Review USB battery box Chuwi Hi-Power 10050mAh power bank with QC3 M-10000

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Chuwi has a lot of products, here I am testing on of their power banks. It supports Quick Charge both for input and output.
The specifications are:
I got it from Chuwi



How does it look

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The power bank is delivered in a brown cardboard box.

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It contains the power bank, a usb cable and a instruction sheet.

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Both input and both output usb connector is placed at one end. The micro is for charging the power bank and the USB-A for charging other devices from the power bank. Below the micro usb connector are 4 led for the power gauge. The button is for showing capacity and turning the output on.
Both input and both output usb connector is placed at one end. The micro is for charging the power bank and the USB-A for charging other devices from the power bank. Below the micro usb connector are 4 led for the power gauge. The button is for showing capacity and turning the output on.

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The other end has some specifications and aproval marks.

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Measurements


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The output is rated for 3A at 5V and can deliver about 3.5A before it turns off, this looks fine.

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At 9V it is supposed to deliver 2A and delivers 2.4A, again it looks good.

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At 12V it is supposed to deliver 1.5A and delivers 1.7A before output starts dropping, overload protection kick in at 2A.
All the jumping up and down when it drops down to 5V is my circuit trying to reengage 12V.

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The usb output can be used while charging and will support full QC output.

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It can deliver 0.5A for about 13 hours, this is around 32Wh.

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Doubling the current increases the output to about 33Wh.

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At 2.5A the total power is down to about 29Wh, it is about 2 hour with this current.

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Even at 12V output it will maintain a good efficiency, output energy is about 30Wh

10ohm

At 0.5A the noise is 6mV rms and 61mVpp,m this is a very good value.

5ohm

At 1A the noise is 21mV rms and 103mVpp.

2ohm

At 2.5A the noise is 74mV rms and 233mVpp.

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At 9V and 0.9A the noise is 98mV rms and 375mVpp.

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At 12V 1.2A the noise is 250mV rms and 767mVpp, at 12V the noise is on the high side.

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My first charge was from a power supply without any coding on the usb bus, the box did only draw about 0.5A.
This means it will not blindly draw a high current, but looks for codings about acceptable current.

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Using a charger with DCP coding the current was increased to about 1.8A

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And the same for a charger with Apple 2.4A coding.

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With a QC3 charger it also increased the voltage a bit, reducing the charger time to about 4 hours



Conclusion

This power bank looks good, it can deliver rated current and has a good overload protection. The output uses automatic coding, this means it can charge just about anything at full speed. When charging itself it can use an high power charger, but it can also be charged from a computer usb connector without damaging the computer. The only downside is the high noise when using Quick Charge this may interfere with a few phones.

I will rate it a good power bank (If the noise at 12V QC had been lower it would have been very good).



Notes

The power bank was supplied by Chuwi for review.

Read more about how I test USB power supplies and chargers