An mAh unit represents one-thousandth of an ampere-hour or 3.6 Coulombs. We typically use mAh hours to measure the size of an electrochemical system, like an electrical battery. A watt-hour tells you how much energy a device consumes, while mAh describes its storage or charge capacity.
How Long Does It Take to Charge a 30000mAh Power Bank? A 30000mAh power bank may require between 18 and 30 hours to fully charge using a standard 5V/2A charger. On the other hand, using a fast charger like Quick Charge 3.0 or USB-PD charge may reduce the time for charging the power bank to around 6-8 hours.This is the LICORNE Portable Solar Charger, the ultimate power solution for outdoor enthusiasts. With an impressive 30000mAh capacity, this power bank offers long-lasting power in a compact design. It features 66W fast-charging capabilities, allowing for quick device charging.So I purchased a battery bank that says its 30,000mAH from Amazon and it does support 60w charging. My question is if my steam deck is 99% full and the steam deck is pulling all the power from the battery, Should the bank last more than 4 hours. So for the last few nights i noticed the battery draining really quick on the bank. jDeDQW.