WHAT BATTERY TO GET?!?!?!

Actually not true. LifePo4 chemistry doesn’t react to oxygen like other lithium chemistries that contain cobalt. You can find YouTube videos of people literally drilling holes through lifepo4 cells without fire. Yes it generates a lot of heat but so does drilling a hole through a lead acid battery.

Lithium isn’t perfect, mainly it seems most manufactures can’t seem to get the BMS hardware and programming right, but they have a lot of advantages over lead acid.
I'm curious where the holes were drilled, because like this video shows, it's not the oxygen that makes the reaction, but the layered electrodes coming into contact with one another that causes the rapid thermal reaction that make ones made like this hot.

 
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Yeah I see I missed that there was an actual difference between the Li-ion and LiFePO4. I'm not up on all the latest and greatest tech stuff, but I like that video I posted because it doesn't use a lot of narration or cuts. It would be cool to see how that battery reacts to all the same tests like fire and being dunked in water and short circuited. To be honest I thought that LiFePO4 was some bougee name brand like Yeti or the other off-puttingly named overland gear brands that pop up for sale once someone realizes they hate going outside and never really needed any of that stuff in the first place haha.
 
Yeah I see I missed that there was an actual difference between the Li-ion and LiFePO4. I'm not up on all the latest and greatest tech stuff, but I like that video I posted because it doesn't use a lot of narration or cuts. It would be cool to see how that battery reacts to all the same tests like fire and being dunked in water and short circuited. To be honest I thought that LiFePO4 was some bougee name brand like Yeti or the other off-puttingly named overland gear brands that pop up for sale once someone realizes they hate going outside and never really needed any of that stuff in the first place haha.
Yeah it’s the cobalt in most other lithium batteries that makes the fire. IMO your cordless tool battery is more likely to burst into flames than a large LifePo4 battery bank.
I’ve also seen over charge tests, nothing exciting happens. It pops the foil vent, vents off electrolyte as steam and dies. Only risk in that scenario is the vented gas is flamible if the A/F mixture is perfect and you have an ignition source. A bad lead acid vents off flammable hydrogen gas in much higher concentrations anyway
 
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