How Long Can a Regular Power Bank Last? The. Take the charging capacity of 5000mAh and 500 times charge-recharge as an example; if the portable charger is charged If you’re using a 200mAh battery, you can expect it to last for about two hours. This is based on the assumption that you’re using it continuously at full power. If you’re using it intermittently or at a lower power level, it will last longer. How long your 200mAh or 3350mAh battery lasts also depends on how well you take care of it. Krisdonia 50000mAh laptop power bank. Key details: Capacity: 50000mAh. Output: 2 x DC, 2 x USB, 1 x USB-C, 65W max. Dimensions: 19.5 x 15 x 2.8cm, 1.2kg. The Krisdonia 50000mAh Laptop Power Bank But simply charging a power bank via a low-powered laptop’s USB port can add up to 10 hours to the total charging time, especially if it’s a high-capacity power bank. 5. Experiment With a Different Wall Charger Q: How long does it take to charge a 20000mAh power bank? A: The charging time for a 20000mAh power bank can vary depending on the input current and the type of charging method used. On average, it can take anywhere from 6 to 10 hours to fully charge a 20000mAh power bank with a standard 2.4A charger. For example, the long-lasting battery of our 5000mAh power banks can retain up to 90% of their original capacity even after 500 days of consecutive daily use. Furthermore, featuring wide compatibility, our 5000mAh power banks work with a whole range of devices, including iPhone 11/12/13, AirPods, Huawei, Samsung and many more. Our travel friendly, charge anywhere slim portable battery puts one extra charge right in your pocket. It compatiable with both iPhone and Android. Simply connect your device and enjoy your extended battery life. The package includes one slim portable battery and one micro-USB to USB charging cable. Juice up your devices with the onn. How Long Does It Take a 10000mAh Power Bank to Charge? The average charging time for a 10000mAh power bank is somewhere around 3 hours. For instance, it takes 3.5 hours to charge the Samsung 10000mAh power bank. However, this time can change depending on the charging technology. Qwif.