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Ubiquiti Cloud Key Gen2: How to replace faulty battery

  1. Ubiquiti Cloud Key Gen2: How to replace faulty battery, Battery and Harddrive: Schritt 1, Bild 1 von 1
    • Because of the original batterys special form factor it was impossible to find sth that fits. I found a Lithium battery from a model aircraft shop with 7.4 V and 280 mA

  2. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 2, Bild 1 von 1
    • Because this battery is larger than the original one I decided to mount it in the HD cage. I replaced original HD with a Samsung SSD. Take out the SSD of its housing for having more space. As you can see I mount a cable from the place of the original battery to the new place in the HD cage. The SSD will be auto formated by the system !

  3. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 3, Bild 1 von 1
    • Soldering the original battery connector to the cable. Battery has 3 lines

  4. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 4, Bild 1 von 1
    • Replacement battery fixed with cable ties. I wrote down the colour assignment of my cables and put it in the HD cage.

  5. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 5, Bild 1 von 1
    • ...the old battery

  6. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 6, Bild 1 von 1
    • mission accomplished :-)

  7. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 7, Bild 1 von 2 Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 7, Bild 2 von 2
    • After some weeks of not using the device the shutdown function did not work. After checking some UI forums I found out there is a circuit board inside the dead battery.

    • I also found 2 LiPo cells with the suitable Watts and Voltages. Unfortunately my charging board is faulty. So I did further test with ordinary alkaline batteries.

  8. Ubiquiti Cloud Key Gen2: How to replace faulty battery: Schritt 8, Bild 1 von 1
    • I testet 6x AAA batterys. This scenario also works, but there will not be enough space in the HD caddy. Finally a 9 V battery block did the job.

    • As I found out the newest generation of Cloud Keys is produced with no battery. I just had 2 new CKs, both switched off immediately when loosing PoE power. It seems with new Unifi OS the device can deal better with powerloss.

    • Nevertheless I suggest changing the 2.5" HD with a 2.5" SSD and doing safe backups of your config. USV powering of PoE switch is recommendable.

Abschluss

Arbeite die Schritte in umgekehrter Reihenfolge ab, um dein Gerät wieder zusammenzubauen.

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