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Sony VGN-CS310J Battery
Your Sony VGN-CS310J battery allows you to move freely about which gives you the opportunity to use it wherever you fancy. It is OK to buy a battery with more milliamps, as it suggests the battery will last a bit longer on one charge. What really is critical to a battery fitting your laptop is the physical size of the battery as well as the connection. Because no battery is the same, be sure to check the size and model number in order to make sure it is similar to the one you are going to replace. The more power the battery has, the longer it will last on a single charge.
Key signs of a weak battery
- The battery is puffed up and looking like it is going to burst
- The laptop lasts less than an hour before it shuts itself down
- The unit does not turn on when it is unplugged
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