Yenra laptop power compatibility checklist — September 6, 2026
Original reusable worksheet. Not a product certification or airline approval.

Laptop exact model and manufacturer charging guidance link:
Supported input port:
Accepted voltage/current profiles and recommended power:
Power bank exact model and specification link:
Selected output port and supported profiles:
Output power with only laptop attached:
Other connected devices and documented shared-output allocation:
Cable model and specified power capability:
Legacy DC adapter compatibility explicitly documented, if applicable:
Pass-through arrangement explicitly supported, if used:
Battery nominal energy in Wh:
If converting mAh: capacity and voltage to which it refers:

Runtime estimate
Nominal Wh = mAh / 1000 * nominal V:
Delivered fraction and evidence/assumption:
Delivered Wh = nominal Wh * delivered fraction:
Representative laptop input draw W and measurement method:
Additional hours = delivered Wh / input W:
Internal battery net charging excluded from estimate? Explain:
Measured task, brightness, peripherals and power mode:
Measured runtime, date and differences from estimate:

Charging checks
Behavior with supported original supply:
Behavior with bank alone and compatible cable:
Charging message and operating-system charge limit:
Behavior at idle versus intended workload:
Battery condition and service action if needed:

Before travel
Airline and current policy URL/check date:
Allowed Wh, quantity, carry-on packing and use restrictions:
Rating legible and terminals protected:
Unresolved compatibility questions: