Are Portable Chargers Allowed In Carry On Luggage. Normally the output voltage is 5V so the allowed capacity would be 20000mAh. This isnt a guarantee.

For more information see the regulations for dangerous goods Table 23. Therefore if your laptop charger has batteries airport security may prevent you from keeping the charger in check-in baggage. Normally the output voltage is 5V so the allowed capacity would be 20000mAh.
This includes portable chargers and external battery chargers for mobile phones tablets and laptops.
ALL Zendure portable chargers are under 100Wh and can be taken on a flight. Yes Glass. Hand luggage restrictions at UK airports - carry-on luggage checked-in baggage restricted items and liquids electronic devices carried from Turkey Lebanon Egypt and Saudi Arabia. You cannot keep them in check-in baggage.

