Wide Compatibility:
Supports 1S to 8S Li-Po and Li-Ion battery packs, allowing use with a wide range of battery configurations in drones, RC cars, and planes.

Dual Function – Checker & Alarm:
Functions as both a real-time battery voltage checker (shows total and per-cell voltages) and a low-voltage alarm to alert users when cells fall below a safe threshold.

Bright LED Display:
Features a clear 7-segment LED display that shows each cell’s voltage sequentially, followed by the total pack voltage, ensuring accurate monitoring.

Adjustable Alarm Threshold:
The alarm voltage can be set manually between 2.7V and 3.8V per cell, allowing customization based on battery type and application.

Loud Audible Alarm:
Equipped with a high-decibel buzzer that sounds when any cell drops below the set voltage, ideal for flight safety in RC aircraft and drones.

Compact & Lightweight:
Ultra-light design (~9g), making it easy to attach directly to your battery’s balance lead without adding significant weight.

Plug-and-Play Operation:
Simply plug in the battery’s balance connector (JST-XH type), and the checker starts displaying voltages instantly without any setup.

Essential for Battery Safety:
Helps prevent over-discharge, which can damage lithium batteries or cause unsafe conditions, ensuring longer battery lifespan and safer operation.