Can swollen laptop batteries be used?

Question

Batteries

I have two netbooks asus t101MT.
Great guys, but both are broken:
1. - wi-fi does not work
2. - charging does not work. (the battery is charging, then quickly sits down, without a battery it does not turn on at all)
So the former owner changed their batteries to work on the second one. those. white used for charging.
Now one battery is already swollen by a centimeter, the second battery is swollen by 3mm.
Naturally, it makes no sense to stick a battery into a second laptop - it inflates them (I suspect so)
But is it possible to stick a slightly swollen battery into the first netbook - which is fine with charging?
And at the same time the second question - is it possible to assemble a 7.3 volt battery from batteries yourself? those. repair the second battery.

Answer 1

1. - wi-fi does not work

So move the wi-fi module into it from the second
Better not to. May explode or self-ignite.
It is possible, but not everything is so simple - there is also a controller that needs to be reprogrammed for new banks.

Answer 2

Not only are they not supposed to be used, and it is very undesirable :)

Answer 3

swollen lithium (Li-Ion, Li-Po) batteries are dangerous, because they are close to the fact that the case would break and the lithium would react violently with air.
and in laptops, usually metal-hydride (Ni-Mh) batteries stand and they lose from swelling only in their capacity, but they do not explode and do not cause much harm.
Directly on the battery should be type written.

Answer 4

If immortal, then yes.

Answer 5

A Li-Ion battery can also swell from overdischarging below a critical value. In this case, the PCB controller will most likely disconnect the battery (there will be 0 V on the contacts) and it will not be possible to charge it in the normal mode. You can do this in manual "frog" mode or model charging for the appropriate type of battery.
In this case, the "bloat" will disappear and the battery will last for some more time.