Method and Apparatuses for Providing Information for Maintenance and Service Purposes for a Battery Unit

A battery management system comprising:

• a capturing unit configured to capture use data for a battery unit;
• a quantizing unit configured to quantize the captured use data;
• a histogram unit configured to produce a histogram that has frequency values for the occurrence of particular values of the individual quantized use data items or values derived therefrom;
• a carrier unit configured to ascertain an additional information carrier that is set up to reconstruct the histogram;
• and
• and a storing unit configured to store the histogram and the additional information carrier in a nonvolatile memory.

A battery comprising:

• a plurality of battery cells;
• and
• a battery management system including (i) a capturing unit configured to capture use data for the battery, (ii) a quantizing unit configured to quantize the captured use data, (iii) a histogram unit configured to produce a histogram that has frequency values for the occurrence of particular values of the individual quantized use data items or values derived therefrom, (iv) a carrier unit configured to ascertain an additional information carrier that is set up to reconstruct the histogram, and (v) a storing unit configured to store the histogram and the additional information carrier in a nonvolatile memory,
• wherein the battery is configured to be connected to a drive system in a motor vehicle.