Depends on exactly how long you need to power it, and the kind of laptop (mostly what charger it uses).
One option is a UPS, another would be a simple battery bank if your laptop has USB type C charging.
Depends on exactly how long you need to power it, and the kind of laptop (mostly what charger it uses).
One option is a UPS, another would be a simple battery bank if your laptop has USB type C charging.