Ctek mxs 5.0 12v battery charger, this is great for long winter storage or for recharging flat battery up to 160ah, very safe does not damage sensitive electronics. Smart charger, 8 step auto program, suitable for most types of battery's, brand new in box, comes with clamps and ringlets for quick hook up connect and forget and will keep it topped up when in storage. £79 online asking £55