Please Note：
When the voltage of your solar panel don't satisfy your storage battery, you can take two or more same solar panels together in series.
Such as,two 5.5v solar panel take together in series, so its voltage is 11V. when the voltage of solar panel satisfy your storage battery.
In order to Speed up the rate of charge, you can take two or more same solar panel together parallel connection.
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Applications:
-- Small home projects
-- Science projects
-- Electronic Applications
-- Charging small DC batteries
-- Build your DIY powered models/solar toys / solar displays/solar lamp/solar torch.
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If you need to draw more power than the module can provide. If a single module does not work, and you have multiple modules, link the modules in series to increase the voltage or in parallel to increase the amperage.
Amperage remains the same and voltage increases additively while the modules are connected in series. Voltage remains the same and amperage increases additively while the modules are connected in parallel. Connecting the modules in series and parallel will result in an increase in both voltage and amperage.
For example: imagine having four 9 volt batteries rated at 0.5 amps. Connecting two batteries in series would give you 18 volts at 0.5 amps. Connecting two batteries in parallel would give you 9 volts at 1 amp. Connecting two batteries in series, another two in series, and then connecting these two sets in parallel will give you 18 volts at 1 amp.
If you are not sure what the output is and do not want to damage your device by supplying too much power, you can get a good idea of the power your solar array will provide by doing these simple calculations.
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