Product Features

1. Supports 1S–4S lithium-ion battery series connection, with strong compatibility

2. Accurately display the battery percentage, making it intuitive and easy to read

3. Ultra-small size design, easily fitting into compact devices

4. Low power consumption operation, extending the standby time of the entire machine

5. Manually switch the string count, easy to use

KBAB0066-001/KBAB0066-002 (with/without buttons)

Product Parameters

Product parameters: Maximum voltage resistance: 36V±10

Voltage range: 3~17.29V

Battery capacity: Unlimited

Battery level display: 0% to 100%

Detection accuracy: ±1%

Average operating current: 7mA±0.3mA

Refresh rate: 0.3 seconds/time

Output control: None

Reverse polarity protection: None (The positive and negative terminals cannot be reversed, otherwise the module will be damaged)

Applicable battery range: The module is suitable for all 1~4 lithium-ion battery packs with a rated voltage of 3.7V (full charge voltage of 4.2V), whether connected in series or parallel, such as 14500, 18650, 21700, polymer lithium-ion batteries, and batteries of any capacity and size

Model with buttons

Intelligent buttons have been added. Upon power-on, the device first detects the number of battery cells, defaulting to mode 0. The display illuminates after approximately 1 second and shows the current battery percentage. At this point, short pressing (within 3 seconds) the intelligent button switches on/off the device, while long pressing (over 3 seconds) switches between modes, allowing you to switch to mode 1. After switching to mode 1, the display turns off by default. Short pressing (within 3 seconds) the intelligent button immediately turns on the display, and the value increases from 0% to the normal battery level within approximately 1 second (due to the reuse of button functions, the filter capacitor needs to be charged after being turned on). Then, it automatically turns off after a delay of 3 seconds. Long pressing (>3 seconds) the intelligent button switches back to mode 0, and the cycle continues;

KBAB0066-003 (4.2V in parallel)

Product Parameters

Product parameters: Maximum voltage resistance: 36V±10

Voltage range: 3~4.41V

Battery capacity: Unlimited

Battery level display: 0% to 100%

Detection accuracy: ±0.25%

Average operating current: 7mA±0.3mA

Refresh frequency: 0.3 seconds/time

Output control: None

Reverse polarity protection: None (Do not reverse the positive and negative poles, otherwise the module will be damaged)

Applicable battery range: The module is suitable for all single lithium-ion batteries or multiple lithium-ion battery packs in parallel with a rated voltage of 3.7V (full charge voltage of 4.2V), such as 14500, 18650, 21700, polymer lithium-ion batteries, and batteries of any capacity and size. The module displays the current battery percentage in time after being powered on

Precautions

1. Connect VCC to the positive terminal of the battery and GND to the negative terminal. There