Samsung Galaxy S7 Edge Charging Analysis

I visited tronsmart website and found an interesting article. You guys might need such useful information so I post it on here. Please note that I have removed all of the products links in this post.

The Galaxy S7 Edge has been drawing lots of attention since its release on 2016 WMC this past February. It features a 5.5 inch AMOLED 2K display, powered by Android 6.0 OS and a built-in 3600 mAh Li battery. Now, the Galaxy S7 Edge is currently available on market, but we sourced one previously and have already spent several days of testing its charging capabilities to make this analysis for our readers.

The Samsung Galaxy S7 Edge is equipped with the latest Qualcomm Snapdragon 820 SoC, and it supports Qualcomm's Quick Charge 2.0 technology. Tronsmart has tested the Galaxy S7 Edge charging with its original wall charger, with a OnePlus 2 original charger, and with Tronsmart's latest WC1T, W2PTE wall charger and C2PTE charger.

The following is the charging result and analysis.


1) Samsung Galaxy S7 Edge original charger (with Quick Charge 2.0 technology)
Specification: INPUT AC100-240V
OUTPUT DC5V@2.0A, 9V@1.67A
Result: Total Charging time from battery level 0% to 100% is 1 hour and 34 mins with the original charger, check the table and chart below for details, minute by minute.

Chart 1

From the data, we can see in the first full hour, battery level has already reached 78%, the maximum charging voltage is 9.19V, and the current is 1.62A which is about 15W of maximum power. Then another 34 mins later, the battery level is fully charged. During the last 34 mins, charging voltage is around 9V, but current reduces from 1A to 0.5A approximately in the end. The whole charging process lines up with the basic principle of a standard phone charging system. Smartphone batteries are charged in two stages as we have discussed in the past. The first stage can be performed with a high amount of power and takes the battery up to around 80%. Then the second stage kicks in where the power is reduced as the battery is topped up to full. It is proven, once again, in the following charging tests.
2) OnePlus 2 Original Charger
Specification: INPUT: AC100-240V
OUTPT: DC5V@2.0A
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Result: It takes 2 hours and 1 mins to charge the Galaxy S7 Edge from 0% to 100% with OnePlus 2's original charger that ships with their latest phone model. Check the table and chart below for details, minute by minute.

Chart 2

From the table 2, it is clear to see in the first 1 hour and a half, nearly the same time as Galaxy S7 Edge original charger time, the battery level is juiced up to 83%, and another 31 mins to be 100%. Maximum charging power is 9.5W. Compared with the Galaxy S7 Edge original charger, we note that the OnePlus 2 charger takes 27 minutes longer than the Samsung OEM model charger.
3) Tronsmart WC1T wall charger (with Quick Charge 3.0, also backwards compatible with Quick Charge 2.0 devices)
Specification: INPUT AC100-240V
OUTPUT DC:3.6-6.5V@3.0A, 6.5-9V@2.0A, 9-12V@1.5A

Result: Total charging time is 1 hour and a 30 minutes, almost the exact same amount of time as the Galaxy S7 Edge original charger. Charging details are below in table 3 and chart 3.

Chart 3

With 1 hour of charging, the battery level reaches to 83%, a little faster than Galaxy S7 Edge original charger. Then in the second charging stage, it takes half an hour to be 100%. Maximum charging voltage is 9.32V, current 1.58A, with a maximum of around 14.7W of power. We can see in the first charging stage, the WC1T charges rapidly and then become slow and steady in the second stage.

4) Tronsmart W2PTE wall charger (USB-A port with VoltIQ, USB-C port with Quick Charge 3.0, also backwards compatible with Quick Charge 2.0 devices)

INPUT: AC100-240V
OUTPUT1 (USB-A port): DC5V@2.4A(Max)
OUTPUT2 (Type-C port): DC3.6-6.5V@3.0A, 6.5-9V@2.0A, 9-12V@1.5A

Result: Total charging time is 1 hour and 32 mins, again about the exact same charging time as the Galaxy S7 Edge original charger and WC1T wall charger. Charging details are below in table 4 and chart 4

Chart 4

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