That might be an interesting question to bring up with the manufacturer... I would think that a winch (especially a full pull usage) and excessive auxiliary lighting might not work so well for this little guy... but would still be something interesting to look into for sure... especially if it would in fact work for our usage.. I wonder if nothing else to install it as an added battery... so say for a dual battery setup, have your standard battery, and this installed like a second battery setup... That way it could just pick up the slack from the first, but might allow it to stand up to winch and auxiliary lighting better...