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樹莓派鋰電源擴展板 雙USB輸出 Pi3獨立外場供電移動電源模組

NT$505 NT$467 未稅

Raspberry Pi 樹莓派鋰電源擴展板 雙USB輸出 Pi3獨立外場供電移動電源模組

專為樹莓派打造的鋰電池移動電源,能讓樹莓派主板最大脫機工作長達9小時。當然,我也不限於用到樹莓派上,我板載2個USB-A接口,1個可以為Pi主板供電。如有需要的話,另一個可以為嵌入式液晶屏等設備供電。我的內部集成一顆進口鋰電充電/升壓管理芯片。帶上自身的電池,重量僅僅80g。嚴格按照國際樹莓派HAT擴展版尺寸進行研發,用簡單的銅柱即可和樹莓派主板進行層疊安裝。

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商品說明

Raspberry Pi 樹莓派鋰電源擴展板 雙USB輸出 Pi3獨立外場供電移動電源模組

專為樹莓派打造的鋰電池移動電源,能讓樹莓派主板最大脫機工作長達9小時。當然,我也不限於用到樹莓派上,我板載2個USB-A接口,1個可以為Pi主板供電。如有需要的話,另一個可以為嵌入式液晶屏等設備供電。我的內部集成一顆進口鋰電充電/升壓管理芯片。帶上自身的電池,重量僅僅80g。嚴格按照國際樹莓派HAT擴展版尺寸進行研發,用簡單的銅柱即可和樹莓派主板進行層疊安裝。

【性能參數:】

電池容量:3800mAH
最大放電電流:   1.4A
空載輸出電壓:   5.1V ±0.1V
標準充電電流/電壓:    1.0A@5.0V
鋰電池充滿截至電壓:  4.18V – 4.2V
CHG LED作用:
點亮: 充電器進行恆流充電。
熄滅: 充電器進行浮充,直到鋰電充滿截至。
ON LED作用:
點亮: USB-A接口向外輸出5V
熄滅: USB-A接口無電壓輸出。

Lithium Battery Expansion Board for Raspberry Pi

Features

  • Battery capacity: 3800mAh
  • Maximum output current: 1.8A
  • Output voltage: 5.1V ± 0.1V
  • Standard charging current / voltage: 1.0A/5.0V
  • It’s convenient to power on / off raspberry pi via battery swith;
  • It can last about 9 hours if only pi 3.
  • The Lithium battery expansion board can be also used on cellphone.

Note: You can still charge this battery even if the switch is turn off;

Working principle

  • The working PMU (Power Manage Unit)can be only worked for charging mode or step-up mode at the same time.
  • If the USB-A interface without any external load (like Pi), with 5V input voltage of MicroUSB, then the PMU enter charging mode. The PMU will integrate a current-limiting resistor with the external voltage, 5V voltage for Lithium battery, around 4.6V-4.7V voltage for USB-A interface.(The “ON” LED lights )
  • The PMU would enter step-up mode without external 5V voltage. Under this circumstance, turn on the switch, USB-A interface can output maxmum 5V voltage, two USB-A interface can maxmum output 1.8A current. The PMU itself has current-limiting protection. it will be short circuit when over 1.9A current.