I saw in another guide that it is advisable, before working on the Li-Ion battery, to break the join between the two pads of JP1 which disconnects the battery.

This is very important due to the volatile nature of Lithium-Ion batteries.

It also takes away some risk of shorting out the battery when we remove it.

So with the solder, before working, break the join between the two pads of JP1.

And at the end, after replaced the battery, re-join the two solder pads of JP1.

I saw in another guide that it is advisable, before working on the Li-Ion battery, to break the join between the two pads of JP1 which disconnects the battery.

This is very important due to the volatile nature of Lithium-Ion batteries.

It also takes away some risk of shorting out the battery when we remove it.

So with the solder, before working, break the join between the two pads of JP1.

And at the end, after replaced the battery, re-join the two solder pads of JP1.