The NEC Lavie Z series is NEC's leading ultrabook, but the first model, PC-LZ750JS, has been released several years since its launch.
After that, there are various line-ups such as PC-LZ550SSB of the late model and PC-HZ550GAB of the derived model, but I think that the first model of Lavie Z in particular is troubled by the deterioration of the battery.
If you do not stick the AC adapter, the power will fall off, and if the battery is reduced quickly, I think that it can be solved by replacing the battery, so I think that you can refer to the following decomposition method.
In addition, the model that was disassembled this time is Lavie Z PC-LZ750JS, but PC-LZ550JS released at the same time, PC-LZ550MSS has become exactly the same way.
Some laptop models can also buy batteries at consumer electronics retailers, but in the case of Lavie Z, there is no place to buy because the battery is special, so it seems better to disassemble after finding parts.
[Lavie Z PC-LZ750JS battery replacement 1]
The first Lavie Z will be disassembled from the back of the main body, but it is necessary to remove a good screw to remove the back cover.
The part surrounded by a red circle has a seal of the same color as the body called screw concealation, so let's peel off the seal with a tool such as tweezers.
[Lavie Z PC-LZ750JS battery replacement 2]
Screw concealation is easy to peel off because it is only affixed with light double-sided tape.
[Lavie Z PC-LZ750JS battery replacement 3]
After you can peel off the screw hidden, let's remove the screw with a single-minded Lys screwdriver.
[Lavie Z PC-LZ750JS battery replacement 4]
I was able to remove the back cover.
[Lavie Z PC-LZ750JS battery replacement 5]
I think that it is possible to check the battery as soon as the back cover can be removed, but the battery connector is connected to the part surrounded by red waku.
[Lavie Z PC-LZ750JS battery replacement 6]
Remove the connector as shown in the image by sliding it sideways.
[Lavie Z PC-LZ750JS battery replacement 7]
Since the battery itself is secured with screws to the main body, let's remove all screws in the part surrounded by a red circle.
[Lavie Z PC-LZ750JS battery replacement 8]
This connector has nothing to do with the battery, but it interferes when removing the battery, so it will be removed at the same time.
The method of removing is the same as removing the connector of the battery, so that it slides sideways.
[Lavie Z PC-LZ750JS battery replacement 9]
It is the wiring extending from the connector of the previous, but let's avoid this as well.
[Lavie Z PC-LZ750JS battery replacement 10]
The battery could be removed.
