BMS 1S 30A 3.2V LiFePO4 / 3.7V Lithium Battery Protection Board 18650 4.2V Charging Voltage/Short Circuit

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Serial Port Controlled MP3 Voice Playback Chip Module MCU-Controlled Trigger Custom Audio 20W Power S20F

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HF20W wide voltage 85V voice MP3 player module 20W one-to-one trigger custom audio 8M storage

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XY12530S CNC DC adjustable regulated power supply constant voltage and constant current module 125V/30A/3750W True third generation

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XY8030S CNC DC adjustable regulated power supply constant voltage and constant current module 80V/30A/2400W third-generation upgrade

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