You want to choose a voltage range capable of displaying the maximum possible voltage of the panel in open circuit that is when not connected to the battery or charge controller.
Do you need a solar regulator for a 10w panel.
10 x 300 watt solar panels in series 3000 watts 48 vdc battery bank 25 78 amps.
A 10w panel charging a 100ah battery.
Since this is less than 200 you need a charge controller.
21 97 user experience.
12v 10w solar panel price.
Every one of these panels was smaller than the west marine advice and smaller than the 10 of ah s in wattage yet the batteries were still murdered by controller less solar panels.
There are many different types of controllers on the market.
This product the zeallife solar panels charge controller is great for those regulating the voltage from a 12 volt solar panel to a safe level for charging 12 volt batteries.
Choosing the right solar charge controller regulator.
Since this is larger than 200 you do not need.
For example if you have a 100 amp hour battery and a 10 watt panel you take 100 and divide it by 6 600ma and you get 166 6.
Okay you get the idea it s just simple math.
It regulates the current flowing from the solar panel into the battery bank to avoid overcharging the batteries.
Why do you need a solar charge controller.
The voltage acquired from a solar panel is never stable and varies drastically according to the position of the sun and intensity of the sun rays and of course on the degree of incidence over the solar panel.
Even a diminutive 10w solar panel can produce about 0 59 0 6a in good sun.
Zeallife solar panels charge controller 8 amps battery regulator for 12v solar battery charger solar battery maintainer and 12 volt batteries power kit safe protection.
Why do we need a solar regulator.
Even a diminutive 10w solar panel can produce about 0 59 0 6a in good sun.
Every one of these panels was smaller than the west marine advisor advice and smaller than the 10 of ah capacity in wattage yet the batteries were still murdered by controller less solar panels.
Don t choose 20 volts or less as you may fail to see correctly your panel s output.
This can be achieved if the nominal voltage of the panel is lower than 17 18v and if the solar panel is a lot smaller than the charging battery e g.
The eco worthy 10 watt solar panel for 12v battery charging is an excellent example of the brand s high quality solar panel.
310 4 2 out of 5 stars category.
A range of 3 digits is usually the best such as 100 v or 200 v.
A solar charge controller frequently called regulator is similar to a regular battery charger i e.
In some rare cases a solar panel can be connected directly to a battery without a controller.
If you have a five watt panel in the above example you take 100 divided by 3 300ma and you come up with 333 3.
4 x 300 watt solar panels in series 1200 watts 48 vdc battery bank 25 31 amps.
We already saw a 12w panel producing as much as 0 72a and pushing a 220ah.