Electric power supply assembly for a cordless electric appliance

An electric power supply assembly for a cordless electric appliance, said assembly comprising:

• at least one power storage unit;
• a mounting support having at least one holder for removably receiving said storage unit, said holder having a first engaging surface and said storage unit having a second engaging surface for removably engaging said first engaging surface, said first engaging surface and said second engaging surface defining a contact plane when engaged;
• at least one holder electric contact provided on said holder;
• and
• at least one storage unit electric contact provided on said storage unit, said holder electric contact and said storage unit electric contact providing electrical connection when engaged, at least one of said holder electric contact and said storage unit electric contact providing a contact face aligned in a plane substantially parallel to said contact plane, wherein said holder electric contact and said storage unit electric contact engage and disengage in a connecting direction transverse to said contact plane by pivotal mounting and dismounting of said storage unit with said holder and wherein at least one of said holder electric contact and said storage unit electric contact is resiliently flexible in a direction substantially parallel to said connecting direction.