BAT-T-LED-4S Battery Capacity LED Indicator Module 4S Li-ion 14.8V Maximum for 18650 batteries

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US$4.05
BAT-T-LED-4S
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BAT-T-LED-4S Battery Capacity LED Indicator Module 4S Li-ion 14.8V maximum for 18650 batteries 

This product is used to measure and indicate the power of 4 lithium batteries. Of course, it can also measure the power of lithium battery packs with 4 strings and multiple parallels. It detects the current voltage of the lithium battery, and then indicates the current voltage value of the lithium battery by controlling different numbers of LEDs to light up.
Module parameters:
1. Product name: 4 string lithium battery power display board
2. Input voltage: DC 3V-20V
3. Applicable battery: 4 lithium batteries or series multi-parallel lithium battery pack (3.7V standard lithium battery)
4. Product size: 44.5*9*7.2mm

Instructions for use:
The product has a button, which will turn on after a short press and release, and display the current battery level, and turn off after 5 seconds. In the off state, press and hold the button for more than 2 seconds to turn it on and display the current battery level, and turn off after 5 minutes. In the power-on state, it can be turned off directly by pressing the button.

Notice for California Residents: Warning symbolWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov