IKEA Stenkol ( Type E2020) this is the
suggested charger for all three models of IKEA LADDA NiMH.
Pulsing white: Charging is in progress.
Steady white: Charging is complete.
Flashing red: Error, such as a damaged or non-rechargeable battery.
Bellow there is a photograph of Stenkol charger back plate.
If you read my article here ...
https://www.ittsb.eu/forum/index.php?topic=2163.0You will discover of why
it is essential these cells to be charged with any charger this is close to the charging potentials of IKEA Stenkol.
LADDA cells chemistry
this cannot tolerate rapid charging.
LADDA cells fast charge this should be made at not higher current
than double, this written over its one battery cell.