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The Ravi 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger’s Battery Can Charge the Google Pixel Phone over USB Power Delivery But Not Consistently

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Product Review

The RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger by RAVPower comprises of a USB Power Delivery based portable battery as well as a USB Power Delivery based AC charger which uses a USB Type-C connector for charging. Here we will use only the RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger's portable battery to charge the USB Power Delivery enabled Google Pixel phone and see how it fares with the phone.

The RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger battery starts communicating with the Google Pixel over USB Power Delivery by constantly showing that it supports only a single 15 watts (5 volts @ 3 amps) power profile.

After a hard reset is done, the Google Pixel does requests power but not one of the PDO's supported by the charger, which is then rejected.

While the Google Pixel is being charged with its battery fully drained, the current is observed to fluctuate before charging at around 3 amps within the first 20 seconds. In the next 20 seconds, the current steadily drops to around 1.5 amps.

Since we are not able to get the RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger's battery to charge the Google Pixel correctly the first time over USB Power Delivery, we reconnected the two devices to see if there would be any change in behavior.

We again observe initially the same constant advertising of 15 watts (5 volts @ 3 amps) from the charger battery but after a while the Google Pixel does request to pull 15 watts (5 volts @ 3 amps) which is accepted by the battery.  Resets occur early on after the initial power request from the Google Pixel.

However as charging goes, the charger battery declares that it supports not only the 15 watts (5 volts @ 3 amps) it initially declared but also four other power profiles: 27 watts (9 volts @ 3 amps), 28.8 watts (12 volts @ 2.4 amps), 31.5 watts (15 volts @ 2.1 amps), and 30 watts (20 volts @ 1.5 amps).

The Google Pixel then requests to draw 15 watts (5 volts @ 3 amps) from the battery which it accepts.

While the RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger battery charges the Google Pixel with the phone's battery being fully depleted, we can see that the current charges to around 3 amps during the first 10 seconds.

 

The RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger battery works with the Google Pixel at the second attempt but the entire USB Power Delivery negotiation is far from being clean.

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