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Model: UGREEN - Nexode 130W 20000mAh Power Bank with Smart TFT Display, Portable Charger for Laptops, Tablets, Cell Phones - Black
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Sort: Lowest to Highest | Last Updated 5/8/2026, 09:23 PM
How many watt-hours is this? Airlines are restricting lithium batteries on-board to lower capacities. Southwest only allows 100 watt hour batteries in the cabin effective 04/20/26. So nice of them to use a different metric for restrictions than all power banks advertise!
EDIT: Google says: "A standard 20,000mAh power bank typically contains 74 Watt-hours (Wh) of energy." Same question shows a 26,000mAh power bank is still just under 100 watt hours.
How many watt-hours is this? Airlines are restricting lithium batteries on-board to lower capacities. Southwest only allows 100 watt hour batteries in the cabin effective 04/20/26. So nice of them to use a different metric for restrictions than all power banks advertise!EDIT: Google says: "A standard 20,000mAh power bank typically contains 74 Watt-hours (Wh) of energy." Same question shows a 26,000mAh power bank is still just under 100 watt hours.
The watt-hour is the measure that's actually meaningful for portable batteries, which is why they use it. "Capacity" is kind of meaningless since voltage is a central part of the equation. Voltage of internal batteries x capacity (20000 x 3.7)/1000, but only for Li-Ion. LiFePO4 batteries would be 3.2V, so you could take a 30000 mAh on board. If they just restricted you based on mAh, they'd have to have different values based on the type of battery (e.g. NiMH is 1.2v)
PS Google is apparently assuming "standard" is Li-Ion
Last edited by Ion Control May 8, 2026 at 10:29 AM.
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EDIT: Google says: "A standard 20,000mAh power bank typically contains 74 Watt-hours (Wh) of energy." Same question shows a 26,000mAh power bank is still just under 100 watt hours.
The watt-hour is the measure that's actually meaningful for portable batteries, which is why they use it. "Capacity" is kind of meaningless since voltage is a central part of the equation. Voltage of internal batteries x capacity (20000 x 3.7)/1000, but only for Li-Ion. LiFePO4 batteries would be 3.2V, so you could take a 30000 mAh on board. If they just restricted you based on mAh, they'd have to have different values based on the type of battery (e.g. NiMH is 1.2v)
PS Google is apparently assuming "standard" is Li-Ion
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