This experiment is to compare both Anker Power Delivery and RavPower Power Delivery Portable Battery. Since 2015, I have fallen in love from Anker, I have brought so much Anker product since then, i.e. Lightning cable, micro USB cable, 10,000 mAh portable battery and charging hub. The problem is, I been struggling to charge some of my large device such as iPad and Laptop on the go, a Power Delivery needed for charging these. But a year before, there is nothing like that exist. In  2017 Anker announced a portable power delivery charging device, and this makes me very excited to get a hand on this product.

For evaluation on this product, I used a dummy USB manufactured by DROK, and drain the portable charger with different amp settings on DROK such as 0.5A, 1.0A, 1.5A, 2.0A, 2.5A and 3.0A; for further verification, I have used Muker-J7 to tested on iPhone charge count with each charge cycle. At the same time, I have also purchased a RavPower 26,800mAh Power Delivery portable charge for comparison.

Anker PowerCore 26,800mAh PD		RavPower 26,800mAh PD
Cell Voltage	3.6V	Cell Voltage	Unknown (Might be 3.7V)
Capacity	26,800mAh / 96.48Wh	Capacity	26,800mAh / (Might be 99.16Wh)
Technology	IQ Charge 2.0	Technology	iSmart 2.0
PD Output	YES	PD Output	NO
PD Output	5V/3A, 9V/3A, 15V/2A, 20V/1.25A	PD Output	5V/3A, 9V/2A, 15V/2A, 20V/1.5A
USB Output	MAX 5V/3A per port	USB Output	MAX 5V/2.4A per port
Input	5V/3A, 9V/3A, 15V/2A, 20V/1.5A	Input	5V/3A, 9V/2A, 15V/2A, 20V/1.5A
Advertise Charge	iPhone 7: Upto 10 Times iPad Air  : Upto 2 Times https://goo.gl/sHkCmb	Advertise Charge	iPhone 7: Upto 9 Times iPad Air  : Upto 1.8 Times https://goo.gl/dh1Zan

 

Figure 1: Tested result from both Anker (left), RavPower (Right) portable battery with 3.0A
100% Efficiancy	99.16WhX1000/5.12V = 19,367mAh		100% Efficiancy	96.48WhX1000/5.15V = 18,734mAh
Tested Efficiancy	0.5A	18,728mAh = 96.70%	Tested Efficiancy	0.5A	16,452mAh = 87.81%
	1.0A	18,680mAh = 96.45%		1.0A	16,405mAh = 87.57%
	1.5A	18,528mAh = 95.67%		1.5A	16,280mAh = 86.90%
	2.0A	18,317mAh = 94.58%		2.0A	16,155mAh = 86.23%
	2.5A	18,195mAh = 93.95%		2.5A	16,004mAh = 85.43%
	3.0A	18,026mAh = 93.08%		3.0A	15,987mAh = 85.34%
iPhone Test	9.2 Times / 10 Times		iPhone Test	8.1 Times / 9 Times