Anker vs RavPower Power Delivery

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

Advertise Charge iPhone 7: Upto 9 Times

iPad Air  : Upto 1.8 Times


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