Honda Blackbird flat battery issues

[spooch63]

Hi, went for a blast out to to Ace Cafe on Thursday (25th June) bike fired up as usual with no issues as usual, got to the cafe, had a burger as you do then set off back for home, stopped just outside London to fill up and bike once again fired up as it should, thrashed it back the 125 miles home, half an hour later went to put it away and wouldn't start, battery completely flat, Anybody got any ideas as to what the problem might be, has happened once before about four months ago but no after a quick charge all was well, since its happened twice now thought bi might see if anyone can point me in the right direction to sorting this out as i'd hate to have to bump start this beast of a bike when out and about on it. Thanks in advance for any help.

Paul 

[gsexr]

How old is the battery ?
Can you put a meter across it and see if its charging with all the lights on ?

couple of things to check

www.pistonheads.com/gassing/topic.asp?h=0&t=1027464&mid=0&nmt=Electrical+prob+-+Honda+Blackbird.

[reggit]

Is it charging, have you checked the voltage at the battery with the bike running?

[spooch63]

Battery is 18 months old so would hope its not that although would be easiest to fix, will check charging rate with bike running when i get back from work next week