Look, I‘m no scientist. I just see the effects in real life. Obviously the amount of material affects the energy effectively released. One job of our fire department is to spread awareness and in those messages, you are better on the safe side and be extra cautious. If you are a scientist or know exactly what you are doing, feel free to handle it the way you want to. Based on the message of OP I knew they were inexperienced. That‘s why I would never recommend solutions which are not super clear and super safe. Water and battery can work - but it can also clearly fail if done wrong.