My Battery died the other day. I trickle charged it up for a few hours and drove it for 30 min after. Stored for night. 12 hours later I went to ride it again, lights looked like they had nice full brightness but battery did not have enough juice to start. Boosted with a not full charged spare car battery. Drove for a few minute and not thinking shut it off and it would not start again. The wheter has been very damp and cold for past week or so here. Would this effect it? (bike is stored in non heated gargage, cold but dry)

Should battery be trickle charged at 6a or 12a?

Did you double check the electrolyte levels first - and top up as needed?

A 30 minute ride should have recharged a battery enough to start it 12 hours later - if your charging system is running fine and the battery is good.

Check battery - get it load tested.

Follow Addy's advice and (I'll leave him to chime in here  with his multimeter advice )...

Michael

Also check for corroded connections, especially in the high-current start circuit (since you had "nice bright lights" and no start, I suspect the start circuit more than otherwise.) Check the connections on BOTH sides of that (+ & -)

Load testing the battery is always good and nearly always free. You'll verify that it is part or all of the problem, or not. If not, you know to look elsewhere, rather than looking elsewhere when it could be all crap-tastic battery.

Quote from: Higgins13 on October 17, 2012, 11:47:09 AM

Should battery be trickle charged at 6a or 12a?

Should be charged at 1a, unless otherwise specified.

Turns out Battery had 1 dead cell and 1 almost dead cell. It was bouth just 6 months ago and was still under warranty. I got it replaced free.

Good. Glad you got it fixed.


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Quote from: Higgins13 on October 18, 2012, 09:04:01 AM
Turns out Battery had 1 dead cell and 1 almost dead cell. It was bouth just 6 months ago and was still under warranty. I got it replaced free.

Another case of `infant mortality` It amazes me the number of people who think that because a battery is relatively new it cant be at fault and automatically rule it out 

They are always the weakest link in the electrical system and load test is always the way to start tracking down starting/charging issues



I bought one of these a couple of years ago, best piece of kit ever. Everytime I lend it out I say....`just buy me a beer`....its paid for itself many times over