Has anyone upgraded to a bigger battery than the stock one? I wanna go bigger so i don’t completely screw up the one that’s in it (which i probably already have). I have a 12k winch and I’ve used it some but after the first time using it my batteries (i do have 2 in it) won’t hold a charge anymore than about a day. I just don’t know what the charging system can hold up to battery wise. And i don’t want to put a huge strain on it. TIA
The charging system can put out a maximum of 700 watts (roughly 50 amps) at 5000 RPM regardless how many batteries you attach to it. It can charge 5 full size car batteries if you are patient enough.
"won’t hold a charge anymore than about a day" is so vague there is no way someone here can help you. Are you saying your batteries are dead after sitting a day or dead after using the winch all day for the day?
And like everyone else has posted, 12K winch is massive overkill. That is rated to pull 12K at a 45 degree angle. My 5K winch (still overkill for a Talon) will drag my Talon with all 4 tires locked on pavement. I even moved the front of my 1 ton Duramax sideways trying to pull a tree with my Talon tethered to my truck.
Get a smaller winch, a good second battery and a good isolator.