how long does a 4000 mah power bank last

Introducing our new 4000mAh power bank, designed to keep you charged on the go. With its high capacity, this power bank is capable of providing multiple charges to your devices, including smartphones, tablets, and other electronic gadgets. On average, a 4000mAh power bank can provide approximately 2-4 full charges to most smartphones, allowing you to stay connected and powered up throughout the day without needing to find a power outlet. This compact and portable power bank is perfect for traveling, camping, outdoor activities, and everyday use. Equipped with fast-charging technology, our power bank can deliver a quick and efficient charge to your devices, saving you time and keeping you connected when you need it most. Its sleek design and durable build make it a reliable companion for all your power needs. Say goodbye to low battery anxiety and welcome the convenience and peace of mind that our 4000mAh power bank has to offer.