Charging cells in 2 laptop battery packs

[Shpeccy]

Hi. I was a bit curious as to why batteries in two different laptop batteries weren't charging so I'm looking for some opinions what to do with them and if they are salvageable.

First up cells from a 34GKR E7440 pack


As you can see two cells are swollen. Their voltage is 0 but I'm still not sure if they are safe to handle. I'd like to know how I can dispose of them.
I can't seem to find replacement cells of the same type. I read somewhere the BMS is designed with a cell in mind so you can't mix cells though I'm not sure if I can just replace all cells
The other two cells seem fine. They measure at 4.1V so they look like they are charged.
The cells seem to be wired 2s2p so I'm also wondering can I wire the cells in series in order to use the pack at reduced capacity.

Second pack is 722297-001 BL06XL from a dell laptop


No cell seems swollen although some measure a voltage below 2V. Most measure at around 1.5V while some measure 1.2V.
My idea is to use side cutters to free them from the BMS then charge them with TP4056 boards and put them back on the BMS but I wanted to consult the forum on what to do before I start a lithum fire.

Any and all suggestions are appreciated

[TheMG]

The cells that are at zero volts can be disposed of the same way you would dispose/recycle any other li-ion battery. Negligible chance of these spontaneously combusting, as there isn't any energy left and in order to ignite there needs to be enough energy in the cell to create enough heat for the cell to vent and ignite the vented gasses.

I would not attempt to recharge the cells that have dropped below 2V, over-discharge is damaging to li-ion cells and that does run some risk of fire I'm some cases if the cells are recharged from this excess discharge condition. If the battery pack's BMS won't allow the cells to be recharged after they have dropped to such a low voltage, there's a reason for this.