Sérült Li-Ion cella esetén a legnagyobb baj a folyamatosan fejlődő, kémiai eljárásból fakadó hő. Emiatt csak folyamatos hűtéssel lehet kezelni az ilyen tüzet, az automata rendszerek hirtelen oltása után gyakran ismét lángra kaphatnak.
Akár a vízzel oltás is hatékony lehet:
> Li-ion contains very little lithium metal that reacts with water. Water also cools the adjacent area and prevents the fire from spreading. Research laboratories and factories also use water to extinguish Li-ion battery fires
> A large Li-ion fire, such as in an EV, may need to burn out as water is ineffective. Water with copper material can be used, but this may not be available and is costly for fire halls.
> The Phoenix Fire Department is educating its crews on fighting lithium-ion battery fires.
> "We use larger streams to hit the fire, and when it's out, we keep hitting it, keep hitting it, keep hitting it," McDade explained.
> Lithium-ion batteries will reignite when drenched and even after it appears the flames are out.