Quote Originally Posted by sleepyhead View Post
    A quick and dirty way to test if the battery charges or not, is to plug it to a 12 volts UPS. Homage UPSs are very common and if you have a 12v one, you can try plug it in and see the indicators. Shouldn't take too long! If it doesn't charge or if charge doesn't last long, then the battery is about to die.

    Otherwise, it would be something with the rectifier.

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    Quote Originally Posted by asjdsm View Post
    caution..

    the ups/inverters shoot 10-30 Amps of current and this little tiny battery might not be suitable to be charged/tested with such high currents.
    Technically, a battery should not be charged at Amps higher than 10% + of its original rating.
    So it's 1.5 amps for motorcycle batteries.

    The Homage 12v UPS charges at 3 amps. So it would be double at that rate.

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    checked the battery...it was dead.....so got a new one

    thanks guys for the help...

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