Batteries for your Solar Panels.. 

Important points to remember about batteries for your solar panel ... 

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Batteries for your solar panels

 

Charging batteries with power from solar panel is simple and straightforward. There’s no need for an inverter to change the DC power produced by the solar panel to AC, since batteries store power in DC form, it’s not possible to store AC power in batteries. Charging 6,12, and 24 volt batteries used for off grid and backup power can get a little more complicated, with unique maintenance and use requirements. If you’re interested in setting up an off grid system, talk to an expert or the people who sell the solar equipment about recommended batteries. Large batteries assemblies for off grid living are expensive, and if they’re not properly maintained they can fail quickly.

 

 

 

 Important points to remember about batteries for your solar panel

 

1.    Batteries for cars are designed to pump out a lot of power quickly, but will rapidly break down if used for long periods of low power output, so they can’t be used for an off grid power source. However, they can still be charged with PV panels.

2.    Always buy deep cycle batteries for storing solar power. Deep cycle batteries can safely discharge most but not all of the power stored in them between charges. The least expensive deep cycle batteries are marine types, the most expensive are those sold for industrial applications. Life expectancy runs from 2 to 25 years, with prices based on life expectancy. It’s a good idea to start with marine batteries, then work up to the expensive longer lasting types.

3.    Batteries used for both cars and off grid power storage are lead acid types. Newer battery technologies like nickel metal hydride are still too expensive for large battery arrays, though this could change soon.

4.    Solar charging a battery no matter what size always takes longer than charging the same battery from a standard AC outlet. Depending on what you’re charging and how low the battery is, it could take several hours to several days.

5.    Always use charge controller between the solar panel and the battery, unless the solar panel is a small 5 watts or less trickle charging types just used to top off batteries when it’s in storage.

6.    Large batteries need fuses between the solar panel and the battery and circuit breakers or fuse boxes between the battery and appliance or fixture.

 

 

 

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