Why the battery needs to be on trickle charge?

[TankerTruck]

I cannot agree more.

The best thing I've done to the bike is the Optimate4: super easy install, can hide (anc cap) the female end under the seat when riding, and takes 15 seconds to plug in once you get home.

[Tire Torcher]

There does seem to be something specific to S3 though, my FZ1 can sit for 6 months with no charger and spin over like it was ridden that morning, all my other bikes in the past as well. I leave my Speed for a week without a tender and it's noticeable. If it's been cold at all, forget it. It's been like that since new.
I know batteries discharge over time, but I have owned a ton of bikes and other machines, never experienced anything like this. I keep a tender on the S3 all winter and nothing on my FZ1, the FZ starts cranks faster in spring. Very weird.

[12340987]

Originally Posted by Tire Torcher

There does seem to be something specific to S3 though, my FZ1 can sit for 6 months with no charger and spin over like it was ridden that morning, all my other bikes in the past as well. I leave my Speed for a week without a tender and it's noticeable. If it's been cold at all, forget it. It's been like that since new.
I know batteries discharge over time, but I have owned a ton of bikes and other machines, never experienced anything like this. I keep a tender on the S3 all winter and nothing on my FZ1, the FZ starts cranks faster in spring. Very weird.

do they all have the same type of battery? Never heard of a battery sitting 6 months wired in and still working, I want your battery, what kind is it?

[Joe Houle]

The early 1050 ECU's will crank and crank and let the battery wind down, destroying the sprag in the process. The later 1050's will not do this. Instead, you get the row, row, poosh. If the voltage during cranking drops to 10.3v or less, the ECU resets and ends the starting cycle. I had this issue on my '08. I went through several SLA batts, before I finally upgraded the R/R to a MOSFET type, and a Shorai 18 battery. No issues.

[DFUSEME]

Hey Joe! Do you know if my 09 has a MOSFET type RR? I think upgrading he RR may be the next step in trying to fix my bike. It does the same thing you described yours doing. Mostly in cold weather though.


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[Ferris]

Originally Posted by Joe Houle

I finally upgraded the R/R to a MOSFET type, and a Shorai 18 battery. No issues.

Then the stator turned bad and took the Shorai 18 with it?

[noobinacan]

this bike is know for having a shot Reg/rec cause of its location.
there was a recall for street trip, and most people here feel should be one for this bike too.

mine was reading 13.4 at idle.
installed the Shinden last nigh and now reads 14.1 at idle.

basically bike may not be charging the battery.

[alfacliff]

chargfe them all you want, all you will do is boil the water out of them and warp the plates from overcharging.
A battery tender isnt going to do much when you ride to work, no place to plug it in. my 06 dosnt have efi, so it dont really care about battery voltage.
the program in the computer is set to not allow starting if the battery goes below 12.5 volts. even with no drain, a good battery will go to 12.5 volts on its own after charging. google lead acid battery charging.
cliff

[Crogers]

I have a nice smart charger I bought for this very reason. I just hate to use it because I have to run a 100' cord to my shed where the bike is locked up.
I guess I could have an electrician run a wire out there permanently but I am cheap.

I still say the bike should not lose voltage this fast.

[Speed3]

Originally Posted by alfacliff

chargfe them all you want, all you will do is boil the water out of them and warp the plates from overcharging.
A battery tender isnt going to do much when you ride to work, no place to plug it in. my 06 dosnt have efi, so it dont really care about battery voltage.
the program in the computer is set to not allow starting if the battery goes below 12.5 volts. even with no drain, a good battery will go to 12.5 volts on its own after charging. google lead acid battery charging.
cliff

A battery tender is not a full time charger, so your battery won't boil.