Mestek Digital Multimeter Auto Smart Range T-RMS DC AC Voltage Current Capacitance Ohm Diode multimetro Temperature Multimeter
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ID: 10759
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USB resistor dc electronic load With switch adjustable 3 current 5V1A/2A/3A battery capacity voltage discharge resistance tester
4.9 (412 votes) | 520 orders
Price:
US $11.47
/ piece
Discount Price:
US $
11.04
/ piece
-4%
A designed according to the principle of ohm's law and through the resistor in parallel through a different switch, can produce 3 kinds of resistance of a new USB electronic load resistance discharge, when all the switch opens, is 2.2 ohm/10W, 4.7 ohm/10W, 2 kinds of resistance in parallel at the same time, in 5V voltage almost can produce 3A discharge current.
The actual current size, please according to ohm's law: I = U/R
Resistor in parallel calculation formula: R=1/(1/R1+1/R2+...+1/Rn)
K1=4.7Ohm/10W , K2=2.2Ohm/10W
Examples of application
!!!Announcements!!!
1, the load device is working, winding resistance caused by large current, will produce very, very high temperature, therefore in the process of use, and just use the finished in a short period of time, absolutely can't human exposure golden metal radiator parts, to avoid the scald!Nor to flammable items contact tester, in order to avoid the fire!In use process must be highly vigilant!
2, considering the particularity of heat resistance, the initial use of electricity after a period of time will appear a few white smoke and smell, because outside the paint contains very little moisture, high temperature electric heating, moisture evaporates form the phenomenon of white smoke, produce peculiar smell by high temperature baking paint outside phenomenon, completely disappear after using for a period of time.This phenomenon is inevitable, belongs to the normal situation, do not have to worry about load tester can damage, please be assured that use.
The load application
Can be convenient to test mobile power charging treasure, mobile phone charger, USB power output current is such as to amount to mark, so long as connect USB above.And can do it for mobile power supply and USB power adapter aging test, aging test discharge resistance will be hot, temperature is controlled in 80 ~ 85, please pay attention to prevent hot.
Dear Customer,Our Freeshipping is Seller's Shipping Methoe,Tracking number will be like or " UA718628210YP" ,this tracking number only can be tracked before it arrive the airport , and have no tracking information in your country.Do not choose this shipping method if you don't like the regular mail.
Please choose China Post Air if you need international tracking number like this ,This number can provide a full tracking information.
We provide Free China Post Air mail shipping method if your order price over $35.
Contact us if you find our price higher than others,thanks!
- Model Number: 5V-1A2A3A
- Type: Electronic Device Battery Tester
- DIY Supplies: ELECTRICAL
- Brand Name: HIDANCE
- Certification: CE
- Origin: Mainland China
- Size: 83*21*13mm
- Discharge way: Heating way ( High temperature hot pay attention to safety )
- Current king: 3 kind
- Number of switch: 2 switch
- Current principle: Ohm's law
- Resistance principle: Shunt resistance formula
- PCB substrate: Glass fiber board
- Glass fiber board: 3 LED
- Put resistor technology: Winding type
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|---|---|
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