Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review
Realme, the entry-level smartphone sub-brand of Oppo, launched its very first power bank at its launch event for the Realme Q smartphone.
Simply called the Realme Fast Charge Power Bank, it comes in three colors - a bright yellow, a flashy red, and the classic gray, with oversized brand logo dominating the front.
The Realme Fast Charge Power Bank has two ports, a USB-C port and a USB-A port. The USB-C port doubles as an input and output port that supports 18W fast charging, while the USB-A port supports 18W output. According to Realme, it will charge the iPhone XS Max from empty to full in 56 minutes.
Here's our review.
I Unboxing
It comes with a straight forward and clean package design.
Main features and specifications. With a note on the bottom: "Enabling 18W fast charging requires charging device to support related fast charging protocol."
Package contents: power bank, USB-A to USB-C cable, and user manual.
A short USB-A to USB-C cable.
Eye-catching saturated red and oversized logo.
Specifications on the back in small fonts, on contrary to the front.
Model: RMA137
Battery Capacity: 10000mAh (Typ) / 9800mAh (Min)
Rated Power: 34.4Wh
Rated Capacity: 6200mAh (5V/2A)
Fast Charging Input: 9V/2A (Max)
Rated Output: Normal Charging (Dual-Port) 5V/2A
Fast (Dual-Port) Charging Output: 5V/3.1A (Max)
Fast (Single-Port) Charging Output: 5V/3A, 9V/2A, 12V/1.5A (Max)
Fast (Dual-Port) Charging Output: 5V/3.1A (Max)Fast (Single-Port) Charging Output: 5V/3A, 9V/2A, 12V/1.5A (Max)
From left to right: USB-A output, USB-C input/output bidirectional port, four LED indicators, and a power button.
Close-up of the LED indicators.
It has a nice hand-feel.
Size comparison with the iPhone XS Max.
Thickness comparison to a 1 Yuan RMB coin.
It weighs 230.2g/8.1oz.
It is relatively heavy in the 10000mah-range power banks.
II Review
1. Charging protocols test
With ChargerLAB Power-Z KT001 USB Power Monitor, we know that its USB-A port supports Apple 2.4A, DCP, QC 2.0, QC 3.0, AFC, FCP charging protocols.
USB-C supports Apple 2.4A, DCP, QC 2.0, QC 3.0, AFC, FCP, as well as USB PD 3.0 charging protocols.
USB-C output supports 5V/2.4A, 9V/2A, 12V/1.5A.
2. Compatibility Test
1) USB-C output
Use the USB-C port to charge the iPhone 11 Pro Max, we are getting 9.11V 1.97A 18.01W, under PD protocol.
Use the USB-C port to charge the Honor 8, we are getting 9.1V 1.46A 13.37W, under FCP protocol.
Use the USB-C port to charge the Samsung Galaxy S10+, we are getting 9.1V 1.49A 13.6W, under PD protocol.
Use the USB-C port to charge the iPad Air3, we are getting 12.1V 1.42A 17.25W, under PD protocol.
Use the USB-C port to charge the iPad Air2, we are getting 5.11V 2.43A 12.46W, under Apple 2.4A protocol.
Use the USB-C port to charge the Nintendo Switch, we are getting 12.1V 1.06A 12.93W, under PD protocol.
Realme Fast Charge Power Bank offers great compatibility charging PD-supported devices with its USB-C port.
2) USB-A output
Use the USB-A port to charge the iPhone 11, we are getting 5.1V 2.35A 11.99W, under Apple 2.4A protocol.
Use the USB-A port to charge the Honor 8, we are getting 9.1V 1.46A 13.34W, under FCP protocol.
Use the USB-A port to charge the Xiaomi 9, we are getting 9.31V 1.85A 17.25W, under QC protocol.
Use the USB-A port to charge the Samsung Galaxy S10+, we are getting 9.11V 1.48A 13.55W, under AFC protocol.
The USB-A port of the Realme Fast Charge Power Bank offers great compatibility with QC、FCP、AFC support.
3) USB-C input
Using the Apple 18W PD charger (A1695) to charge the Realme, we are getting 9.03V 1.96A 17.71W, under PD protocol.
Using the Apple 30W USB PD charger (A1882) to charge the Realme, we are getting 8.96V 1.96A 17.59W, under PD protocol. It seems that the max input is limited to 18W.
Using the ZMI 18W QC charger (HA612) to charge the Realme, we are getting 4.99V 2.4A 12W.
3) Multiport output and pass through charging
The Realme power bank locks dual port output at 5V, charging the Xiaomi 9 (USB-C) and Samsung S10+ (USB-A) at 7.56W and 8.81W, respectively.
It also supports pass through charging with input and output locked at 5V.
III Conclusion
More than a look that screams youth and fashion, the Realme Fast Charge Power Bank offers stable charging performance and great compatibility with its multiple charging protocol support. It also supports pass through charging which is nice.
However, its USB-C port and USB-A port does not support independent charging and locked at 5V only. But that's totally acceptable considering its entry-level pricing.
Pros:
Two-way 18W PD charging.
Multiple charging protocol support with both ports.
High quality finish.
Cons:
No independent dual-port charging support.
Source: chongdiantou
