The present invention relates to a modular charging system including a wall-mounted outlet-preserving charger for charging additional accessories such as battery blocks, wireless device chargers, supporting chargers for wearable devices such as watches, and car chargers, each for use independently or in combination with electronic devices. The present invention typically includes a wall charger with one or more electrical outlets on the front face so the use of the wall outlet is not lost. The wall charger of the present invention is suitable for use in any major country and may be adapted to the outlet configuration and voltage of those countries.