Tips on Charging Your Deep Cycle Battery for Solar Power - #OffTheGrid

November 12, 2015  •  Leave a Comment

Batteries can be a little intimidating when you first start out boondocking and spending time off the grid with your solar powered solution .  Knowing when to charge your deep cycle battery is important so that you don’t run out of power.

A fully charged battery will give you the best and longest service. Be sure the batteries are fully charged before testing or using.  A fully charged battery, without a drain or load, after the surface charge has dissipated, is 12.63 volts for a 12 volt battery.  Most people round up and say 12.7 volts.  

If you look at the chart below, you can use this information to know the current capacity of your battery at any time.  I bought a simple LED meter and digital readout that has a power switch for my setup.  I simply click the switch and the LED reads my current voltage.  

  • 12.60 volts = 93% charged
  • 12.55 volts = 89% charged
  • 12.50 volts = 85% charged
  • 12.45 volts = 80 % charged
  • 12.18 volts = 50 % charged

By using the chart above, you have a good idea on the remaining capacity of your battery and when to charge it up.

I hope this information was helpful.  I look forward to your comments below.

Tim

 

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