Concealed Digital 510 Thread Battery

Extre 510 Concealed Digital Battery – 650mAh Power meets portability with the Extre 510 Concealed Digital Battery. Designed to keep your cartridge protected and discreet, this sleek device features a full digital display that shows voltage, battery life, and preheat status at a glance. The powerful 650mAh battery ensures long-lasting sessions, while the universal 510 thread fits most cartridges — including sizes up to 3.5g. Brand: Extre (by Volcanee) Battery: 650mAh Thread: Universal 510 compatibility Display: Full digital screen for real-time info Use: Fits cartridges up to 3.5g Features: Adjustable voltage & preheat function Easy to use, discreet, and impressively powerful — the perfect upgrade for anyone wanting more control from their 510 battery.