How Many Times Can I recharge a Phone with a 40000mAh Power Bank?

Preface:

In today's modern life, mobile devices have become an important part of our lives, such as smartphones, tablets, and laptops. But these devices have limited battery life, and at critical moments, they often run out of power when we need them most. At this point, the power bank becomes a powerful tool that can provide additional power to our devices so that we can continue to use them.

However, capacity is a key factor when we consider purchasing a power bank. An uncommon capacity specification is 40,000mAh, but what does that really mean? If you own a 40000mAh power bank, how many times can you charge your phone? This is exactly what this blog is about.

Every day, we are exposed to between 5000 and 10,000 advertisements. In most of these ads, bold claims made by manufacturers about the features and performance parameters of their products.For example, the bread or cereal you buy - manufacturers often claim it contains all the vitamins and nutrients you need every day. The actual content of vitamins and nutrients in it is not as good as eating an apple.Similarly, in the field of power bank, the most commonly publicized indicator is charging capacity.

Today, I’ll provide a way to bust these false claims. So that you have the best knowledge when buying a new product.

Formula:

Glossary：

3.8V--Phone Battery Voltage,Usually it is 3.8 or 3.7, no need to modify it

5V--Power Bank Voltage,Usually it is 5, no need to modify it.There will be detailed introduction on the packaging box of the product.

0.85--Electric energy conversion efficiency. This is related to the material and power of the power bank, as well as the manufacturing process. Of course, the charging cable also has a great impact on this value.

Example:

The product we sell is a 40,000mah power bank.

The battery capacity of iPhone 14 pro is 3200mah.

Battery capacity and recharge times of Popular Smartphones:

Conclusion:

Congratulations, you now know how to avoid false advertising. Try using the knowledge you have learned to calculate how many times your mobile power bank can charge your phone.So, back to our title. 40000mAh Power Bank Can I recharge iPhone 14 pro 8 times

Sponsor:

Welcome to buy YKZ 40000Mah Laptop Power Bank for Camping sold by our company. The power bank is also equipped with a 100W fast charging, low-loss power cord.This power bank can perfectly verify the above formula.

References:

Analysis of Power Bank Quality Criteria That Are Important from the Consumer’s Point of View

Samsung Galaxy S23, S23+, S23 Ultra Battery Capacity Data Source

Samsung Galaxy Z Flip5 & Z Fold5 Battery Capacity Data Source

Apple iPhone Battery Capacity Data Source