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Before you restore laptop battery it is needed to take it apart and make a laptop battery test. it is quite difficult because producers never take care about restore the ability of their products. as in previous instruction you have to separate the two parts of the body by using a knife or something like that.. Bu-911: how to repair a laptop battery. find out the challenges and limitations of repairing “smart” batteries. most laptop batteries are smart and consist of the “chemical battery” that is managed by the “digital battery.” a common protocol is the system management bus, better known as smbus.. If you’ve ever owned a laptop you’re familiar with that sinking feeling you get when you realize that your battery isn’t holding a charge like it used to..