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farkasditke73 07/04/2024
This is a good and versatile charger. Below I'll give some additional info you won't find in the user manual. 1) Short touch any key to turn on the backlight. It will stay on for 30 seconds, then it will automatically turn off. 2) Long touch the Current key until the beep tone stops. This will turn on the backlight permanently. Repeat this two times to turn the backlight off. 3) The charging process of Li-ion batteries will will be terminated at 4.22V but the display shows 4.20V. This is +0.48%, barely within the usual tolerance of +/-0.5% given for other chargers. I wish it were closer to 4.20V. Other pieces of this type may vary. 4) In Discharge and Test modes Li-ion batteries will be discharged to 2.82V. This is no problem with the charger, this is the usual way to test capacity but not so good for the battery. So don't use these features too often! My personal opinion is that the max. discharge current of 500mA is too small, it takes 15+ hours to test a 5000mAh battery. This is way too long, I miss an option for 1000mA discharge current. On the other hand you don't test batteries even on a weekly basis, so you can let the charger take its time. 5) Disconnect the USB input cable to enter USB power bank mode. The device draws 150mA from the battery in standby mode, including the backlight, which is always on in this mode. With a load of ca. 1300mA it draws 2A from a full battery. At first glance it may seem bad efficiency but it is not because the 4V battery drives a boost converter to produce the 1300mA at 5V. This requires ca. 1625mA from the battery, plus the 150mA standby current. So the efficiency of the boost converter is 1625/(2000-150) = 87%. This is very good. All in all, this is an excellent product, very good value for your money. Highly recommended!
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farkasditke73 You can't. On Android 10 and up Google blocks all attempts to use Accessibility Services to be used to record conventional phone calls. VoIP and SIP calls can still be recorded, though. Some developers offer aids to circumvent this limitation. I tried Cube ACR and ACR Phone but neither of them worked.

2024-11-11 05:09:56 Helpful (0)
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The seller Dear, thank you for your support, its PWM control, our switching frequency is very high, when the brightness is low, you should not be able to see the flicker.

2024-04-14 10:02:03 Helpful (1)
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Q: 40A*12V=480W Wie kommt man auf 7.8 kW? Ein Kraftwerk?

Asked by svenberlin on 2024-07-28 10:45:08

farkasditke73 PMPO = Peak Maximum Power Output. It means it can output 7.8kW for a few milliseconds. 4*120W RMS (Root Mean Square) power output is a lot more realistic.

2024-10-08 02:15:26 Helpful (0)
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farkasditke73 Yes, it can, using the Pythagorean functions. You must target the laser on the highest point of the cargo and it will measure its height from the device, i.e. NOT from the ground. Then you must add the distance of the device from the ground, which you only have to measure once and note it.

2024-09-16 12:16:27 Helpful (0)
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Alex3 TR1 telescope rangefinder uses optical imaging 1. When the object passes through the objective lens, the distance is greater than twice the focal length, and an inverted and reduced real image (camera) is formed 2. The formed real image passes through the eyepiece and forms an upright and enlarged virtual image (magnifying glass) within the fixed focal length of the eyepiece Because the light entering the light source enters the objective lens, the distance is shortened, making the viewing angle larger, so an enlarged image is formed. That is, the small opening angle of the distant object can be magnified at a certain magnification, so that it has a larger opening angle in the image space, making objects that cannot be seen or distinguished with the naked eye become clear and distinguishable. TR1 telescope rangefinder uses a type of invisible laser, and the laser point cannot be seen, but the measurement target can be determined by the crosshairs in the eyepiece. The distance to the position where the crosshairs point is hit is the distance to that position.

2024-09-18 02:44:37 Helpful (0)
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Q: Does a flat-top or button-top 21700 battery fit in?

Asked by farkasditke73 on 2024-09-12 01:09:17

The seller No, this product uses 18650 batteries.

2024-09-18 09:41:42 Helpful (0)
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Q: Can it connect to the PC via Bluetooth? Gives more mobility.

Asked by farkasditke73 on 2024-06-07 01:21:05

JLG Toperform its function it needs to be connected to the power source that you measure, if it is the USB port of the PC, it must be connected to the PC, but if you measure a different source, you can connect the tester via Bluetooth to the PC and follow the readings there.

2024-06-08 04:42:19 Helpful (1)
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