Electrical connection systems

An electrical connector assembly to support and form an electrical connection with a portable electronic device, the electrical connector assembly comprising:

• a power connector having one or more electrical contacts to deliver electrical power to a portable electronic device when the power connector is engaged with a corresponding device connector in an electrical connector receiving assembly of the electronic device;
• and
• a protruding support for the electronic device that is insertable into a recess in the connector receiving assembly in order to engage the power connector with the corresponding device connector, the support comprising a support surface extending in a plane substantially parallel to the one or more electrical contacts of the power connector, and a pair of side walls each having an inner surface extending in a plane substantially transverse to the support surface,
• wherein at least one of the support surface and the inner surfaces of the side walls is spaced from the power connector and formed with part of a latch arrangement that receives a corresponding part of the connector receiving assembly to releasably retain the protruding support within the connector receiving assembly.