Hugh Robjohns wrote:I doubt it was the update that did it... probably just a coincidence as it's been unused for a couple of months now. But it appears that the battery is kaput. Removing the battery cures the red light and the speaker works normally on mains power.
I also noticed that with the duff battery in place, the blue (switch) light fades up and down for a minute or so before giving up and turning red. So I suspect it's trying to run a charge cycle and is failing for some reason. I'm hoping it's the charging/balancing circuitry in the battery at fault, so a simple swap-out might hopefully cure it... I see a replacement battery costs around £100! :o
I'll report back once Bose have been in touch.
I suppose if necessary a combination of some new Li-On cells of the correct chemistry/size and an application of either a screwdriver or "the vice of knowledge" might sort matters.
From what I understand like sealed lead acid batteries Li-On batteries don't like being flat for too long.