The Mini Battery Level Indicator for 1S Li-ion/Li-pol batteries provides an easy way to monitor the charge and discharge status of 4.2V single-cell batteries. Using a high-precision built-in comparator, this tiny indicator displays the battery level using four LEDs, each representing a percentage of charge (100%, 75%, 50%, and 25%). It offers accurate voltage detection with ±1% accuracy, making it ideal for small electronics and portable devices. Its compact size and intelligent hysteresis design ensure reliable performance during charging and discharging cycles.
Specifications of Mini Battery Level Indicator 1S Li-ion

Voltage Range (1S): 4.2V

LED Indication:

4 LEDs: 100%

3 LEDs: 75%

2 LEDs: 50%

1 LED: 25%

Features:

Ultra-small size: 5 × 9.5mm

Built-in high-precision comparator

Three-color LED indicator: green, yellow, and red

Intelligent hysteresis for smooth charging/discharging instructions

Datasheet of Mini Battery Level Indicator 1S Li-ion