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|26th September 2008, 11:19||#1|
Join Date: Jul 2007
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RE Thunderbird Battery Issues
I own a thunderbird for 5 yrs now. The bike has done 41000 kms. Off late i have been facing some issue that I wanted advice on.
Looks like my bike's battery (Exide ) is not charging or is discharging too soon. The battery is 2 yrs old and my mechanic says I have to replace it as it does not charge properly even from a charger. The battery water levels has been checked and is fine.
I would like to know from you experts about what all should i investigate.
What else ?
Also, in case all is good and its the battery that is near death, which one would you all recommend ?
a. The good old Exide
c. Amaron (This comes with a 5 yr warranty)
MODS, i could not find any thread for this so created one.
|26th September 2008, 18:56||#2|
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Go for Amaron maintenance free battery. Your Exide has given you good life, don't waste time or money on your old battery anymore.
|26th September 2008, 19:08||#3|
Senior - BHPian
Join Date: Jun 2007
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I would recommend you get Bat Mobile to see the battery and give their opinion whether it can be revived and then junk it if they say no. Don't junk a battery on the advice of a mechanic.
Their number is 3271 1111.
|27th September 2008, 00:21||#5|
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If it doesn't charge, then there are these areas you need to check:
If these are fine, then the battery may need replacement.
|15th January 2009, 15:48||#6|
Join Date: Jul 2007
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My battery is up for change.
Its 5.5 years old.
The voltage of the battery came at a little less than 7 with the bike off.
Now my question is, does the battery play any role in how a bike performs.
I am happy with the battery with its low voltage but am I causing a performance drop due to this.
The only things that run on the battery are Roots Vibrosonic horns, parking light and the indicators.
I am planning on installing additional lights. Riding to Ooty for RM. So am changing the battery but this question plaques me.
The bike is a 2003 June model Thunderbird.
|31st August 2010, 11:27||#7|
RE ThunderBird Battery Options
My cousin is looking for a Battery replacement for his ThunderBird, but is having trouble sourcing one. The current battery in the ThunderBird is Exide Freedom 12MF14L-A2 which is not readily available anywhere. There seems to be no alternative in Amaron for a 14L battery.
Is there any other alternative for the ThunderBird battery replacement? Or can someone help us source a new Exide 12MF14L-A2 on priority?
Appreciate your responses.
|1st September 2010, 15:55||#8|
They also had another option of Exide Backer with the same specification i.e. 12V-14Amp, which was half the cost, however the SA mentioned that the warranty would be for 6 months instead of 1 year and the average life of the battery would be 1.5-2 years.
|1st September 2010, 16:51||#9|
Join Date: Jul 2009
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|1st September 2010, 16:58||#10|
First time we enquired about 10 days back and they had no stock. For the last 10 days, we were searching in every battery shop and in fact paid an advance to one battery shop to source a battery. Yesterday, while I was posting it on the forum, my cousin went to drop his TB for service and generally enquired again for the battery. He was told that the service center is expecting delivery of batteries (apparently 1000 of them, don't know if the figure was for the service center or for RE). By evening, the battery was available and installed.
Ask your friend to try his luck the RE again.
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|3rd September 2010, 15:55||#11|
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|5th September 2010, 13:52||#12|
Join Date: Apr 2008
Thanked: 2 Times
If you plan to buy new battery make sure the battery is completely charged (around 12.75 amps)
connect the battery to your bike and then check the voltage.this will show you the actual charge on the battery.
A stock battery showing you full voltage does not necessarily mean the battery is fully charged.
|24th November 2012, 14:00||#13|
Join Date: Jul 2012
Thanked: 90 Times
Took my Thunderbird TBTS out & straight to servicing yesterday after some 3 months. Battery was weak and the mechanic said I might need to change it. But I dint agree nor did fellow bhpian Thumpingheart for a obvious reason that the battery was just a year old.
I ride my Tbird mostly on weekends as I prefer taking my Ritzy to work, so I ride less overall and this is the reason for the quick discharging. Also, I dint ride much in the last 5-6 months because the only time I get with my 11 months daughter is on the weekends.
Finally, I took my bike to a local battery guy and he tested the battery.
Voltage with engine turned off : 10.79 Volts
Voltage with engine revving at 2.5k : Around 15 Volts
Now, the servicing fellow said he had charged the battery for some 4 hours and the battery showed around 15 volts when i revved, so the battery is charging and its in pretty good shape.
So experts, I have a few questions here,
1. My ES does not work with 10.8 volts, I hear a whining sound. How much voltage does the starter need to crank the engine? (all other electricals working perfect, 12V standard Exide battery)
2. Battery discharging to a great extent when I don't ride her for say 2 weeks, is this normal? Is my battery good?
3. How much time would my battery take to fully charge if I ride her everyday?
4. Please give me some tips to maintain my battery, I have already changed 2 batteries till date
***All cells in my battery are fine & the distilled water level is also good.
Note: Mods, I tried searching for a similar thread but could not find one. Please merge this in case a similar thread already exists.
|25th November 2012, 16:52||#14|
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Join Date: Oct 2008
Location: Punya Nagari
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Re: Battery voltage
A battery is at 0% state of charge at ~11.4V @ 27 C, if it shows a reading below that it's probably sulphated and that's the reason it wont retain a charge and start your bike. A fully charged battery should be 12.5-12.6V depending on make & model. But that's not the only thing to measure - you need to load test the battery something your dealer should be able to do.
Answer to your questions:
1. As mentioned the voltage when fully charged is 12.6V. A battery showing 10.xx V is dead. Also, 15V is too high a charging voltage. This will lead to excessive water loss.
2. If it runs flat in 2 weeks it could be due to a leakage - check your bikes wiring. If all checks out ok it may be the battery. Have you fitted any aftermarket accessories such as lights, horns? I suspect the battery from the symptoms you have described
3. That depends on what is the state of charge. A flat battery will take a long time to charge and its best connected to a wall charger instead of running the bike. If the battery is near or at full state of charge you need to ride the bike for 5-6 Kms every day and NOT in bumper to bumper traffic. Bikes have smaller alternators and take longer to charge the battery.
4. Tips - Get your electrical wiring and charging system checked. Charging voltages should be between 13.8-14.4V. Make sure the water level is always between the top max line and Min line. Ride the bike at least 1-2 times a week, take it for a nice sprint. If possible buy a wall charger and connect the battery to it when you don't intend using the bike for extended periods of time.
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|25th November 2012, 17:50||#15|
Join Date: Mar 2008
Thanked: 60 Times
Re: Battery voltage
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