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date and time problem after decharging battery..ive reset smc and pram.but problem exist…how can i replace the cmos battery in this model?
All of the unibody MacBook Pros do not have a pram battery. From what I know there is a portion of the battery that is supposed to act similarly. What I would do, because the computer could have a defective battery, is buy an new battery which would most likely fix your problem. If you don’t want to replace your battery then you could just try to always keep some charge in it. I never run my computers all the way down to the “dead” point. Hope this helps
“All macbooks and macbook pros have batteries, most are on a pigtailed connector either taped to the logic board or hidden under the optical drive. The A1278 has a tiny battery soldered directly on the logic board. The sizes for all these batteries range from a 1/4 dime to a quarter. The types are lithium although the smallest almost seem like alkalines?”
