6.0V 4000mAh Velux battery insert for 941978

Replacement rechargeable 6v 4000mah battery insert for velux solar window blinds.
This pack has an increased capacity over the original 3500mAh HHR-370 AH Panasonic battery, and should give longer duration in use.

BATTERY for SOLAR SKYLIGHT 6V NIMH 941978 3.8AH
Velux 04AT01BG
Velux 941978

Battery for solar blind Solar Skylight 6V NIMH 941978

NB: to fit this pack, soldering is required for the 2 terminals.

Dimensions:
Length: 203mm
Width: 36mm
Depth: 18mm