Yet another DUD battery ,, !!!

jerry · Today, 03:59 PM

What is wrong with modern AGM motorcycle batteries , I gave up on Motobatts as they were so unreliable 3 in one year 2 were changed under warranty in Thailand , replaced with a Yuasa ?????, Then 2 Yuasas in less than 2 Years in UK ,, Now a Unibatt in UK only 18 months has died its showing 12.8v but 2 cells are down when a load goes on ,, I am trying a French/belgian Made Fullbat this time ,,,

In years past Yuasas and Motobatts used to last me 5 years at least ,,, None of the bike have charging problems ,and I use optimates as well.

Other people are telling me that they are having similar issues with very few bike batteries lasting more than 2 years even on brand new bikes .....

Ron1000 · Today, 08:07 PM

FWIW I use jmt / jmp batteries on all my bikes. My 1100evo has had one in for four-ish years and starts no bother.

A local parts shop I use doesn’t like jmp, said he’s had a few issues. But certainly that’s not my experience.

Mr Gazza · Today, 08:22 PM

My Motobatt is now over 11 years old and still never been on a charger.
I might have to relent and give it a little trickle, as it's gone down to 11.7 volts after being off the bike for nearly a year.

I think you must be buying those fake batteries Jerry? Always buy from a reputable source.

For what it's worth I think optimates kill batteries.

Ron1000 · Today, 10:21 PM

Same as mr gazza here. I don’t trust optimates, never put my batteries on trickle charge.

The evo battery has never seen a conventional charger, my streety RS has once and that’s about it.

Today, 03:59 PM	#1
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,869	Yet another DUD battery ,, !!! What is wrong with modern AGM motorcycle batteries , I gave up on Motobatts as they were so unreliable 3 in one year 2 were changed under warranty in Thailand , replaced with a Yuasa ?????, Then 2 Yuasas in less than 2 Years in UK ,, Now a Unibatt in UK only 18 months has died its showing 12.8v but 2 cells are down when a load goes on ,, I am trying a French/belgian Made Fullbat this time ,,, In years past Yuasas and Motobatts used to last me 5 years at least ,,, None of the bike have charging problems ,and I use optimates as well. Other people are telling me that they are having similar issues with very few bike batteries lasting more than 2 years even on brand new bikes ..... __________________ MONSTERMAN

Today, 08:22 PM	#3
Mr Gazza Lord of the Rings Join Date: May 2013 Location: Norwich Bike: M900sie Posts: 5,935	My Motobatt is now over 11 years old and still never been on a charger. I might have to relent and give it a little trickle, as it's gone down to 11.7 volts after being off the bike for nearly a year. I think you must be buying those fake batteries Jerry? Always buy from a reputable source. For what it's worth I think optimates kill batteries. __________________

Today, 08:07 PM	#2
Ron1000 Registered User Join Date: Jun 2015 Location: Livingston Bike: M1100evo Posts: 866	FWIW I use jmt / jmp batteries on all my bikes. My 1100evo has had one in for four-ish years and starts no bother. A local parts shop I use doesn’t like jmp, said he’s had a few issues. But certainly that’s not my experience.

Today, 10:21 PM	#4
Ron1000 Registered User Join Date: Jun 2015 Location: Livingston Bike: M1100evo Posts: 866	Same as mr gazza here. I don’t trust optimates, never put my batteries on trickle charge. The evo battery has never seen a conventional charger, my streety RS has once and that’s about it.