LiPo Battery Voltage Tester 1S-8S

Connecting straight to a battery's balance plug, this tester reads each individual cell's voltage rather than just the overall pack total - important because a LiPo pack can show a healthy overall voltage while one individual cell sits dangerously low, a failure mode a simple overall-voltage check would completely miss. Displaying both individual cell voltages and total pack voltage in one glance is exactly what a pre-flight battery check needs.

An onboard buzzer alarm sounds automatically once voltage drops to a user-set threshold, giving an audible warning during use rather than requiring a pilot to keep glancing at a screen mid-flight. Covering 1S through 8S packs (0.5V to 36V total range) means one tool covers everything from a small whoop battery to a larger multi-cell pack, and its compact 4x2.5x1cm size makes it genuinely pocketable in a field kit.

Common uses are pre-flight LiPo battery health checks to catch a weak or damaged cell before it fails mid-flight, in-flight low-voltage audible alerts connected to the balance plug, and general RC battery maintenance checking storage voltage between flying sessions.