2. One For All

The idea behind the N-Charge Power System is incredibly simple yet extremely clever. The system consists of a high-capacity (10Ah) Lithium-ion battery that Valence has packed into a stylish, slim and sturdy case as well as a notebook-specific adapter. Maker Valence Technology features a compatibility guide on its website indicating for which laptop models corresponding adapters are available.

The notebook is supplied with power from the battery via this adapter

The battery is charged and hooked up to a notebook using the appropriate adapter, which is looped in between the notebook's charging device and the power port on the notebook.