Power Bank Charger Sale Collections provide portable battery,usb powerbank Hot New White 4 bit color OLED USB detector USB voltmeter ammeter power capacity tester meter voltage current power bank charger. Price at this time US $8.18/piece. Check price now to get discount! Dont waste your time. Buy Now only in eiemsun Store Trusted Seller Store!
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Note:
- It forbid for being used for inductive load, eg: the load with motor and fan. it can be used digital products, eg: mobile phone,power bank,USB flash drive and etc..
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Operating instructions:
When contact the power supply, the screen shows welcome window firstly and then comes into main interface. The first line displays voltage, power and data set. The second line displays current and accumulated capacity.
Current zero calibration function
Because of the influence of component aging and temperature variation after long-term use, the error may become bigger when it measures small current. So you can keep pressing the button on the back to connect power supply in the no-load terms, until the LED lights. The calibration is accomplished.
Over-voltage and Under-voltage reminding function:
When the voltage is over 5.3V (less than 4.7V), the arrow 
(
) will be flashing to remind the voltage is too high (low). When the voltage becomes to 4.7V-5.3V, the arrow will be disappeared.
In the main interface, you can click the button to switch data set one by one. And it provides for storing and checking 0 to 9 totally ten group data set.
Capacity stored function
When data set is between the 1 to 9 group, the current capacity will be stored after power off. And the stored capacity will be accumulated after power on. When the data set is 0 group, the current capacity will be stored after power off. When power on next time, the stored MAH is blinking displayed .When the new MAH is up to 1 MAH, the stored MAH will be covered, and the values will start over.
In the main interface, click 2 times the button on the back (the time interval of the two times is within 0.5s), then you can get into data check window and see the capacity of the current data set. In this window, you can click the button to check the next data set, and when you keep pressing the button more than 2s, the current data set will be cleared. And if you click the button two times, it will come back to the main interface.
Counting the capacity and efficiency of the mobile power bank battery:
Ah data * output voltage ÷battery voltage ÷ efficiency = mobile power bank battery Ah (output voltage is typically 5V, the battery voltage is generally based on 3.7V, typically by 85-90% efficiency)
Capacity unit switch function:
In the main interface, keep pressing the button, until the BLN lights (time about 2s), loose the button, the capacity between mAh and mWh is switched.
Screen rotation function:
In the main interface, keep pressing the button, until the BLN lights and then goes out (time about 4s), loose the button, the screen is rotated and automatically stored for being used next time conveniently.
Shut-down screen function:
In the main interface, keep pressing the button more than 6s, then loose the button, the screen display can be shut-down and come into power saving mode. In the meaning time, the BLN is flashing. You can click the button to come back to the main interface.
Test Picture
Products Display
Return Policy
If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service
On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).Hot New White 4 bit color OLED USB detector USB voltmeter ammeter power capacity tester meter voltage current power bank charger
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