After purchasing brand new laptop, its battery may working for long time i.e., 3 to 4 hours non stop. Laptop sales is depends on the frequent electricity power failure in your geographic area. After some day, you will feel bad about battery life for your laptop. It may results more trouble. I Integrated Battery meter in your windows OS is insufficient for many times. It may fail often. For solving this problem, you do not need to buy another battery for one more 100$.
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