[stavely]

I keep my bike in an old barn with no electrics so I can't use a battery tender.
If I ride the bike every week then it always starts. But if left 12 or 14 days the battery is too flat to turn it over.
If I take the battery out then charge it, it seems to hold that charge ok. So i think the immobiliser system drains it.
Removing the battery is a pain as you lose trip functions and the clock and have to reset it.
So if I have a big old car battery and connect that in parallel with the bike battery do you think that would save the bike battery and not harm the electronics?
I could just charge the car battery once a month then.
What do you think?

 

[SouthernIcon]

Sounds like it should work fine, I would try to find a deep cycle battery as it would be better at holding a charge for a long time. Another solution if you have access to the sun would be to buy a solar battery maintainer.

 

[stavely]

wow can you get solar powered maintainers big enough for vehicle batteries?

 

[SouthernIcon]

wow can you get solar powered maintainers big enough for vehicle batteries?

All day long...Coleman Solar 12 Volt Battery Maintainers — Twin Pack, Model# 58215 | Amorphous Solar Panels| Northern Tool + Equipment

 

[CookieKing]

All day long...Coleman Solar 12 Volt Battery Maintainers — Twin Pack, Model# 58215 | Amorphous Solar Panels| Northern Tool + Equipment

Hashtab smart

 

[stavely]

cheers, sun is abundant here, even in the mountains so i'll go track one down.

 

[Deano968]

I have a solar charger and it worked great on my old car that had to spend time on the street. Ironically I can get the icon close enough to an outlet to plug it in but I'd recommend the solar chargers. Mine's a Coleman too - a 7 watt trickle charger.