The first battery I was shipped did not hold a charge and was given the warning message that the battery failed. I was lucky to get an hour from a full charge. iFixit replaced the battery at no charge, the new battery came. Within the first week I was getting about 2 hours from a full charge and dropped down to an hour. I took my computer to Apple and paid $150 for a new battery installed and it took less than 3 hours for the repair to be completed same day. Battery is running like when my computer was brand new. I get about 4+ hours from a full charge. I wish I took it to Apple to begin with and saved my time and money.
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