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3 in 1 OLED Mobile Battery Tester Power Detector Voltage Current Meter USB Charger Doctor

21 reviews
100% of buyers enjoyed this product! 1590 orders
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3 in 1 OLED Mobile Battery Tester Power Detector Voltage Current Meter USB Charger Doctor

NOTE:This item come without retail package .


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of ElectricRCToys (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

21 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
18 Apr 2018 06:10


verifed buyer
17 Apr 2018 04:28

all working, замеряет all correct

verifed buyer
16 Apr 2018 06:29

... double отличилась russia post ((

verifed buyer
16 Apr 2018 03:11


verifed buyer
15 Apr 2018 19:06

all goods works great. recommend

verifed buyer
15 Apr 2018 03:37


verifed buyer
13 Apr 2018 21:42

пришёл goods! all working, thanks to store.

verifed buyer
13 Apr 2018 13:39

description precision issue to (usb tester): not oh-then "3 in 1" and "4 in 1", tk have indication: 1), 2) потребляемого (output), 3) connect the load time (hours & minutes) 4) charge, the mah, 5 discharge. yes, precision-question about this separate. clear-clear cheapest cell used that base, вспоминать about why not values displayed precision. have any недочёты (goods received): 1. one of current testers not display (displayer: 0.00а). впринципе, i was дефекту подобному to, ordered and 3 pcs, instead of 1. 2. item in even does not contain label/code which can find it using техн. har-ing. 3. as however, the technical data sheet of and device (har-ing technical where has). installed by experienced, that's voltage (рез screen-you have at which) = 3.3 (in). less than 9-top (in), again, similar devices of information on (from aliexpress).

verifed buyer
13 Apr 2018 09:28

кривоватым slightly come with usb output

verifed buyer
10 Apr 2018 22:14


verifed buyer
10 Apr 2018 08:54

very good

verifed buyer
10 Apr 2018 07:24

work. fast shipping and shipping. отслеживалась package. thanks to store.

verifed buyer
9 Apr 2018 07:34

and мерит shows. happy. ₽ 191.20 used to take

verifed buyer
7 Apr 2018 12:37

work,, tracked and

verifed buyer
7 Apr 2018 01:47

16:41 march 17 information received parcel 2018.04.05 14:46 (GMT-7): delivered. all. quality store for thank you.

verifed buyer
6 Apr 2018 04:57

полмесяца for дошло новосибирск in. work. power phone аккумы check now'll can

verifed buyer
3 Apr 2018 13:04

works well left отсеял directly charging. need to found in the process of yusbi mini with input and output, goods so and satisfied.

verifed buyer
3 Apr 2018 05:41

all good, though the end of don't know after what i bought;)

verifed buyer
3 Apr 2018 03:28

excellent tester.

verifed buyer
2 Apr 2018 05:03

description all-match

verifed buyer
1 Apr 2018 23:38

other items sent (three handle) opened dispute, promise return money and wine carrier write

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