edit: after 20 comments, i’m adding a post description here, since most of the commenters so far appear not to be reading the article:
This is about how surprisingly cheap it is (eg $15,000) to buy a complete production line to be able to manufacture batteries with a layer of nearly-undetectable explosives inside of them, which can be triggered by off-the-shelf devices with only their firmware modified.
Sending out IEDs that will probably explode in a supermarket and kill civilians is generally considered a war crime. So far 2 kids killed in Beirut by the Israeli bombs in devices.
Exterminating the next generation of people who would live on the land they want to steal is the goal.