I received this power bank from the manufacture for an honest review be it positive or negative. Top reviewers are often asked to review battery packs and one of the benefits of being asked to test different power banks is that it gives me an opportunity to compare them to each other using the same charging test, so I can compare them using "apples to apples" comparison. This set of tests allows me to provide unbiased results as the numbers speak for the performance of each unit. Based on these tests I rate this power bank as good - it is not the fastest but it has good capacity and performed equally well for both my Android and Apple mobile devices.
My methodology is to charge each mobile device on each port of the unit for 10 minutes and measuring how much each unit was charge in that 10 minute period. In addition I tested charging two mobile devices at the same time. Each line in the table below represents a separate 10 minute test.
I use Battery App by Elvison to determine how each device recognized the charging source. 'AC' status means the charging is at full charging rate. 'USB' status indicates charging at a lower charging rate. 'Discharging' status means that the charging rate is below the power that the device is consuming so it slows down the discharge rate but does not re-charge.
➨ General features:
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Poweradd 12000mAh external battery weighs 9.3 oz. Its size is 4.375" x 2.75" x 0.875". The pack has two USB output ports labelled 1A and 2.1A.
The external battery comes with coiled charging cable which is 7" when coiled and 4 connector tips (USB, micro USB, Apple, and one other which documentation does not identify and I don't recognize).
The power pack does not have auto power off. I left turned on and not attached to any device, 45 minutes later it was still on. Holding the button down for several seconds turns it off.
➨ Test Results:
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✔ Samsung Galaxy 7.7 tablet
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Port 1A ~~~~ AC ~~~~~ 3% change in charge in 10 minutes
Port 2.1A ~~ AC ~~~~~ 4% change in charge in 10 minutes
✔ iPad Mini tablet
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Port 1A ~~~~ AC ~~~~~ 2% change in charge in 10 minutes
Port 2.1A ~~ AC ~~~~~ 3% change in charge in 10 minutes
✔ Samsung Galaxy 7.7 tablet and iPad Mini tablet at the same time
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Port 1A ~~~~ AC ~~~~~ 3% change in charge in 10 minutes (Galaxy Tablet)
Port 2.1A ~~ AC ~~~~~ 2% change in charge in 10 minutes (iPad Mini)
Port 1A ~~~~ AC ~~~~~ 2% change in charge in 10 minutes (iPad Mini)
Port 2.1A ~~ AC ~~~~~ 3% change in charge in 10 minutes (Galaxy Tablet)
➨ Key finding:
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✔ This power pack performance falls in the middle of the power packs I have tested for both Galaxy 7.7 Tablet and iPad Mini. It is a good all purposes power pack that can handle both Android and Apple devices.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★
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