I'm pretty sure I've got this one figured out, but wanted to double check as I don't want to be selling the Levin (BT 4age) as a lemon.
The story goes that I went away for a while and when I came back and went to go for a drive the curn turned over a few times and then started clicking like it had a flat battery. Jump started it, drove around for 15 mintues then came back and tried to start it, turns over then clicks. Damn.
At that stage I took the battery to put in the KE70 (standard 4k) I just bought, put it in, jumpstarted and drove as per normal for several weeks. Then a couple of days ago I went to put the battery back in the Levin: turn, turn, click. WTF, that battery has been turning over the KE70 for a good 30 seconds before it starts everytime, it should be mint. Put the battery back in the KE70 and start it up fine with no jumpstart.
To me it sounds like the battery no longer has the grunt to turn over a high comp engine? (fingers crossed)