1S 2S 3S 4S Mini Battery Level Indicator Module LED Digital Display Lithium Iron Phosphate Battery Meter Capacity Gauge

Product Features:1. Specifically designed for lithium iron phosphate batteries, with precise compatibility for 1S–4S configurations2. Percentage digital display for an at-a-glance view of battery charge level3. Ultra-compact module for easy integration into compact devices4. Low-power operation to extend the device’s standby time5. Manufactured from high-quality materials to ensure product reliabilityProduct Overview:This product is suitable for displaying the percentage charge of 1/2/3/4-cell DC 3.2V LiFePO₄ batteries. As the voltage curve of LiFePO₄ batteries places very high demands on the battery gauge’s detection accuracy, it currently displays only 10% per increment (e.g. 0%–10%–20%... . 100%). This battery gauge is available in four variants: 1S, 2S, 3S and 4S, corresponding to 1 cell or 3.2V in parallel, 2 cells in series at 6.4V, 3 cells in series at 9.6V and 4 cells in series at 12.8VProduct Specifications:Maximum withstand voltage: 16V ±10%Voltage measurement range: 3–12.8VBattery capacity: UnlimitedCharge display: 0%–100% (10% increments)Measurement accuracy: 100% ±10%Average operating current: approx. 7mA ±10%Module Dimensions: 18.1mm × 8mm × 6.1mm (L × W × H; please note that manual measurements may contain slight discrepancies; the actual product shall prevail)Output Control: NoneReverse Polarity Protection: None (positive and negative terminals must not be connected in reverse, otherwise the module will be damaged)Precautions:1. Connect VCC to the positive terminal of the battery and GND to the negative terminal; markings are present on both the front and back of the board2. Ensure the power is switched off when connecting wires; otherwise, accidentally touching the pins on the rear of the board may cause a short circuit and damage the module. After soldering, verify that the positive and negative terminals of the power supply do not touch the pin pads on the rear of the battery meter before switching the power on3. There is no reverse polarity protection; connecting the positive and negative terminals incorrectly will damage the module. It is recommended to verify the polarity before connecting the wiresPackage Contents:Battery level display module × 1