[Biker_Andy]

If you top your battery off in the fall you can likely get away without a trickle charger. That's what I do with all my batteries and they last many many years. I fully change mine before storage and fully charge it again when removing from storage. It's not good to overcharge a battery and some trickle chargers will actually reduce the life of your battery depending on how "smart" they are. A good one will stop charging when fully charged until the battery drops below a threshold. Stupid trickle chargers keep charging 24/7 and after months will reduce the capacity of the battery. Trickle chargers are really designed so your battery is ready at a moment's notice, great for fire trucks and ambulances. Not ideal for months of storage and not what their actually designed for.