Home / Devices / Anker / Anker Prime Power Bank 27,650mAh (250W)

Independent model diagnostic center

Anker Prime Power Bank 27,650mAh (250W): test what you can before replacing anything.

Use DeviceOK to compare documented power-bank energy/output with a device's energy and wattage needs while leaving PD negotiation, safety and battery health to Anker's hardware and support.

Start with evidence

Relevant live checks

Power Bank Charge Count CalculatorEstimate how many full-equivalent device charges a power bank can provide from entered Wh values and conversion efficiency.

Charger Wattage MatchCompare a device's entered power requirement with a charger's rated wattage while keeping USB-PD/PPS and voltage-profile limits explicit.

USB Voltage Current to Watts CalculatorCalculate watts from an entered USB or charger voltage/current profile.

Battery Runtime CalculatorEstimate runtime from battery watt-hours, average load and conversion efficiency.

USB-C Cable Power Rating CheckCompare an entered cable wattage rating with the power you want to carry, while keeping protocol/e-marker limits explicit.

Model-specific facts

Facts that change how you test it

Anker lists a total capacity of 27,650mAh for model A1340.
Anker specifies two USB-C ports, one USB-A port and up to 250W total output for this model.

Connections: 2 × USB-C · 1 × USB-A · charging-base pogo interface where supported

Diagnostic focus

Problems this center is designed to narrow

Power bank charges one device but not another
Entered wattage requirement vs output rating
Full-equivalent charge estimate
Cable vs charger/power-bank path
Protocol or battery-health issue requiring Anker support