There are many types of mobile batteries around 5,000mAh, and when you just look at the capacity, you tend to think that they are all about the same amount.
This time, we measured Anker 321 Power Bank (5,200mAh) and TNTOR WT-H500 (5,000mAh) under almost the same conditions using the same iPhone15 Pro and the same cable.
We will show you the results of numerically confirming the difference in actual charging speed between two devices with similar capacities.
Actual measurement of two 5,000mAh class units under almost the same conditions
| item | Anker 321 | TNTOR WT-H500 |
| capacity | 5,200mAh | 5,000mAh |
| maximum output | Approximately 12W (5V/2.4A) | Approximately 10W (5V/2A) |
| iPhone remaining amount at start | 2% | 3% |
Both start after fully charging the mobile battery and use the same Anker USB-C cable. During the measurement, I was working on my PC and hardly used my iPhone.
Since the remaining iPhone capacity differs by 1% at the start, it cannot be said to be a strict apples-to-apples comparison, but it is a result measured under conditions close to daily use.
Anker takes less time from 30% to 100%
| reach | Anker (starting at 2%) | TNTOR (starting at 3%) | difference |
| 30% | 19 minutes | 32 minutes | 13 minutes |
| 50% | 46 minutes | 55 minutes | 9 minutes |
| 80% | 66 minutes | 93 minutes | 27 minutes |
| 100% | 138 minutes | 157 minutes | 19 minutes |
When using TNTOR, “Slow Charging” was displayed on the iPhone15 Pro side.
iPhone15 Pro reached 80% with a difference of 27 minutes
The biggest difference in our measurements was that there was a difference of 27 minutes when 80% was reached.
Looking at the progress during charging, the difference was 13 minutes at 30% and 9 minutes at 50%, but by the time it reached 80% it had increased to 27 minutes. Although there is a 1% difference in starting power remaining, the difference in maximum output may also have affected the results.
However, this is the result under the actual measurement conditions. The charging speed changes depending on various factors such as the condition of the iPhone and the temperature, so we cannot guarantee that the difference will always be the same.
Both have remaining capacity after reaching 100%
Anker was able to charge the iPhone 15 Pro to 100% in 138 minutes, and at the end of the charge, the remaining power on the Anker itself was 1/4 blinking. TNTOR reached 100% in 157 minutes, with 1/4 of the system remaining.
Both can charge the iPhone 15 Pro to 100%, and we have confirmed that there is still some charge left in the mobile battery even at the end.
Recharging the main unit takes approximately 2 hours in both cases.
We also checked the time it took to recharge the main unit after charging the iPhone. Both start from around 1/4 of the remaining capacity, not from 0%, so please use this as a reference value.
Anker took 137 minutes to fully charge from 1/4 flashing, and TNTOR took 122 minutes from 1/4 remaining. Although it is not possible to make a simple comparison because the remaining capacity at the start is different, the results show that both can be charged in around 2 hours.
Check the maximum output if charging for a short time
In this actual measurement, there was a difference of 27 minutes in reaching 80% even with two machines with similar capacities. The maximum output according to the specifications is approximately 12W for Anker and approximately 10W for TNTOR, and this difference may have affected the actual measurement results.
When choosing a mobile battery, it is best to check not only the capacity but also the maximum output. As in this case, even with a 5,000mAh class, there is a difference of 27 minutes to reach 80%, so if you are someone who wants to charge your iPhone quickly on the go, you will be less likely to make a mistake by looking at three points: capacity, maximum output, and actual value.
Regarding mobile batteries that use semi-solid batteries,[SOLIDZ Power Bank Model FT実機レビュー]Please also take a look.
Source: iPhone Mania
