I've reviewed a few battery packs from Otterbox, and have had a
good experience with them so far. I've also reviewed a handful of
battery packs that have a wireless charging pad built into them,
and, again, have had a good experience. But I've never used a
battery pack with a wireless charging setup quite like the Otterbox
Folding Wireless Power Bank.
At first glance, it looks like a typical battery pack. The black
housing has two ports on the front—one USB-A, the other USB-C—and a
power button with capacity-indicator LED lights on the side. But
the top of the battery pack is where things get weird. In a good
Note: This review is part of our roundup of portable power banks.
Go there for details on competing products and our testing
It's clear by looking at the pack that there's a wireless
charging pad thanks to the textured surface and an identifiable
charging area, outlined with gold, in the center. But instead of
just lying your phone flat on the battery pack, the top lifts up to
create a wireless charging stand, complete with a little ledge on
which to rest your phone.
The wireless charging
pad works with your phone in either vertical or horizontal
The hinge for the stand is strong, allowing you to adjust the
angle of the stand, ensuring you can watch a video, talk on the
phone, or even game while your phone is charging.
I tested the wireless charging capabilities of Otterbox Folding
Wireless Power Bank with an iPhone 13 Pro Max and a Pixel 5.
Otterbox advertises wireless charging of up to 10W. To test it, I
drained both phones until they powered off due to running out of
battery, and then placed them on the charger for an hour. I'd turn
on and unlock both devices after roughly four minutes of charge
time, and then after an hour had expired I'd check their respective
For the iPhone 13 Pro Max, the pack averaged a 42 percent charge
level after an hour. For the Pixel 5, the average battery level was
28 percent. I'm confident the reason the Pixel 5 charged slower is
that the phone isn't that tall and the charging pads didn't
properly line up when using the pack with the stand erect.
As far as wired charging is concerned, the Otterbox Folding
Wireless Power Bank offers up to 18W charging through either port.
You can charge the pack through the USB-C at up to 15W. Using an
AVHzY USB Power Meter connected to a computer, I measured both the
time it took to charge the pack at maximum charging speed, and how
much power the pack expelled out of its total capacity of 10,000mAh
It took 2 hours and 43 minutes to charge the pack at 15W, and I
verified that it supports passthrough powering. In other words, you
can charge the pack while also charging your phone via a wired or
When it comes to efficiency, the power bank didn't perform as
well as I had hoped. Out of a potential 37Wh of capacity, the pack
stopped outputting power after 27.7191Wh. That's an efficiency
score of 74.92 percent, the third-lowest out of all battery packs
I've tested. The average rating among all tested packs is 83.34
When connecting a device to either USB port, the pack starts
charging automatically. You don't have to turn it on. Turning on
the wireless charging pad was trickier, however. By the end of my
testing, I figured out I had to press the power button once and
then wait a few seconds before the wireless charger would turn on
and start providing power to the device.
Using the same AVHzY USB Power Meter to monitor the USB-A port,
I was able to successfully trigger Apple 2.4A, DCP 1.5A, Samsung
9V, Huawei 9V, QC 3.0, and QC 2.0 charging standards. Connected to
the USB-C port, I triggered DCP 1.5A, Samsung 9V, Huawei 9V, QC
3.0, and QC 2.0 charging standards. Exactly as expected.
I think the Otterbox Folding Wireless Power Bank makes sense for
those who want a unique battery pack that offers wireless charging
with a twist. That said, $60 is a high price for a a 10,000mAh
battery pack that isn't very efficient, so know that you're paying
a premium for the Otterbox name and the wireless charging stand.
There are much more affordable and capable options available.