Well, without the Watts or Current consumed it's impossible to make
any estimations. Just a rough guess based on other people's usage as you
mentioned below.
Fernando
On 23/05/2014 12:47, heini66 wrote:
the wr741 is running with 5v dc. i talked to the user and he toled me,
it is possible to opperate the mobile ap for 5-6h, belonging how much
trafic is running on it. sorry, i can't tell somthing about the
current.( don't own one to get a messurement ) but when he is able to
work with 4 aa mignon for 5-6h, it can't be that much.
2014-05-23 12:40 GMT+02:00 Fernando Frediani <fhfredi...@gmail.com
<mailto:fhfredi...@gmail.com>>:
Can you specify the usage(in Watts) of these equipment you
mentioned and voltage ?
A 50W solar panel looks Ok, but you need to calculate the usage in
Amps so you can find out how long the battery of that capacity can
run without sun and you need the Watts and Voltage for that.
Fernando
On 23/05/2014 09:58, valent.turko...@gmail.com
<mailto:valent.turko...@gmail.com> wrote:
How do you calculate ideal battery for solar nodes? I know that
it depends on how much routers there are planned. But for example
let's use solar node that has one nanostation nanobridge for
unplink and picostation for AP.
I guess that 50W solar panel should be enough, right? But how big
should the battery be?
Is 7Ah enough?
At my company we use 92Ah batteries for powering ADSL DSLAMs, and
are replacing then now with new ones. Using a too big battery is
also not advised because then you need much bigger solar panels
because lead battery also looses lots of power due it's internal
resistance.
So 92Ah is much too big, but is 7Ah too small? Does anybody have
experience with batteries and solar power?
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