Electrical · Renewable Energy
Battery Storage System Modeling
Intermediate 5 weeks 35-60 hours
Build a battery test rig: controlled charge/discharge of a lithium cell while logging voltage, current, and temperature. Measure real round-trip efficiency and capacity fade over cycles.
Major
Electrical
Focus area
Renewable Energy
Total hours
35-60 hours
What you'll need
- 18650 lithium rechargeable battery cells 4 pack
- TP4056 lithium battery charger module USB-C pack
- DC electronic load module constant current battery tester
- INA219 DC current voltage power monitor sensor module
- DS18B20 waterproof digital temperature sensor probe
- Arduino Uno R3 board with microSD card data logging shield
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Steps
- Set up the charger, electronic load, INA219, and temperature probe around one cell in a fire-safe spot.
- Program the Arduino to log voltage, current, and temperature during charging and discharging.
- Run a full charge and discharge cycle and calculate capacity and round-trip efficiency.
- Repeat the cycle 10 or more times and track how capacity changes.
- Watch temperature on every cycle and stop the test if the cell gets hot.
- Plot capacity fade and efficiency and document the rig for your portfolio.
What to photograph for your portfolio
- Battery test rig
- charge/discharge curves
- round-trip efficiency
- capacity fade over cycles
Resume bullet starters
Copy one, then swap in your own numbers.
Engineered a battery storage system modeling using Battery testing, energy storage, Arduino
Applied data logging and degradation analysis to implement, test, and validate the analysis end-to-end
Skills you'll show off
Battery testingenergy storageArduinodata loggingdegradation analysis