Portable power station basics: sizing, charging and outage use

What you’ll need

• A list of devices to back up
• The wattage label on each device
• A solar panel if recharging off-grid

Step by step

1. 1

   List your must-run loads

   Typically phones, laptop, router, a lamp, and possibly a CPAP or fridge. Write down each device's watts.

2. 2

   Separate watts from watt-hours

   Watts is how much it can deliver at once; watt-hours is how long. You need enough of both — check the surge rating too.

3. 3

   Charge it fully before you need it

   Top the unit up and set a calendar reminder to recharge every few months so it is ready when the power goes out.

4. 4

   Practise before an outage

   Run your fridge or router off it for an hour on a normal day so you know the real runtime, not the marketing figure.

5. 5

   Add solar sensibly

   A folding panel extends runtime during a long outage, but output depends heavily on sun angle and cloud cover.

Energy-saving tips

• A power station is resilience, not a bill-reduction device — treat it as insurance.
• LiFePO4 chemistry generally tolerates far more charge cycles than older lithium types.
• Never run one indoors with a fuel generator; the power station itself is safe indoors, combustion generators are not.