Saw this article this morning, it seemed like a nice noobs intro into powering your laptop and 3g Router with a small solar system. Sorry its a mobile site.
http://m.news24.com/fin24/Tech/Gadgets/Dodge-power-cuts-with-solar-powered-internet-20150220
If it seems like RAS then feel free to delete.
Snippet
" Calculations
To power the likes of an internet
router, Kurien’s setup can easily
handle it.
A typical 12 Volt, 1 Amp internet
router, for example, draws 12
Watt hour (Wh) (Volt X Amp =
Watt X Hour = Watt hour) and 48
Wh over four hours.
“Technically, this is very
conservative. The 1 Amp figure
is for the power supply, meaning
the router typically draws a lot
less. I measured my router, and
it only draws 0.2 Amps on
average, which equates to
2.4Wh,” Kurien told Fin24.
An 18Ah, 12V battery then - like
that of Kurien’s - is capable of
powering this router alone.
Kurien said it’s wise to typically
only drain 50% of the battery
when using it to avoid severely
shortening it's life span. As a
result, using this calculation can
assist with working out your
battery’s capacity: 18Ah x 12V =
216 Watt hour X 0.5 = 108 Wh
To work out the energy your
panel can supply to the battery,
multiply Watts by the hours
exposed to sunshine, then
multiply the result by 0.85 (for
natural system losses).
Example: A solar 50W panel in 4
hours of sunshine, 50 x 4 x 0.85
= 170 Watt Hour. This is the
amount of energy the solar panel
can supply to the battery."
http://m.news24.com/fin24/Tech/Gadgets/Dodge-power-cuts-with-solar-powered-internet-20150220
If it seems like RAS then feel free to delete.
Snippet
" Calculations
To power the likes of an internet
router, Kurien’s setup can easily
handle it.
A typical 12 Volt, 1 Amp internet
router, for example, draws 12
Watt hour (Wh) (Volt X Amp =
Watt X Hour = Watt hour) and 48
Wh over four hours.
“Technically, this is very
conservative. The 1 Amp figure
is for the power supply, meaning
the router typically draws a lot
less. I measured my router, and
it only draws 0.2 Amps on
average, which equates to
2.4Wh,” Kurien told Fin24.
An 18Ah, 12V battery then - like
that of Kurien’s - is capable of
powering this router alone.
Kurien said it’s wise to typically
only drain 50% of the battery
when using it to avoid severely
shortening it's life span. As a
result, using this calculation can
assist with working out your
battery’s capacity: 18Ah x 12V =
216 Watt hour X 0.5 = 108 Wh
To work out the energy your
panel can supply to the battery,
multiply Watts by the hours
exposed to sunshine, then
multiply the result by 0.85 (for
natural system losses).
Example: A solar 50W panel in 4
hours of sunshine, 50 x 4 x 0.85
= 170 Watt Hour. This is the
amount of energy the solar panel
can supply to the battery."