Most populare power bank 20000mah fpr laptop power bank wholesale from battery manufacturer

Feature:

1) LCD Pannel dispaly the battery capacity and output voltage.
2) Press button to display battery capacity, Battery symbol and output voltage standing 3 seconds, press the button 3 seconds, output voltage symbol will flicker,then press the button,can a just output voltage. After 3 seconds without action,quit voltage ajusting model,and after 3 seconds without loading,LCD pannel turn off.
3) Plug DC cable in DC output port,LCD pannel turns on,display capacity,output voltage,Power output symbol with 5 seconds;
4) Plug USB cable in USB output port,LCD pannel turns on,display capacity,output voltage,USB output symbol with 5 seconds;
5) When charge for powerbank,LCD pannel turns on,display battery capacity in percent way,and battery symbol run as horse-rising,
6) LCD Pannel will flicker to give an alarm.

Specification:

Q1: Do you offer samples for testing?                                            

A: Yes, we offer samples for testing, shipping cost paid by buyer. Besides we welcome our customers to take sample as we believe seeing is believing.

Q2: What's your MOQ?

A: There is no MOQ for our BKR brand or No brand order and 1000pcs for OEM order.

Q3: Do you have warranty?

A :Yes, we have warranty of 18month free worrying.

Q4: Do you have certificates for your products?

A:Yes, there are FCC RoHS CE UL Certifications and meet PSE/KC/CK/SAA.

5. Can you design the new housing based on our design?

A: We can design. one week mock up sample. 30days sample test 45days start to MP?

6. What's the main product of you factory?

A: Our main product is Li-ion battery pack, USB serial charger and Hub for PC/Phone. 

7. Do you have some new product coming?

A: We will design 6 new product with different outlook and function about the laptop battery, power bank, wall charger and USB serial hub.

8. How do control your quality? 

A: Each item will be Aging test before shipping.