When choosing power banks for phones, make sure to keep these points in mind:
Capacity: Compare the power bank’s milliamp-hour (mAh) rating with your phone’s battery capacity. If your phone has a 3000 - 4000 mAh battery, a 10,000 mAh power bank can typically provide about two full charges.
Portability: Higher capacity usually means a larger, heavier unit. Decide if you need a compact option for everyday carry or a larger one for extended outings.
Output & Fast Charging: Check the output rating (in watts) to ensure it matches your phone’s charging requirements. If your phone supports fast charging, look for a power bank with the appropriate fast-charge protocol.
Port Compatibility: Make sure the power bank offers the correct port (USB-C, Lightning, or micro-USB) or that you have the right cables available.
Safety & Build Quality: Opt for a model with built-in safety features like overcharge, overcurrent, and short-circuit protection.