Battery Problem, Please Help Me :(
Thread Starter
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Cruiser
Joined: Jul 2007
Posts: 238
Likes: 2
From: Tiny island, Singapore
Battery Problem, Please Help Me :(
I'm riding 2014 Dyna Street Bob. Everything is stock condition, nothing much added. My genuine Harley Davidson AGM battery is just over two years old.
I used a voltmeter to test the battery:
It is 12.5v when the bike is off
It is 12.2v when the light is on
It does not able to crank start
I used the CTEK MXS5.0 to charge it over night
I removed the charger and wait for one hour to test it again:
It is 13v when the bike is off
It is 12.6v when the light is on
It is 14.2v around 2000rpm
But it does not hold charge for ~12hrs and the cycle repeat again. I tried the "Recond" function from the CTEK MXS5.0 but it still don't hold charge more than ~12hrs
During these two years, there were two to three times I forgot to turn off the emergency light for about 20minutes and the battery not able to crank start. And there were two to three times I didn't ride the bike for two weeks, it didn't put on charger and it can't crank start. The past few months, the battery holding charge from around one week to three days to two days and this week around 12hrs. Is there anything else that I can test before replace the battery. It is a pity that the battery is just over two years. The bike had the alarm and ABS install from Harley Davidson when it is bought.
Can I say that the two to three times I forgot to turn off the emergency light for about 20minutes and the battery not able to crank start and the two to three times I didn't ride the bike for two weeks, it didn't put on charger and it can't crank start, is it the issue cause the battery to degraded and not able to use more than two years. And is it that it is better to charge one every few days if not riding for weeks because it is the alarm that draw the battery.
Im from Singapore and the weather is hot 26~32 degrees celsius throughout the year. The genuine Harley Davidson battery is ~$225USD
I used a voltmeter to test the battery:
It is 12.5v when the bike is off
It is 12.2v when the light is on
It does not able to crank start
I used the CTEK MXS5.0 to charge it over night
I removed the charger and wait for one hour to test it again:
It is 13v when the bike is off
It is 12.6v when the light is on
It is 14.2v around 2000rpm
But it does not hold charge for ~12hrs and the cycle repeat again. I tried the "Recond" function from the CTEK MXS5.0 but it still don't hold charge more than ~12hrs
During these two years, there were two to three times I forgot to turn off the emergency light for about 20minutes and the battery not able to crank start. And there were two to three times I didn't ride the bike for two weeks, it didn't put on charger and it can't crank start. The past few months, the battery holding charge from around one week to three days to two days and this week around 12hrs. Is there anything else that I can test before replace the battery. It is a pity that the battery is just over two years. The bike had the alarm and ABS install from Harley Davidson when it is bought.
Can I say that the two to three times I forgot to turn off the emergency light for about 20minutes and the battery not able to crank start and the two to three times I didn't ride the bike for two weeks, it didn't put on charger and it can't crank start, is it the issue cause the battery to degraded and not able to use more than two years. And is it that it is better to charge one every few days if not riding for weeks because it is the alarm that draw the battery.
Im from Singapore and the weather is hot 26~32 degrees celsius throughout the year. The genuine Harley Davidson battery is ~$225USD
Last edited by jackietan; Apr 18, 2018 at 11:13 AM.
Seasoned HDF Member
Joined: May 2012
Posts: 32,934
Likes: 36,027
From: Carlsbad, CA
Sounds like the battery is bad. Sometimes they dont last very long, especially if they go dead a few times.
Get a new battery, and keep it on a battery Tender when you are not riding.
Get a new battery, and keep it on a battery Tender when you are not riding.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
Likes: 7,968
From: poway
Sounds like something is draining your battery and your volt meter is off... Where are you measuring the voltage. Hopefully at the battery and the terminals are tight.
Add:
Also your battery could be draining internally.. Charge it disconnected, and let sit for 2 days. Voltage should be above 12.5.
Add:
Also your battery could be draining internally.. Charge it disconnected, and let sit for 2 days. Voltage should be above 12.5.
Last edited by Max Headflow; Apr 18, 2018 at 11:14 AM. Reason: Add:
Thread Starter
|
Cruiser
Joined: Jul 2007
Posts: 238
Likes: 2
From: Tiny island, Singapore
Sounds like something is draining your battery and your volt meter is off... Where are you measuring the voltage. Hopefully at the battery and the terminals are tight.
Add:
Also your battery could be draining internally.. Charge it disconnected, and let sit for 2 days. Voltage should be above 12.5.
Add:
Also your battery could be draining internally.. Charge it disconnected, and let sit for 2 days. Voltage should be above 12.5.
It is 13v when the bike is off
It is 12.6v when the light is on
It is 14.2v around 2000rpm
It just doesnt hold charge up to 6hrs
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
Likes: 7,968
From: poway
Disconnect the battery after charging and let sit. What is the battery voltage after 24 hours?
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Seasoned HDF Member
Joined: Mar 2010
Posts: 21,016
Likes: 7,545
From: Poolville
Fully charge the battery and take it to a shop that can load test it.. If it fails get an interstate battery. They are cheaper than OEM and will last a long time....
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From:
a" genuine harley davidson battery" isn't necessary. the bike doesn't know what the label on the battery says. any brand battery that is the right size and amps will work in the bike. the last battery i bought doesn't say "harley davidson" on the side of it and it's going on 9 years old.