Solar panel and Routerboard

[mobilexpi]

Hello,
I want to know if for a Routerboard (with 3 radios)+ a PS5 is enough a solar panel of 40watts?
My latitude is South 35º

Thanks

[WHT]

I doubt it. Those four devices will need close to 40 watts just to run them for a four hour window during the day, so you won't have any wiggle room to charge a battery for the other twenty hours.

[freezer2k]

Watt doesnt imply any runtime.

I understand his panel is able to generate 40Watts. So if his combo needs something below of 40W it should run fine.

Anytime unused power is being generated (router need less than 40W), this energy could be charged into some huge battery. Then there will be a 'backup' if theres not enough sun or even for peeks >40W.

[mobilexpi]

Of course that I'll need batteries for the night (and low sun days), will be enough with one auto battery?? Do you think that I'll need more power?

Best regards,

Salvador

[granlabor]

Hi Mobilexpi

I just finished a smaller setup to hold a bullet5 and a NS5 on a mountain and i'm very satisfied with sollar power.

For your system I suggest:
at least 130W PV pannel
6 amp charge controller
2 deep cycle battery, 115 amp each
this setup should be enough to hold almost 3 days without sun and still have power to recharge the battery.

The above settup is very close to borderline. Perhaps you could invest a little more and get a larger charge controller in case you need to add another PV pannel.

I'm estimating:
2.3 AMP @ 12v to hold the RB with 3 minipci radios (27,6 watts)
+ 12 volts, 1 amp (12 watts) for the PS5.
Gives you a total of 40 watts.

90% of battery amp = 207 amp
40 watts / 12 volts = 3.33 amps
207 amp hour / 3.33 = 62 hours
62 / 24 = 2,58 day without any sun

Do not use car battery. It has only 50% AMP capacity. If you continue to cycle it it will ruin in less than a year.

Use deep cycle battery that is designed for slow deep discharge.

Expect to get 4 hours of sun on a very hot and clear day. On an average day you will get 2 hours of sun. The best charging period in between 9 am and 3 pm.


Best regards,


Joe Alves

[mobilexpi]

Thanks for the numbers Joe. I'll see the price for the 130W panel.

[granlabor]

You're welcome Salvador.


Don't forget that you will need a good charge controller. It's the heart of your sollar system.

It will stop charging when the battery is full but will maintain the equipment running. If the battery gets very low, it will turn the radios of to preserve the battery.

I use a controller made by PHOCUS, model CA08-2.1 This model is for a sollar pannel up to 130 watts. Because of your AMP load you might need a bigger controller, in case you have to add a second pannel.

[bobos99tcc]

Hi,

1 problem: how country location?
2 how many sun day in years?
3 how many sun day in winter month?
4 please write full used system? for example RB433 + 2xcm10 1xr52

my system 205W/24V solar, 2x accumulator 100Am/12V serial line 24V. Use rb153+2xr52, rb112+1xr52.

;-)