1S-4S Li-ion Battery Level Indicator LED Digital Module Battery Capacity Meter
USD 4.49 USD
Specifications
| Optional | With button Series |
| Brand | Unbranded |
Features a smart button. Upon power-up, the device first detects the number of battery cells; at this point, it defaults to Mode 0. A short press (within 3 seconds) of the smart button serves as the on/off function, whilst a long press (over 3 seconds) switches modes, allowing you to switch to Mode 1.
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