Searching the forum may not proof very easy.
Wilko was very kind to check my 553ELX cameras and came up with an astonishing conclusion.
The contacts and wiring in the battery lid are insulated by some sort of foam.
That foam is falling apart sometimes "helped" by neglected and leaking batteries causing a short circuit.
There are two ways to solve this problem:
Try to fit or have fitted better material to insulate the contacts and wiring in the existing battery lid.
Order a new battery lid.
Keep in mind Hasselblad did not change the construction which may lead to new problems after several years.
Hasselblad UK has a new black battery lid in stock at 64 GBP plus VAT.
You can contact HB UK :
service@hasselbladco.uk
If you decide to contact HB UK Give my regards to Paul Gould who deals with parts and service.
Parts that have to be ordered like a chrome battery lid may demand much higher prices due to the fact that all parts for V series cameras are ordered from independent suppliers.
Of course if you have the option to return the camera that may be the third solution.
Most EL cameras with AA type batteries are likely to develop this problem.
If the 553ELX suits you a repaired or new battery lid may be the thing to go for.
Paul