Battery on or off for winter lay up?

[dogruff]

Hi,Had similar problems as i don,t ride in the winter any more (not since the old courier days) .I removed my battery and bought a maximiser/optimiser,as they are as cheap now as they,re ever going to be.Fazer doesn't have a big battery,and extreme cold will kill it.Some good deals on Oxford 600 on the bay at present,Oximiser is just  a re-marketed trickle charger.If cash is tight, the Chinese ones are around £6.