Why am I getting a battery charge failure warning light in my Rover 75?

I'm having battery charge problems with my Rover 75 CDTi. I get dashboard warnings that all go away when you charge the battery, but return twenty miles afterwards.

Battery draining

I have a 2006 Volvo XC70 D5 SE with the safety package which included the built in phone and the Volvo "on call" system. The car was in fabulous condition and had only about 29,000 miles on the clock,...

Vauxhall Astra 1.6 1999

My astra lately has been struggling to start in the morning, it started 5 days ago when i tried to start the engine, instead of the engine turning it clicked and all my lights dimmed on the dash, this...