Randomized Battery Discharge Cycles with Reference Benchmarks

Four 18650 Li-ion batteries were cycled using random walk discharging currents between 0.5A and 4A, followed by random-duration recharges. After every fifty random cycles, reference charging and discharging cycles were performed to benchmark battery state of health. The dataset is part of a series from the National Aeronautics and Space Administration.

Use Cases

• Model battery degradation by analyzing voltage discharge patterns to 3.2V under random walk current profiles.
• Benchmark state of health by comparing performance in randomized cycles against periodic reference charging cycles.
• Study the impact of variable recharge durations between 0.5 and 3 hours on long-term battery capacity.

Strengths

• Includes reference benchmark cycles performed after every fifty random walk cycles for state-of-health calibration.
• Data covers four distinct battery cells (RW1, RW2, RW7, RW8) for comparative analysis.
• Experimental design uses a controlled random walk discharge profile with currents between 0.5A and 4A.

Limitations

• Specific data volume, row count, and column structure are unknown, complicating initial assessment.
• Limited to four battery cells, which may not capture full population variability in degradation.
• Dataset is part of a series; full context may require accessing other related datasets.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Continuous cycling of batteries with randomly generated current profiles and periodic reference cycles.

Freshness

Last updated on 2026-01-16.