Tooladoo Free online tools for your files

Convert Arbin .res files to CSV (Beta)

Read Arbin MITS Pro .res result files without Access or MITS Pro: data, auxiliary channels and cycle summary.

Opens: NDA, NDAX, MPR, MPT, RES
Saves: CSV, XLSX

Convert

Cycler files
Choose files… or drop them here
.nda, .ndax, .mpr, .mpt, .res · up to 200 MB each, 20 files max
    Add more files

    Neware .nda or .ndax, BioLogic .mpr (or an .mpt text export), Arbin .res. Add several cells to convert them together.

    Options

    Adds specific capacity (mAh/g) columns. Leave 0 to use the mass stored in the file, if any.

    Choose how data points are grouped into cycles for the summary.

    More options

    Up to 4 cycles for the voltage and dQ/dV previews, e.g. “1, 2, 10, 50”. Empty = picked automatically.

    Bin width for the incremental capacity curves. 0 = automatic (1–10 mV from the data density).

    Capacity retention is relative to this cycle. 0 = first complete cycle.

    Your files are deleted after processing.

    An Arbin .res file from MITS Pro is a Microsoft Access database, so reading it usually means Microsoft Access or MITS Pro on a Windows PC. This page reads the database directly and returns the whole test as one flat CSV, together with per-cycle results, incremental capacity and an Excel file.

    How to convert an Arbin .res file

    1. Upload the .res result file. Files from MITS Pro 4.x to 7.x are supported (database schemas 1.14 to 20171213).
    2. The active mass is read from the file when the operator entered one (MITS Pro stores it in grams; it is converted to mg). Type a mass to override it.
    3. For anode half-cells that start with lithiation, the Coulombic efficiency is computed the other way round automatically; Cycle numbering lets you change how cycles are grouped.
    4. Download Name.csv, Name - cycles.csv, Name - dQdV.csv and Name.xlsx.

    From Arbin's tables to one CSV

    A .res keeps the measurements in several tables. They are combined into one row per data point:

    Arbin fieldCSV column
    Test_Time, Step_Timetime_s, step_time_s
    DateTimedatetime
    Cycle_Index, Step_Indexcycle, step_index
    Current, Voltagecurrent_A, voltage_V
    Charge/Discharge_Capacity and _Energyper-cycle capacity (Ah) and energy (Wh)
    Internal_Resistance, when measuredinternal_resistance_ohm
    Auxiliary_Tabletemperature_C, then aux<n>_voltage_V, aux<n>_temperature_C

    Auxiliary channels are matched to the main data point by point, so a test with 12 auxiliary voltages and 8 temperatures gets 20 extra columns. The file details list the MITS Pro version, the channel and the schedule file name.

    Step types

    Arbin doesn't store whether a step was constant current, constant voltage or rest. The step_type column is therefore inferred per step from the data: constant current if the current varies by less than 2 %, constant voltage if the voltage stays within 5 mV, otherwise plain charge, discharge or rest.

    Checks and limits

    • The reader was cross-checked value by value against an independent Access database reader on five real .res files.
    • A file that holds several tests is exported with the tests one after the other, with a note.
    • If the database lists more points than it contains (a copy taken during the test), the available points are converted and you are warned.
    • Newer Arbin formats from MITS 10, which are not Access databases, are not supported.

    To compare cells from different instruments, upload them together: Neware .ndax and BioLogic .mpr files end up in the same column layout.

    More about what this tool reads and writes: Battery Cycler Data Converter.

    More with Battery Cycler Data Converter