||LinkBack||Thread Tools||Display Modes|
Batteries die - often age related (they're usually not good for much more than 5 years), and possibly even more often when they're left to discharge completely. The over discharge causes a buildup of lead sulphate (a by-product of the lead acid battery), which can short out some of the plates in the cell, causing the voltage to drop, and the battery to lose it's ability to hold a decent charge. Once it's done that - it's toast.
If you have an alarm system, or something that has a parasitic draw on the battery, it might be a good idea to get a battery tender, to keep the battery trickle charged and topped up. Mine save me a few new batteries when I had an alarm.
'95 900 Superlight IV #064
Mods are: K&N filter, airbox lid on with rubber trumpets removed, MBP collets, full SMI (SilMoto Italia) spaghetti exhaust with 'open' carbon cans, 41mm FCR's - #182 mains!, Barnett alloy clutch basket, Oberon slave cylinder, Ohlins fork springs, Ohlins rear shock, Verlicchi swingarm.
Join Date: May 2019
Location: Yuma, Az., USA
That is why spending $20 bucks on a load tester is an excellent investment. The load tester is a miniature load bank, it allows you to test the voltage AND the "under load current". Also, depending on where you place (aka "connect") that tester it may be used to test not just the battery, but also the solenoid, cables, and connections.
I try to be mindful of the fact that thousands of people all over the world may end up reading posts in a forum like this when searching the web for information. So while you are already ahead of the situation, there's a solid chance someone that isn't even a member here may discover what we write and find it all very useful. Especially information that addresses very common issues such as motorcycle and/or other vehicle starting problems as well as general charging and battery failure issues.
I'm really glad you've discovered the problem, and hopefully everything folks have offered here in the way of suggestions has helped you to learn more about your precious and beloved motorcycle.
'96 CR. ...Reading is so hard. ...Thinking hurts.
I'm a square peg among round holes (HA!)
Prolific Poster Award
Join Date: Jul 2010
Location: Grass Lake, Mi, USA
Does a load tester for car batteries work for motorcycles too ?
'96 Ducati SS900CR, '07 S4RS, '06 Busa, '77 Bonny,
'00 Superglide, '85 Sportster, '78 SR500
Join Date: Nov 2008
Location: DeLand, Florida, U.S.A
Should work fine
1991 Ducati 900ss-Euro, 1991 Ducati 907ie. 1978 Yamaha SR500, 1979 Yamaha RD400 Daytona Special, 1973 Truimph X-75, 1975 Triumph T-160, 1976 Triumph T140, BMW's too many to list