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wraythezw
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Joined: Wed Mar 22, 2017 9:05 pm

RB2011 direct DC connection (Battery)

Sat Jun 22, 2019 3:28 pm

Hi Guys,
Sorry if this is a duplicate post - i've been searching the net & forums for an answer on whether it's safe to do the following.


Crude diagram :-)

Smart Charger <-----> Battery (105Ah 12vdc) <---> RB2011

I'd like to run an RB2011 directly off a 105Ah deep cycle battery that will be connected to a smart charger.
My country is experiencing prolonged load shedding, so we get +- 6 hours of grid power a day.
The RB2011 includes a GPON ONU.

I've seen a guide on youtube for a RB1100 that used a DC-DC converter - but in this case they were connecting via a power pack, not via battery direct.

Can anyone provide advice on this? I would really appreciate it - thanks!
 
jebz
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Posts: 237
Joined: Sun May 01, 2011 12:03 pm
Location: Australia

Re: RB2011 direct DC connection (Battery)

Tue Jun 25, 2019 11:17 am

The Routerboards have a wide power supply tolerance. The RB2011 has a 8-30 Vdc input specification so a 12v battery even with a charger is fine.
 
mkx
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Joined: Thu Mar 03, 2016 10:23 pm

Re: RB2011 direct DC connection (Battery)

Tue Jun 25, 2019 3:41 pm

Just be sure to include an appropriate fuse between the battery and RB ... 105Ah is awfully lots of energy to let run through RB after some shirt curcuit ...

A fuse rated at approximately 2.5A should be fine.
BR,
Metod

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