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Battery State of Charge

peter2011c14

peter2011c14

Bicycle
I've noticed that after sitting for 3 or 4 days, the battery display indicates 12.4 volts with the engine off.  According to the manual, the battery should be charged if under 12.6 volts.

I did disable the "warning light" from blinking and after some riding, the battery then displayed at 12.7 volts with the engine off.

Are those that have had their bikes for a while finding a need to have a Battery Tender hooked up to maintain proper voltage?

Thanks,
Peter
 
I typically keep some sort of automatic trickle charger hooked up to my bikes when I'm not riding just as a matter of habit. Batteries will self discharge on their own, and many newer bikes have a small parasitic drain from clocks and various systems on the bike that also don't help. The hotter the temp, the more important it is to keep a charger on them, as the self discharge rates on lead acid batteries goes up with temperature, and if a lead acid battery is left in even a slightly discharged state for any length of time, it begins to sulfate, which depletes its lifespan and capacity.
 
agreeed I always have mine hooked up except earlier in the year I cleaned up the garage and unplugged it to sweep.
Had it off for an unknown amount of time showed 10.6 and still started .
 
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