Like I said, "a gentle life". Cardiff is mild with temperatures seldom below Zero Celsius, but the cold and damp of Winter is hard on old bikes and polished Al casings soon form white powder coatings. In very cold climates a trickle charger running 24/7 may be required. Does MaxPete keep his bikes in an ambient temperature garage or is the garage heated? Do others in super cold climates experience poor life for their lead cell batteries, both with or without a trickle charger/tender? Is keeping the charge at 12.8 - 13.4 voltages the only way to suppress sulfation?