Love making use of used vape batteries, not pretty but here is a decent 12V battery pack with battery manegement. What to do with disposable vape batteries? Did you know vapes contain batteries hidden within them? If we throw vapes or electricals with batteries in our general rubbish, they can get crushed and cause dangerous fires in bin lorries How to Make Vape Battery Last Longer Ooze Got my first mesh device running off old vape battery : r meshtastic