1
Choose a current
Filter by published currents such as 40A, 50A, or 52A. Mixed-current comparisons are allowed, but the site warns when the conditions are not identical.
A project by DIY500AMP.com created by Nelvick Berrios
Real tests, live data, public charts
Battery data you can actually compare.
BatteryRealData.com turns DIY500AMP high-current discharge logs into clear charts, rankings, and fair comparison notes. Pick the cells, pick the current, and see voltage sag, power, capacity, Wh, current, and temperature behavior side by side.
Raw CSV processed by Python
Usable above 3.0V shown
Early stops flagged
A project by DIY500AMP.com
BatteryRealData.com is a public battery testing project by DIY500AMP.
BatteryRealData.com is a project by DIY500AMP.com, created by Nelvick Berrios, to make real battery test results easier to compare.
The database uses DIY500AMP testing workflows to show voltage sag, power, usable energy, capacity, current, and temperature across multiple current levels. The goal is transparent real-world battery data for serious builders, buyers, and pack designers.
2
Select the cells
Compare any available combination from the database. The tool loads processed chart data for selected tests so the page stays fast.
3
Read the curve
View voltage, power, temperature, capacity, Wh, and time charts. Early stops, missing data, and cutoff differences are shown clearly.
Live public battery testing
Watch tests while they are running
The live page shows public battery testing directly from your live test system. Use it for active runs, then use this database for processed results and fair comparisons.
Data access policy
CSV downloads are not public right now
The website shows processed charts, rankings, and fairness notes for public viewing. Raw tester CSV files and detailed exports are kept private. Later, detailed data access can be offered by paid subscription or by direct request.
A
Why usable above 3.0V matters
At high current, the lower part of the discharge curve can look good on paper but may be less useful in real packs. The site keeps raw totals visible and also shows normalized usable capacity above 3.0V when the data supports it.
B
Why early stops are flagged
If one test ends at 3.04V and another reaches 2.50V, raw capacity is not a fair ranking. The database marks early stops and explains when a comparison needs caution.
C
Built for builders
The goal is simple: make it easier to pick cells for real high-current use, not just compare datasheet claims.
Latest published test runs
Processed public results from the BatteryRealData database. CSV/data exports are not public yet.
| Cell | Current | Usable capacity | Raw Wh | Max temp | Status | Report |
|---|---|---|---|---|---|---|
| Loading catalog... | ||||||