Simple solutions are often the best

My carbon monoxide detector started beeping every coupla minutes last night. Driven to distraction and after a hard day I beat it to death with a claw hammer in the early hours of the morning as suggested by the helpful video above.

I'm glad that I put it out of its misery, but when I was going through its entrails I found a pack of AA batteries. I bet it was whining because that was running down. It might be better if British Gas designed the SOB so we could replace the power supply; robbers.