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
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/153957l7ssa85z5sdz058q-1024x683.jpg)
It comes with a straight forward and clean package design.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/153958xs8hspcqr2hz9tcs-1024x683.jpg)
Main features and specifications. With a note on the bottom: "Enabling 18W fast charging requires charging device to support related fast charging protocol."
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/153958mrclr7rnc9lmwrwe-1024x683.jpg)
Package contents: power bank, USB-A to USB-C cable, and user manual.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/153958o484nzccbgletp84-1024x683.jpg)
A short USB-A to USB-C cable.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/153959oheru71bur4ldy4v-1024x683.jpg)
Eye-catching saturated red and oversized logo.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/153959oztdthrudzjuhjn7-1024x683.jpg)
Specifications on the back in small fonts, on contrary to the front.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154000odzq117qvs0vdd55-1024x681.jpg)
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)
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154000vilpsk1lpt3qqpzl-1024x683.jpg)
From left to right: USB-A output, USB-C input/output bidirectional port, four LED indicators, and a power button.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154000so5kzror59orzork-1024x683.jpg)
Close-up of the LED indicators.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154001myjqg74f2hvjsqjf-1024x683.jpg)
It has a nice hand-feel.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154002j00bzfjpl900ik0j-1024x683.jpg)
Size comparison with the iPhone XS Max.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154002qs9rn9tm96t7ppd7-1024x683.jpg)
Thickness comparison to a 1 Yuan RMB coin.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154002zkhuwchwhg86l272-1024x683.jpg)
It weighs 230.2g/8.1oz.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/weight.jpg)
It is relatively heavy in the 10000mah-range power banks.
II Review
1. Charging protocols test
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154003aruth3hde9y9h3h3-1024x683.jpg)
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.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154004yw69wanbq9kyk4te-1024x683.jpg)
USB-C supports Apple 2.4A, DCP, QC 2.0, QC 3.0, AFC, FCP, as well as USB PD 3.0 charging protocols.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154004rv6uvv6jf00uj37j-1024x683.jpg)
USB-C output supports 5V/2.4A, 9V/2A, 12V/1.5A.
2. Compatibility Test
1) USB-C output
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154005rj24jmdd5d2z7575-1024x683.jpg)
Use the USB-C port to charge the iPhone 11 Pro Max, we are getting 9.11V 1.97A 18.01W, under PD protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154005nekszf4zbdf4zdii-1024x683.jpg)
Use the USB-C port to charge the Honor 8, we are getting 9.1V 1.46A 13.37W, under FCP protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154006y12x2oo0xkkj10k5-1024x683.jpg)
Use the USB-C port to charge the Samsung Galaxy S10+, we are getting 9.1V 1.49A 13.6W, under PD protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154006mtt1fv136w3k1t71-1024x683.jpg)
Use the USB-C port to charge the iPad Air3, we are getting 12.1V 1.42A 17.25W, under PD protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154007h81gcr2brb6v5gf2-1024x683.jpg)
Use the USB-C port to charge the iPad Air2, we are getting 5.11V 2.43A 12.46W, under Apple 2.4A protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154007ij6xrj373cnzh3i4-1024x683.jpg)
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
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154008cowzfr88l9wruw88-1024x683.jpg)
Use the USB-A port to charge the iPhone 11, we are getting 5.1V 2.35A 11.99W, under Apple 2.4A protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154009qa1r4oxnnynclonm-1024x683.jpg)
Use the USB-A port to charge the Honor 8, we are getting 9.1V 1.46A 13.34W, under FCP protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154009i3t9yu3vbctxtcct-1024x683.jpg)
Use the USB-A port to charge the Xiaomi 9, we are getting 9.31V 1.85A 17.25W, under QC protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154010b96j1h5lz2b65ude-1024x683.jpg)
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
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154011omypfltloyxifgaq-1024x683.jpg)
Using the Apple 18W PD charger (A1695) to charge the Realme, we are getting 9.03V 1.96A 17.71W, under PD protocol.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154011c8lqcc80eaqecoge-1024x683.jpg)
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.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154011hl0gdlolgfmnogz1-1024x685.jpg)
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
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154012e9df9c6a9epd06ff-1024x683.jpg)
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.
![Realme 10000mAh 18W PD Fast Charge Power Bank (RMA137) Review-Chargerlab](http://www.chargerlab.com/wp-content/uploads/2019/09/154012vkh19p35290zp1m9-1024x683.jpg)
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