Well finally ordered a Varta L1 (020) battery for £106 from Tayna (eBay) as it was on offer. Fitted it 3 days ago in the freezing cold as the car was not starting on a daily basis. Easy to change and coded it using a BEM code from a genuine battery listed on ebay
One reason my battery may have died quicker than usual was the fact that some numpty had previously fitted the wrong battery. It had a Varta 100ah battery which was smaller and obviously cheaper than the correct one.
So far so good, starter spins quicker and starts the car quicker too. Also it has not gone into sleep mode yet
