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Product Description
Mini USB Tester Current Voltage Charger Capacity Tester Current Voltage Meter Digital Display Mobile Power Detector Battery Test
Feature:
1. Mini USB Meter: Our USB voltage & current meter is a compact device that can be easily carried around.
2. Clear Display: This USB meter displays all data clearly, making it easy to read and understand.
3. Multi-functional: With this USB meter, you can conveniently measure the working current and output voltage of USB ports and devices (such as PC USB, phone chargers, car chargers, power banks), as well as the charging capacity and performance of your charging equipment.
4. Battery Capacity Tester: This USB meter can also be used as a battery capacity tester, providing accurate readings of battery capacity.
5. Widely Used: This USB meter is suitable for use in factories, laboratories, and by individuals. It is easy to use, portable, and does not require an external power source, making it a versatile tool for anyone who needs to test USB ports or devices.

 

Specification:
Model: KWS-V20
Material: Plastic
Color: Blue
DIY supplies: electric
Display type: Digital Only
Code accuracy level: plus or minus 1%
Working temperature: normal
Power supply: AC
Voltage:
Input/output voltage: 3-9V
Voltage resolution: 0.01V
Electric current:
Input/output current: 0-3A
Current resolution: 0.01A
Time: 0-99H
Size: 59-73 * 23 * 13.5mm/2.32-2.87 * 0.90 * 0.53inch
Net weight: 20g

Instructions:
Voltage and current measurement:
Plug the USB male into a 5V charger, and plug the female into a mobile phone or other devices to directly read the voltage and current parameters
Measure battery capacity:
By using linear charging circuits such as TP4056 to fully charge a completely dead battery through this capacity meter, the capacity reading is the battery capacity. This method can also measure the charging capacity of mobile phones, and even calculate the charging efficiency of mobile phones.
Measure the output capacity and efficiency of mobile power supply:
First, connect the mobile phone to the mobile power supply, turn on the mobile power supply, press and hold the button until the capacity data returns to zero, and insert the phone multiple times to charge until the mobile power supply runs out and automatically shuts down. The next time the machine is turned on, the displayed capacity is the mAH output of the mobile power supply. Note that this mAH is much smaller than the nominal mAH, with output mAH * output voltage 5V/battery mAH * battery voltage 3.7v=mobile power efficiency
Data reset:
Press the reset button for 3 seconds and the screen will display reset.

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.

Included
1 x USB Tester
  1. * Payment must be received within 7 business days of auction closing.
  2. * If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review.
  3. * Refunds are normally issued with 2 working days.If you need any further information regarding payments,please contact us via eBay message.
  4. * If you have any special requests, please send us a message before making the payment.
  5. *NOTE: Import duties, taxes and chargers are not included in the item price or shipping charges. These charges are the buyer's responsibility.
  6. Please check with your country's customs office to determine what these additional costs will be prior to bidding buying.

  1. * 12 months Warranty. Buy with confidence!

  2. * If you are not satisfied when you receive your item, please return it within 14 days for a replacement or money back. Please contact me before you return it.

  3. * If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item.

  4. * If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.

  1. * We ship from the item location.

  2. * Items will be shipped within 2-3 business day(S) after payment completed received.

  3. * NOTE: Please check the parcel before sign for it, If any problem with the parcel please mark on the signature that "Damaged when received" when signing it. Thank you.

  1. * We are not responsible for any custom duty or import tax.

  2. * We will leave POSITIVE FEEDBACK after receiving the payment. Please contact us if you are not satisfied with the item after receive it.

  3. * All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible.

  4. * Serious Buyer Only! Please place bid only if you agree with all the terms.

  5. * If you have any problems or concerns whatever with your order or products, please message us and give us a chance to assist you before you leave any feedback. We believe we can produce a positive outcome to any situation and will work hard to earn your praise.

  6. * If you were pleased with this transaction, Please give us 5 star rating, thanks!

  1. * Our office hours are 9:00 a.m to 6:00 p.m (GMT +8) of Monday to Saturday.

  2. * And our Office is closed on Sunday and public holidays.

  3. * We apologize for the late reply during the holidays.

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