preface: At present, mobile phones are developing very fast, basically reaching a higher level in less than a year, and the development of batteries is far behind, such as watching videos, surfing the Internet, playing games, and consuming more power, The capacity of the battery becomes One of the biggest bottlenecks, So as to move the power supply（ portable battery ）Supplement the blank of this model, use Beaver Moment Mobile Power You can store the capacity of an iPhone in 15 minutes, so you can travel without worry, thank Lei Feng（ //tryout.leiphone.com ）Give this trial opportunity!

Unpacking and appearance:  

▼  The package of Beaver Moment Mobile Power Supply is clean. On the color box is the outline drawing of the mobile power supply. Next to it is the name of the mobile power supply

▼ The back is the relevant input/output parameters of the mobile power supply. The fast charge input is DC12V~25V, and the maximum current is 4A,

▼ Put the mobile power supply into the paper folding box to reduce vibration and prevent collision during transportation

▼ It adopts keyless design to facilitate operation, and the aluminum alloy shell is wear-resistant and fall proof, The test weight is only 230g, which is convenient to carry.

▼ Four LEDs on the front indicate the power level, and all four lights are on, indicating that the power level is full.

▼ Attached There is only an instruction manual for the product, and no charging cable is attached. At present, fast charging is not popular, and generally there is no such cable. It is recommended that it be attached when the product is being sold later, so as to give play to its highlights.

▼ The manual introduces relevant product introduction, parameters and relevant precautions.

▼    Main specifications and parameters of the product:

▼    The weight and size of beaver mobile power supply is only 230g, and the size is 137mm * 73mm * 12.5m, which is as large as a 5-inch mobile phone and convenient to carry.

Function test:

Beaver Moment Mobile Power has adopted NTC thermistor and temperature control processing mechanism to ensure that the battery works within a safe temperature range. In addition, it has added a short circuit protection element to prevent the main board and battery from being damaged. Because it is not easy to disassemble, it is not known which element is used. It is recommended to use a recoverable fuse. In addition, according to official data, the conversion rate can reach 93%, which is quite high; In addition, it supports instant car charging and all Macbook power adapters (except TYPE-C interface adapter), You can store the capacity of an iPhone in 15 minutes, so you can travel without worry.

It's a little pity that I received the back power supply and didn't respond. The indicator light didn't light up. After contacting Lei Feng, I quickly helped to deal with the problem. The manufacturer returned the test after testing and found that different mobile phones would have different conditions. First, arrange the USB interface cable. After replacing several cables, the results were the same. The results were fed back to the manufacturer. The following are some conditions found in the evaluation process.

1. Tianji mobile phones with Android system of 4.3 No matter what gesture is used, there is no voltage output.

two 4.2.2 for Android Huawei 3C (H30-T00) is a warning of overvoltage at the beginning of insertion. It can be charged only after being unplugged and plugged in several times. It has been tried several times later.

three 4.4.2 and 5.0.1 for Android Insert the cable into the phone Micro USB interface Only then can the USB interface be inserted into the mobile power supply, otherwise it cannot be sensed and the mobile power supply has no voltage output;  

4.  The glory 5X of Android 5.1.1 requires a phone from 4.4.2 to 5.1.1 to trigger an output, and then the output can be inserted into 5X, otherwise it can't be used.

5.   Due to the above conditions, a self made connection wire that can test the current and voltage is made:

▼ Test that the charging current is about 1A

▼ Test that the charging voltage is below 5.3V (using Android system Phone charging in 4.4.2 and 5.1.1 The maximum voltage is 5.3V, and it will be about 5.1V after stabilization).

▼ Monitor the situation of Glory 5X. When the USB head is inserted into the mobile power supply, the input voltage reaches 6V, which exceeds the maximum charging voltage of the mobile phone by about 5.3V. This may be the reason why the Glory 5X and 4.3 systems cannot be charged. This part of the manufacturer needs to focus on what the reason is

RoHS test:

Since the mobile power supply is used every day, it is always in your hand Hazardous substances This is a situation that we are very concerned about. After testing, its harmful substances are all qualified and can be used with confidence. See the following test report for details.

Summary:

      This power supply has a fast charging function to solve the problem of insufficient battery when going out, You can store the capacity of an iPhone in 15 minutes, so you can travel without worry; In addition, I was creative and didn't have any switches. I could know the amount of power by gently shaking the power display. In the two days of evaluation, I found some problems and gave feedback to the manufacturer. The manufacturer was very active in dealing with them. What was lacking in the trial was that the compatibility needed to be improved, and some mobile phones didn't support it, There is an overvoltage warning (when the voltage is monitored, the inserted voltage reaches 6V, and this part of the manufacturer needs to focus on following up), and 4.4.2 and 5.0.1 for Android Insert the cable into the phone Micro USB interface Only then can the USB interface be inserted into the mobile power supply, otherwise it cannot be sensed and the mobile power supply has no voltage output The person who is not clear about such operation thinks that the mobile power supply cannot be used