Morning all bit of advice needed just bought a new banner 110amp battery from an online shop but to my surprise they sent me two of the same type phoned them up and they said it was a mistake on there part and to keep the other one as it would cost a lot to have it picked up again so what i was wondering is what is the shelf life of a new battery just left in the shed not used will keep it as a spare but batterys seem to last in excess of 5 years when on the van we hardly ever use EHU as we rally most weekends all year round