In this article, we will discuss the power support provided by different USB chargers, cables, and devices.
Power Delivery (PD) is a charging standard that allows devices to charge rapidly through a USB connection. It facilitates communication between two devices to negotiate power settings, enabling them to determine the maximum amount of power that can be drawn from the charger. Power Delivery starts at 5V and can be configured up to 20V. It can handle up to 60W using a standard USB-C cable and up to 100W using a designated EMCA cable.
The following table outlines Power Rules for both USB PD 2.0 and USB PD 3.0
| Supply Sources | Voltage | Voltage | Voltage | Voltage |
| 15 W supply | 5 V | 9 V | ||
| 27 W supply | 5 V | 9 V | 15 V | |
| 45 W supply | 5 V | 9 V | 15 V | 20 V |
The article solely compared the power delivery of the device, without measuring the charging time for the device or the battery.
We were using the following USB Power Meter Tester
We used the following chargers and batteries in our testing.
| Charger | Ports | Pic |
|---|---|---|
| RAVPower 64 W | 2 X USB C 2 X USB-A |  |
| Anker 711 Charger (Nano II 30W) | 1 X USB C |  |
| Apple 20 W | 1 X USB-C |  |
| INIU Power Bank BI-B5 | USB-C (20 W) 2XUSB-B (22.5W) |  |
| Anker 313 Wireless Charger | 1 X USB-A |  |
| Anker 313 Wireless Charger (Pad) – Anker Canada | 1 X USB -A |  |
| Anker 40W Car Adapter | 2 USB C |  |
| Fast 3.0 HNT-PD2002 | 1 x USB C 1 X USB A |  |
Charging iPad Pro, 12.9-inch (5th generation)
| No | Device | Input Port | Charger | Charger Output | Voltage | Amperage | Wattage |
|---|---|---|---|---|---|---|---|
| 1 | iPad Pro, 12.9-inch (5th generation) | USB-C | RavPower-65W | USB-C | 14.9 V | 2.32 A | 35.3 W |
| 2 | iPad Pro, 12.9-inch (5th generation) | USB-C | RavPower-65W | USB-A | 0.0 V | 0.0 A | 0.0 W |
| 3 | iPad Pro, 12.9-inch (5th generation) | USB-C | Apple 20 W | USB-C | 8.9 V | 2.15 A | 19.2 W |
| 4 | iPad Pro, 12.9-inch (5th generation) | USB-C | INU Battery | USB-C | 9.15 V | 2.11 A | 19.3 W |
| 5 | iPad Pro, 12.9-inch (5th generation) | USB-C | Anker Charger 30 W | USB-C | 14.9 V | 1.95A | 29.1 |
| 6 | iPad Pro, 12.9-inch (5th generation) | USB-C | Fast 3.0 HNT-PD2002 | USB-C | 0.0 A | 0.0 A | 0.0 W |
Apple has included a 20 W charger with the Ipad Pro 12.9 Inch. However, it has been observed that only 9 V PF profiles are utilized by this charger which provides a maximum of 19.2 W (No 3).
On the other hand, if you use the RavPower 65 W charger (No5), PD switches to a 15 V profile and starts charging the Ipad with 35.3 W. This is around 57% more than the original Apple 20 W charger that comes with the device.
Another excellent performer is the Anker 30 W (No 5) which also switches to a 15 V PD profile and supplies a full 29.1 W to the Ipad.
It is important to note that the Ipad cannot be charged with a USB-A to USB-C cable at all (No2).
