Pineng PN-920 20000mAh Review

Couple of weeks back I have bought the Pineng PN-920 from 11Street for a discounted price, but too bad it doesn't comes with a free pouch. It is original and can be verified at pineng official website http://pineng.com.my/Product-Verification. It is huge, bigger and heavier than most of the phones.

PN-920

The light is blue for the LCD screen on the PN-920 and it can be quite irritating and uncomfortable to the eyes due to its brightness. The LCD screen will display some information whenever you perform the following:

• Hold the button for a couple of seconds (Display the remaining percentage with the word "OUT")
• Double click the button (Display the remaining percentage with the word "OUT" and turn on the flashlight)
• Charging the PN-920 (Display the remaining percentage with the word "IN")
• Charging the phone with 5V 1A port and/or 5V 2.1A port (Display the remaining percentage with the word "OUT" and shows 5V 1A and/or 5V 2.1A)

The LCD display can be turned off by holding the button for a couple of seconds and turning off the flashlight can be done by clicking the button once. For more details about PN-920, you can check it out at http://pineng.com.my/PINENG-PN-920-20000mAh-Power-Bank-Black.

** NOTE: The following result may not be accurate due to the measurement are done through software and not dedicated hardware tools. The result is just to give you a general idea on how well it performs.

** NOTE: Using different micro usb cable may affect the charging speed. Other than that, the phone charging speed is slower when charging above 80%.

Measuring on how many times it can fully charged a phone may not be that accurate, this is due to different phones have different battery capacity and some phones consume more battery in the background. So I hope that the following test will give you a general idea on how many times it can fully charge a phone and how fast it can charge a phone with 5V 1A. To test how well PN-920 perform, the following are used:

• Samsung Galaxy Note 5
• Pineng PN-920
• Micro usb cable (Pineng)
• Battery Monitor Widget
• Stopwatch

This test will be done in every 1 hour time frame to charge the Samsung Galaxy Note 5 while plugged on 5V 1A port on the PN-920. The phone screen, wifi, data is turned off and only the default applications and Battery Monitor Widget is running. Same micro usb cable is used throughout the test.

No.	Phone Battery (%)	Phone Battery (°C)	PN-920 Battery (%)	State
1	21	30.3	90	Charging
	66	32.8	83	Unplugged
2	20	31.6	83	Charging
	66	33.0	76	Unplugged
3	21	32.4	76	Charging
	67	35	70	Unplugged
4	20	29.8	70	Charging
	66	32.3	60	Unplugged
5	21	30.4	60	Charging
	65	33	50	Unplugged
6	21	30.8	50	Charging
	67	33.3	36	Unplugged
7	22	31	36	Charging
	67	34.5	26	Unplugged
8	22	31.5	26	Charging
	67	34.5	19	Unplugged
9	20	30.4	19	Charging
	66	33.8	11	Unplugged

Based on the table above, it seems that the battery percentage on the PN-920 drop a lot when it is below 70%. In 1 hour time frame, the battery percentage increased between 44-46% for the Samsung Galaxy Note 5 with 5V 1A port. It will need more than 2 hours to fully charge the phone from 0% to 100%, which is very slow. So it is advisable to plugged to the 5V 2.1A port on the PN-920 to charge faster. But do take note that charging faster would lead to your PN-920 battery deplete faster and some of the very old phones can only accept up to 5V 1A.