Cost-Effective USB-C 2S Li-Ion Charger with Integrated 1W LED Flashlight - Fully Discrete, Generic Components, Minimalist Design

Welcome to your new project. Imagine what you can build here.

Heating element temperature controller with 2S battery support and power meter.

Heating element temperature controller with 2S battery support and power meter.

Compact 2S Li-ion charger for Sony NP-FZ100 battery using DC input, 8.4 V CC/CV charging, automatic termination, reverse polarity, overvoltage, overcurrent, and thermal protection, with defined B+ and B- battery outputs and PCB-buildable component choices.

Airsoft HPA FCU - 2S VBAT_SOL direct, nRF52 BLE, MOSFET solenoid driver

3.3V ESP32-S3 Dual 6V Rail MOSFET Board with MCP23017 I2C Expanders, Option C Gate Network, SW2 DPST Rail-Interlock, 2S LiFePO4 Charger/BMS (BQ24618 + BQ29209) with Series Battery Wiring and Charge Integration, and 2×10 RA Headers (#MCP23017_3V3 #OptionC #GateNetwork #RailInterlock #Dual6V #BQ24618 #BQ29209 #2S #LiFePO4 #SeriesBattery #ChargeIntegration #RAHeaders)

Two-Bank 6 V Igniter Firing System with Onboard 2S LiFePO4 Pack, S-8252A Protection, BQ24618 LiFePO4 Charger (3 A, 3.6 V Fast, <50 mA Termination, 3.8 V HPPC, 3.5 V Float), 32 SOT-223 MOSFET Outputs via MCP23017, with Reserved PCB Areas for Dual 26650 Holders, 34-pin IDC, and Barrel Jack Input #LiFePO4 #Battery #BMS

Power supply for 3.3V from a 2S LiPO using an XT30 connector

Bipolar (BJT) Transistor NPN 230V 15A 30MHz 150W Through Hole TO-3P(L) #CommonPartsLibrary #TransistorBJT #2SC5200

30V 1W 30@20mA,2V 3A SOT-89 Bipolar Transistors - BJT ROHS #CommonPartsLibrary #TransistorBJT #NPN