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DIY – How to make a power bank by yourself

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For more information, please visit Richtek at http://www.richtek.com

How to make a safe and efficient power bank? The safety and performance of power bank is critical. It’s easy to DIY a power bank, but how to select the key control IC for your power bank?

The most important part is the IC’s protection function and conversion efficiency. A highly integrated IC also reduces the complexity and cost of the circuit board, and brings better experience to consumers.

Richtek’s RT9480 EZPBS™ Power Bank IC has built-in Over Voltage Protection, Output Short Circuit Protect, Over Current Protection, supports Charge and Discharge at the Same Time, Dynamic Power Management, Temperature Regulation, Auto-recharge, Battery Temperature Sensing, and meets JEITA charging guidelines. Contact Ricthk’s sales or distributors to get datasheet, design supports or evaluation boards (EVB).

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25 Comments on "DIY – How to make a power bank by yourself"

  1. Where can I find the richtek rt9480 power bank evb ?
    I'm from India and all I can find here on element14.com is the rt9480 ic but not the evb as shown in the video please help ! 

  2. hi , i would like to buy RT9840 and yet i live in malaysia. where i can buy it ?

  3. Lukas H. says:

    Cute bloopers ;)

  4. Hi, 
    can I purchase that item in Croatia, South Eastern Europe?

  5. ThoraniosX says:

    Where can I buy this in the U.S.?

  6. hi do you know of any 1x ,2x, 3x ,4x, 5x, 18650 box that uses this circuit board and utilizies its functions ? i have bout few but all are using tpower 4221b which is almost equal to this .. but i want to have many of different types..

  7. e Blessed says:

    Do you have one that's solar powered?

  8. Where I can buy the case and the circuit from BD? How much will it cost?

  9. WERE TO BUY THE RICHTEK RT9480 power bank EVB x 1 EICHTEK TECHNOLOGY :D

  10. Sam says:

    Fail! It cant reach 2A with that small inductor..
    Nowadays mobiles require 2A at least or 2.4A of current power..
    And keep in mind the voltage on D+ & D- to suit the mobile you charge with.

  11. tan hock jun says:

    可爱的小姐,好想认识她…

  12. Hafiz Haikal says:

    May i know What case is that? and where to buy it?.
    I'm decide to make my own Power Bank, but I need the Perfect case for my Power Bank
    and how to add ON/OFF Button? Thank you
    #Sorryformybadenglish

  13. Where to buy that on indonesia ?

  14. how to purchase?

  15. EZEPROJECTS says:

    It doesn't look like this is rechargeable? So, if not, you just throw it away when batteries die?

  16. EZEPROJECTS says:

    No, I looked at the specs and it appears there's a charging port.

  17. Yu-Kang Chen says:

    How can I get this board in Taiwan?

  18. we need Micro USB or Type-C USB input, cause now all charger have this type connector. cause it's difficult to find Mini USB charger now.

  19. Damian Vaz says:

    it can charge the batterys up to how many amps?

  20. i have 50000mah but once i press the switch it will just be blinking light for 5 times but it doesn't supply power to the USB port, pls what can i do

  21. how can i get the board in Nigeria, pls

  22. Ziad zizou says:

    can I use 5000 mAh Battery?

  23. PauL Shinda says:

    hey, comrades can i created a wireless powerbank

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