10w solar panel means

a 10w solar panel means at peak efficiency (direct sunlight to the solar panel), you will get 10 watts (at any given second).

Watts = volts x amps

a 12volt battery needs an "incoming" current of at least 13 volts to charge it; 13.5 volts is better, so if the output voltage of the panel is less than 13 volts it wont do anything.

Even if it is, 10 / 13.5 = .74 amp.( three quarters). It will take a long time to charge a deeply discharged deep cycle battery.


Would a 6 watt panel charge a small sealed lead acid battery?
Yes, but slow. The 7ah batteries charge well, these will charge any 12v battery. I would suggest a CHARGE CONTROLLER, even though they are not powerhouses, these panels can overcharge a 12v battery over a few days if you forget,




A 10W panel will charge A 10 watt 12 volt light bulb, provided the panel voltage is 12 volt. If it is simply a 0.5 volt panel, then you have about 20 amps, but you may be restricted to a lamp with a 0.5 volt rating.


How can you charge a car battery with solar panel?

I have a 10 watt solar panel. I want to charge a car battery with it. What other equipment or peripherals I would need?
Thank you

That panel is too small to charge a car battery. You won't get more than half an amp out of it.

SOLAR PANEL 10 WATT 10W 12 VOLT -Very Efficient !

$17.00



10-watt cells that are 15 inches by 9 inches.
http://www.ehow.com/how_5025930_make-watt-solar-panels.html

I only need about 80 - 100W panels to travel about 20km per day. Even though this bike will probably take about a day or two to charge what is probably about a 36V 10hah battery on the back from empty to full capacity it will definitely extend your daily range if you travel to work and back each day and can park it in good sun. Probably extend range by about 10km or so.


No modifications speed greater than 32 km/h. for E Bicycles.

On firm, flat, ground, a 70 kg person requires about 30 watts to walk at 5 km/h.

That same person on a bicycle, on the same ground, with the same power output, can average 15 km/h,

===============================================
For additional examples of magnitude for multiples and sub multiples of the Watt, see Orders of magnitude (power)

Value Symbol Name Value Symbol Name
10−1 W dW deciwatt 101 W daW decawatt
10−2 W cW centiwatt 102 W hW hectowatt
10−3 W mW milliwatt 103 W kW kilowatt
10−6 W µW microwatt 106 W MW megawatt
10−9 W nW nanowatt 109 W GW gigawatt
10−12 W pW picowatt 1012 W TW terawatt
10−15 W fW femtowatt 1015 W PW petawatt
10−18 W aW attowatt 1018 W EW exawatt
10−21 W zW zeptowatt 1021 W ZW zettawatt
10−24 W yW yoctowatt 1024 W YW yottawatt