Wife told me when I got home last night the car won't start. Went out and it would only click once and the lights would come one. Tried to move the neg battery cable around and got it to turn over (barley turned over) and started so I brought it to my work and did a battery load test. Found it had 84CCA. It fired right up at work so I drove it back home and took my other car to get a battery and replaced it the 10 degree freezing cold, can't ever break on the day before when it was 40. Car fired right up after I put the new battery in and now she calls and says it won't start again. Any idea's now?