Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Aukey Sprint Ultra (26800 mAh, 65 W, 99.16 Wh)

Aukey Sprint Ultra

26800 mAh, 65 W, 99.16 Wh


Question about Aukey Sprint Ultra

avatar
alex.bv

3 years ago

Very happy to hear about this product for my Macbook Air. Thank you. The newest Macbooks (2018-present) have 4379 mAh, does that mean you can charge them 6 times on one full charge of the Aukey? Is this correct?

Avatar
avatar
Anonymous

3 years ago • purchased this product

purchased this product
Helpful answer
Hello, energy is measured in Wh (or joules) and this powerbank has 99.16Wh (26800mAh at 3.7V, the voltage of the Li-ion cells). The MacBook Air has a battery with 49.9Wh (4379mAh at 11.4V, so three cells in series). This means you will be able to charge your MacBook slightly less than 2 times, as 10-20% of the energy is lost (converted to heat) during charging.
avatar
gschwinds

3 years ago

However, the 4379 mAh are at the lower end. There are also devices with much larger batteries.
When calculating how many times you can charge a device, you should also take into account the losses during the charging process. It is not possible to transfer 100% of the energy from the power bank to the device to be charged. Expect a loss of about 20%. In addition, you cannot drain a 26'800 mAh battery down to 0%.
avatar
karachio

3 years ago

Hello, rather no. I estimate 3-4 charges. Energy is lost during charging, that's normal.