I do not think the issue resides with the battery at all. Apple products are know to do stupid $@$* to "protect " their devices. Sometimes your computer does stupid things from the humidity being a little to high for this delicate expensive device and trips a fuse. That being said a fuse in your motherboard could be fried and it keeps get tripped and it shuts down your computer. So this might need a full replacement of the mother board but I do not know for sure. Get a reliable repair person to check if this the case. This repair might cost half as much of the computer so I think it might be in your best interest to buy a new computer if this is the case. This repair could be very cheap though if the person just needs to replace the fuse and nothing else.