So my polaris atv fan i have it running all the time now so i dont overheat the engine anymore but now it tells me the battery is dying faster than its charging i believe its because of the fan running but its not the actual battery that came with the atv i got one from my buddy cuz mine is shot i need a new one but this battery is near new what can i do to make it so it charges it normal? sometimes it will not pop up but then it comes up for a few mins then stops