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A fully charged 1000mAH 3.7V battery contains ~ 13kJ of energy. One gram of TNT gives you ~4kJ. So at best - assuming you had some way of efficiently explodin
by duncan_bayne 11y ago
A fully charged 1000mAH 3.7V battery contains ~ 13kJ of energy. One gram of TNT gives you ~4kJ. So at best - assuming you had some way of efficiently exploding a smartphone battery - you'd get a couple grams of TNT yield.
I suspect shocking, burning or smoking would be a better route to weaponising a smartphone.
Edited: for comparison, the muzzle energy for a .50BMG round is ~15Kj. Bearing in mind you get ~4kJ from a gram of TNT, this explains why being shot hurts so much :)
- jacquesm 11y agoLaptop batteries do 200-400 Kj, that's 50 to 100 grammes of TNT. I'm not sure how much damage one could do with 100 grammes of TNT but surely you could find more than just one laptop battery to work with. Working grenades use anywhere from 50 grammes or more of TNT filler. The damage would very much depend on how fast you can liberate that energy and how well you could focus the blast.