Fulabs Lithium 18650 Battery Pack Power Indicator Board 1S / 2S / 3S / 4S

I. Product Parameters

● Product Name: Lithium Battery Pack Power Indicator Board

● Battery - type Power Display: Supported

● Reverse Connection Function: Available. Even if connected with reverse positive and negative poles, it won’t burn out. Just adjust the connection to recover.

● Nixie Tube Color: Red outer frame; inner display grids optional in yellow - green or blue. All 4 grids light up when the battery is fully charged.

● Product Size: 44*17*8mm

● Aperture: 2mm

● Product Weight: Approximately 6.2g

II. Product Features

Supports battery - type power display, presenting intuitively and beautifully, with a wide range of application scenarios.

Compatible with multiple battery types, such as 18650, polymer lithium battery packs, lead - acid batteries, electric vehicle batteries, electric mosquito swatter batteries, etc.

Built - in reverse connection protection. No need to worry about burning out when the positive and negative poles are reversed. Just adjust the connection.

III. Display Power Parameters (Note: N represents the number of battery cells. The data has an error of about 2%. For strict requirements, please purchase cautiously)

Battery voltage > N×3.3V: 1 grid of power lights up

Battery voltage > N×3.5V: 2 grids of power light up

Battery voltage > N×3.7V: 3 grids of power light up

Battery voltage > N×3.9V: 4 grids of power light up

Battery voltage < N×3.3V: All 4 segments go out, indicating the battery is under - voltage and needs charging.