[Note 7 Accessories] Pilz:
Tronsmart Presto Gen2

Disclaimer: I was sent these items in exchange for an unbiased review.

Tronsmart Presto 10400mAh Powerbank

Unboxing and First look (Original Presto)

Overview

From my original Presto review:

I have been searching for a nice powerbank to charge my Nexus 6P & other phones (S7 Edge, Note 7) simultaneously since I bought it back in September of last year. Tronsmart finally made what everyone (in my opinion) has been looking for in a battery pack; this battery offers both QC 3.0 and Type-C fast charging due to the way it’s designed. I’ve tried a few different battery/power banks before this one for the Nexus, yet all of them that offer a Type-C port break the USB specification.

Tronsmart claims this powerbank is one of the most efficient on the market giving you the ability to maximize the power it stores to charge your phone. I do have other batteries, but their capacities aren’t similar enough to compare here. I tested this battery and had around a 60% efficiency which is good for an external battery pack. I’ve had some that were below 50%, and that’s really subpar. Tronsmart (and other OEM’s) can only make batteries as efficient as the laws of thermodynamics permit alongside the other variables that a user will encounter (heat loss, resistance, using the phone while charging etc.). I’m not saying this is a perfectly efficient battery because none really can be, but it’s certainly good.

New Presto:

There haven’t been any big changes in the Presto from the original 12000mAh model I received other than a reduction in capacity, and a broader compatibility using the USB-A port.

What’s in the Box

-Tronsmart Presto 10400mAh Powerbank

Tronsmart Pouch (fits battery pack and a cable)

-Documentation

-USB A-C charging cable with the proper 56k ohm resistor

Build & Design

In the typical Tronsmart style they have opted for a glossy plastic border alongside a matte plastic body. The plastic feels nice, and has a subtle texture on the matte section giving it a more refined feel. I appreciate how Tronsmart carried over their design language across multiple products (chargers, powerbanks etc.) which gives the end user a familiar feel to their products. I haven’t noticed any differences in weight despite the newer one having a slightly reduced capacity. I was told this reduction was due to supply constraints with the battery cell provider since they also product batteries for phones (the iphone in particular).

On the front of the powerbank you will find two ports; the first is your standard USB-A that offers QC 3.0, while the second only charges via USB-C fast charging. I like how they separated the circuits to offer both standards in one nicely designed battery especially for people like myself that own a Quick-Charge enabled phone (QC 1.0/2.0/3.0). I was told this new version will also output 5V/2.4A for support non-Android devices out of the USB-A port which is a good thing if you own other devices.

Along the side you will find a power button that turns on the battery for when you want to charge your phone(s).

Charging breakdown by port

Input (Type-C): DC:5V/3A

Output (Type-C Port): DC 5V 3.0A Max

Output (QC3.0): DC 5V-6.5V/3A 6.5V-9V/2A 9V-12V/1.5A

Summary

This has quickly become my new go to powerbank given the wide range of charging options it offers for both of my phones. I also really appreciated the compact design, solid construction, and consistent styling offered. I carry both of the Presto’s with me since I’m constantly out in the field at job sites as the onsite engineer. Having a compact, powerful battery is essential in my line of work; I’d rather carry one of these than a clunky battery case on my phone personally for the versatility.

I will update this OP as needed with any new information