Hi guys, I have seen on here numerous times threads about battery pulls - I work in an electrical wholesalers and we take used battery packs for recycling, I have looked at a few drill packs before but they were old Ni-cads, but today someone put a very big Bosch fairly new looking 36v battery pack in the box, so I thought it would be rude not to take it back out! Took it apart and and it’s full of Lions, green in colour. Obviously they are all soldered together, but I wondered how safe is it to unsolder them, what are the do’s and dont’s aside from the obvious shorting! I take it you just lightly show a soldering iron to them to remove the joiners?
Any advice would be appreciated, and I suppose is it even worth it?
Thanks! 
PS It is similar to this, but I can’t remember the Ah
Usually battery packs are spot welded and you have to tear off the tabs and grind off the rough spots.
Not too hard but you do have to be careful about shorts.
if they are soldered, you can use soldering iron to desolder it, just dont extra hit it.
but its most likely just like 2 DOGS said, spot welded.
sure it worth it, its free… 
Toss any cells that measure less than 2 volts (2.5 - 3 volts if you are paranoid)… you don’t want those. They can be very dangerous to recharge.
im not sure if its good idea but i did recover cells from 1V and below, and they are working just fine,
only thing i pay attention to, is if the battery get worm while charging at 1A,
if it get worm i would stop the charge and never use it again.
thanks for the input guys, I’ll have a go tomorrow and report back - providing I haven’t blown the shed up! 
It’s not a good idea at all. Once the cell gets that low it can start doing things like growing needle sharp crystals that can short out the cell and then kerblewie! The damage is not immediately apparent.
^
Food idea or not, I thought it was the number of times that a cell was taken low that mattered.
Fixed…
Not really, all it takes is once. Particularly if you ran it down while under load. Better to be safe than sorry. I do use some 2900 mAh Panasonic cells that were out of some NOS Asus packs. They were at 1.9V. Been using them for a few years.
i wouldn’t ever use a soldering iron to a remove batteries from a drill pack .
use some needle nose pliers ,a set of micro shears and rip the cells apart .
Don’t bother cleaning up the cells too much till you find out if they are worth saving .
A soldering iron isn’t going to do a thing to spot welds …heat on a cell is dumb/dangerous
Just to let you know I haven’t got around to it yet, but I won’t be using a soldering iron - as it goes I was going to do exactly what Boaz said
I’ve got some nice Swiss made pliers and cutters that will make light work of the joiners.