Battery pack - Ewincher The whole Ewincher range is available at unbeatable prices The battery of the Ewincher Winch Crank has a long autonomy, sufficient to go out without problem during the day. Ewincher's autonomy varies mainly depending on the use you make of it and the size of your boat. Examples of use with 1 battery loaded on a Dufour 405: By 10 to 15 knots of wind: set up the mainsail 3 times then chain 40 transfers by maneuvering the Genoese only with Ewincher. Or hoist an 85kg teammate at the top of the mast 3 times (climb height 14.50m) Plant time: 1h30 on the 12V as the 220V For boats over 45 feet and more we recommend a battery. Technical documentation to download here