Battery power level tester Can be used for 3.7V/1S, 7.4V/2S, or 11.1V/3S battery packs Red LED flashes when cell is below 3.3V Alarm sounds when cell is below 3V, indicating Lipo battery pack should be recharged Always monitor your battery charging and charge your LiPO battery only on non-flammable surface.
Trustpilot
3 weeks ago
2 days ago
