For a long time in the flashlight, so many cheeses to be fed. No reliable charger really is not possible, this time engaged in a new peculiar but there is still a drop in the charger. Why not call it an incomplete evaluation? . . Because some tests are time-consuming and labor-intensive, so~ did not do it.
Aunt conventions: It is not convenient to link to a certain treasure now.
Unpacking:
Supports mixed charging, USB output, and charging parameters can be adjusted by connecting Bluetooth mobile phone APP.
Commonly used on the market to charge batteries to kill, 4.2V lithium and 1.2V Ni-MH automatic identification. 3.6V iron lithium and 1.2V nickel cadmium need manual selection.
Overshoot protection, reverse connection protection, etc.
Open package ~
Charger does not have too much attachment, manual, power supply, charger body. (Tucao: Domestic sales of products even have Chinese instructions)
Equipped with 9V 2.5A power supply, maximum output 22.5W.
Four charging slots, the edge of the two maximum support 26650 specifications of the battery, the center of the two maximum support to 18650 specifications.
The matching Bluetooth button when the APP is first linked, and the charge status display. Above the charging slot is the mode selection button. After the battery is inserted, click to switch the output current and battery type. However, it is still recommended APP control, more convenient and intuitive.
You can verify the authenticity by scanning the two-digit code with APP.
Each charging slot is controlled independently and supports multiple models of battery charging.
19423d.jpg" />
The two slots in the middle support a maximum charging current of 1A, while the two sides can support a charging current of 2A. However, all 1.2V AA batteries can only be charged with 0.25A of current. This is not good ~
At the same time support USB output function, but need to put 4.2V lithium battery to open.
The manual states that it is necessary to fully insert the 4 slots to enable the USB charging function. The actual measurement of two slots + can be turned on, but the output is not stable.
The output voltage is 5.149V, which is quite standard.
Here's the next APP section:
App store search ESYB can find the official APP
APP supports battery display, charging parameter settings.
Charging parameters can be selected, such as charging current, battery type. Below is the charging curve.
Lithium-Ion and 1.2V auto-recognition can perform 3.6V FeLi and 4.2V Li-Ion switching in Li-Ion mode and NiCd and NiMH in 1.2V AA mode. In other words, manual control of the battery type can only be within a limited range. Maximum charge safety.
After the battery is full, there will be a push prompt, which is more convenient for this function.
Lithium charge test:
As there is no 3.6V iron-lithium battery at hand, no charge test for iron lithium has been done. The following is a 4.2V 18650 lithium battery charge test.
The battery is not fully illuminated and there should be 70% of the battery. But just look at the cut-off voltage, it's not a bad thing. . .
First slot: 4.240V
Second slot: 4.243V
Third slot: 4.228V
Fourth slot: 4.247V
The maximum total output current of the charger is 4A. If the two slots are set to 2A charging current, the middle slot will not be charged.
Only one of the charging currents can be dropped to the middle two slots for normal charging. Regardless of the setting, the four-slot current cannot add up to 4A. This is true, although slow charging is beneficial to battery life, but it can't output 2A+2A+1A+1A at the same time.
AA charging test:
Right now, there is a set of 4 times the special flash power, so ~ began a long test process, but never expected. This picks up the battery............
The 250mA current is a bit small for the current 2000mAh+ NiMH battery, so it is psychologically prepared. However, there was no stoppage the next day, indicating that 3000mAh+ had been rushed into. After 18 hours of overshoot protection, the protection start is considered to be charged.
Remove the battery and measure the cutoff voltage:
The first slot: 1.461V
Second slot: 1.451V
Third slot: 1.459V
Fourth slot: 1.463V
Picking up the battery was a real pain and she later tested his wife.
The result is that there is no problem with the eneloop charge, but the 250mA charge current can't help but stop it again. Or honestly take this cargo as a lithium battery charger, and if you charge AA urgently, you will be crazy.
First slot: 1.469V
Second slot: 1.460V
Third slot: 1.456V
Fourth slot: 1.460V
Voltage display accuracy:
The accuracy of the multimeter is no problem, regular calibration. Lithium battery measured:4.224V
The charger is shown as: 4.18V Low 0.04V
AA battery measured voltage: 1.395V
Charger display: 1.37V low 0.025V
Charger to meet stability and security is good. Usually there is no special high demand, and the general public does not use a variety of functions such as discharge capacity tests on tall devices, not to mention the accuracy is worrying. The landlord has a hand on hand, and he loses it a few days after he arrives fresh.
The E4 who started this time didn't know how long it would be fresh, but the APP function was really convenient. The charging parameters can be controlled more directly by the phone rather than by a single button cycle control on the charge. If the hand-shake is wrong, then the feeling of having to repeat it again is just too cool.
And after the completion of charging will automatically push tips, this feel more convenient.
There is no problem with lithium charging, and the charging speed meets the requirements for use. The battery types that are supported also basically cover all common lithium batteries. In addition to the total output of 4A, there is nothing wrong with it. If you can support full power output charging is better.
The AA charging current is somewhat small, and the maximum 250mA can't satisfy the current battery with more than 2000mAh. It is difficult to understand why the manufacturer is limited to 250mA. This current can only meet the charging requirements of AAA batteries. If it is full of 2000mAh AA, it takes at least 10 hours. As for picking up batteries, it should be an example. May be related to the landlord Battery Battery. Put on eneloop everything is normal.
The voltage display accuracy of this basic is OK, after all, a charger's display accuracy will not be too high. Most chargers are at this level.