The 1-8S Lipo/Li-ion/LiFe Battery Voltage Tester with Low Voltage Buzzer is a compact 2-in-1 tool that measures individual/total cell voltages (0.5-36V total range) and triggers a loud audible alarm (adjustable 2.7-3.8V, default 3.3V) with red LED flashing when voltage drops too low. Designed for 1-8 cell packs, it plugs directly into the balance connector, preventing over-discharge during RC use.