iPhone 14 PRO MAX
| No | Device | Device Input | Charger | Charger Output | Voltage | Amperage | Wattage |
|---|---|---|---|---|---|---|---|
| 7 | iPhone 14 PRO MAX | Lighting | RavPower-65W | USB-C | 8.78 V | 2.96 A | 26 W |
| 8 | iPhone 14 PRO MAX | Lighting | RavPower-65W | USB-A | 5.08 V | 2.00 A | 10.2 W |
| 9 | iPhone 14 PRO MAX | Wireless PAD | RavPower-65W | USB-A | 5.06 V | 1.42 A | 7.27 W |
| 10 | iPhone 14 PRO MAX | Anker Magnetic PAD | RavPower-65W | USB-C | 8.97 V | 1.09 A | 9.74 W |
| 11 | iPhone 14 PRO MAX | Lighting | INU Battery | USB-C | 9.16 V | 2.16 A | 19.8 W |
| 12 | iPhone 14 PRO MAX | Lighting | OEM Subaru USB Port | USB-A | 5.06 V | 0.91 A | 4.63 W |
| 13 | iPhone 14 PRO MAX | Lighting | Anker 40W Car Adapter | USB-C | 8.90 V | 2.11 A | 18.8 W |
| 14 | iPhone 14 PRO MAX | Lighting | Anker 30 W | USB-C | 8.9 V | 2.96 A | 26.4 W |
| 15 | iPhone 14 PRO MAX | Lighting | Fast 3.0 HNT-PD2002 | USB-C | 8.9 V | 1.97 A | 17.6 V |
The iPhone 14 Pro Max doesn’t come with a charger. However, we’ve noted that the RavPower-65W (No7) and Anker 30W (No14) chargers can provide around 26W of power to the iPhone. This seems to be the maximum charge wattage for the device. It’s worth noting that the charging supply from the OEM Subaru USB Port (No12) is quite weak, with a maximum charge rate of only 4.63W. If you’re looking for a faster charging solution, we recommend the Anker 40W Car Adapter (No13), which can provide a charging rate of 26.4W – almost six times higher than the OEM Subaru USB Port.
iPhone 13 Pro Max
| No | Device | Input | Charger | Charger Output | Voltage | Amperage | Wats |
|---|---|---|---|---|---|---|---|
| 16 | iPhone 13 PRO MAX | Lighting | RavPower-65W | USB-C | 8.82 V | 2.32 A | 20.4 W |
| 17 | iPhone 13 PRO MAX | Lighting | RavPower-65W | USB-A | 5.07 V | 2.03 A | 10.3 W |
iPhone 13 Pro Max is using 20 W with a USB-C to USB-C Cable and 10 W with a USB-A to USB-C.
iPhone 12
| No | Device | Device Input | Device | Charger Output | Voltage | Amperage | Wats |
|---|---|---|---|---|---|---|---|
| 18 | iPhone 12 | Lighting | RavPower-65W | USB-C | 8.81 V | 2.09 A | 18.4 W |
| 19 | iPhone 12 | Lighting | RavPower-65W | USB-A | 5.11 V | 2.25 A | 11.5 W |
| 20 | iPhone 12 | Lighting | INU Battery | USB-C | 9.12 V | 1.74 A | 15.8 W |
iPhone 12 has similar charging patterns as iPhone 13. Max charge wattage is around 18.4 W (No 18)
Canon R5 Battery
| No | Device | Device Input | Device | Charger Output | Voltage | Amperage | Wats |
|---|---|---|---|---|---|---|---|
| 21 | Canon R5 battery LP-E6NH | Lighting | RavPower-65W | USB-C | 5.06 V | 1.38 A | 6.96 W |
New Canon cameras come with a USB-C port where you can charge the internal battery without removing it from the body. Unfortunately, the charge rate is very low, around 7 W.
External INU Battery
| No | Device | Device Input | Charger | Charger Output | Volts | Amperage | Wats |
|---|---|---|---|---|---|---|---|
| 22 | INU Battery | USB-C | RavPower-65W | USB-C | 8.91 | 2.01 | 17.9 W |
This battery is a nice surprise. The battery was able to charge the iPad Pro, 12.9-inch (5th gen) No4 with 19.3 W, and charge the iPhone 14 PRO MAX (No 11) with 19.8 W using a USB-C port.
The charge wattage for the battery was around 18 W.
Summary
If you own an iPad Pro, 12.9-inch (5th generation), you would need a charger that can supply at least 36 W of power. Based on our research, the RAVPower 64 W 65 W is the only charger that is capable of supplying 36 W for this device.
For iPhone 14 PRO MAX, you would need a charger that can supply at least 26 W of power. We recommend the Anker 711 Charger (Nano II 30W) for this device. However, if you have multiple devices that need charging, we would suggest the RAVPower 64 W charger.
For any other iPhone, a 20 W charger with a USB-C to Lighting cable would be sufficient.
If you need to charge your device in the car, we would suggest using the Anker 40W Car Adapter, which is six times faster than the Subaru OEM built-in USB-A charger.
For a battery bank, we recommend the INIU Power Bank BI-B5, which has a constant 20 W output. Please ensure that you use a USB-C port for input and output on the battery.
To take full advantage of the fast charging function of your new USB-C devices, you need to use a USB-C PD (Power Delivery) cable that has the Power Delivery protocol. It is crucial to use USB-C to USB-C and USB-C to Lightning cables for optimal performance and try to avoid any USB-A connector on the cable.