4 x 18650 Lithium Battery Holder Shield Module 220V 4000W SCR Voltage Regulator DX-BT18 Bluetooth Module (1x)

DX-BT18 Bluetooth Module (1x)

Quality components

7V 400mAh lithium-ion battery by Witty Fox - ideal for powering small electronics projects

No calibration or configuration required

RC Cars & Racing Models - Sustained power for competitive performance

4 x 18650 Lithium Battery Holder Shield Module 220V 4000W SCR Voltage Regulator DX-BT18 Bluetooth Module (1x)4 x 18650 Lithium Battery Holder Shield Module The 4 x 18650 Lithium Battery Holder Shield Module is a compact power management PCB designed to safely house and protect four 18650 lithium ion cells in series or parallel configurations with integrated protection circuitry. Professional electronics engineers, IoT developers, and roboticists use this module to build reliable battery packs for high drain applications requiring 3. 7V to 14. 8V output