Nedis BANM9HF91B and or Rechargeable NiMH Battery E-Block | 8.4 V DC | 250 mAh
Nedis brand in Holland, and the distributor for Europe of these batteries, it does not have any technical datasheet about any NiMH that they distribute.

They are presenting as datasheet per battery type, a document this inducing a simple description and a photograph.
Nedis brand in Holland this mention:
Precharged and this might translate also as Low self discharge.
Product packaging totally undocumented, no indication of actual product characteristics.
Number of recharge cycles = unknown.
Few dealers mention two years warranty.
I do offer these details so other people
to not waste time and energy about discovering a technical datasheet.
BANM9HF91B
Date First Available: 4 Sep 2018
They are not product reviews available, anywhere.
Older stock in card blister = transparent plastic.
New stock in paper box with open cut window. (Due fresh European Union norm this ban the use of plastic at products packaging) latest known EU compliance certificate at 09-
2024.
In theory, all stock at paper box packaging this is 12 months old today.
All information's they are 100% accurate, I did contact the brand in person, at September
2025.