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| The Solar Electric Deep cycle Battery is normally discharged slowly over hours or days before being recharged. It will not provide a large boost of power like a cranking battery. However don’t drop a wrench across the terminals. Deep cycle do have a lot of spark in them. Wet lead acid solar battery -ver- Gel and AGM batteries in maintenance and cost. This is an easy one to cover. You have to check the lead acid type every few months to make sure they are not low on water. And put a little distilled water in them when needed. “Distilled” not Spring or Filtered water or over time the lead plates will be covered in what ever was in the water. You do not have these issues with gel or agm. But you do have to spend twice the money to buy a gel. Figure 10 lead acid at 85 dollars each verses 10 gel at 170 dollars each. It is kind of like getting paid 850 dollars to check the water 4 times a year. Not bad wages for 4 hours work per year. You can find factory watering devices for your solar batteries which takes care of watering for you. However they cost enough to just go ahead and buy a gel type. A good brand name for solar deep cycle is Trojan. There are many other brands that would work great. But you might come closer to finding this one local. And save the shipping cost of hazard materials which is a lot more then shipping anything else. Danger of spills and swelling when over charging or moving your solar battery around. A big do not, is do not charge a gel with a charger set for a regular or deep cycle. The gel battery will swell and the gel will come out. You can not put the gel back in once it is out. Over charging wet cell lead acid batteries will cause them to bubble out and will be all over everything and battery fumes could cause an explosion or flash fire. I recommend you build a box for your batteries. Put the batteries in it with nothing else but the connection cables on the terminals and a fuse. No electrical devices in the box at all. Install a flue in the top to allow the fumes to escape out the top and outside of the building. Never ever put and inverter or charger or controller in the same space or box with a lead acid. The fumes will ignite. Thermal runaway in simple terms means the battery is too hot and over charging and are going to explode. I have never seen this but have read that the only thing you can do is fill a 55 gallon drum with water and set them down in it. Maybe a good water sealed box to put your solar battery in that could be filled with water by the fire department if you built one that is? Best thing to do is shut off the inverter and any charging devices and call your fire department and Stay away from them. Heat and cold has a large effects on a battery. It takes extra voltage to charge when batteries are cold and less when it is warm. Good thing that solar panels charge better when they are cold. This leads people to put the batteries inside their home. Ok, I’ll go with gel inside but not wet lead acid. Better to have a building for them not connected to your home. I’m just playing it safe. Solar deep cycle batteries come in all sizes from 5 AH to over 300 AH. In another area of this site I was talking about the system over view and I spoke of what size of a solar battery bank to get and how to determine this. This depends on how much power usage you will require. It all falls together with no need for a degree in astrophysics or complicated math formulas or charts and graphs. If a solar inverter can pull 166 amps one battery would not handle it. The inverter would run till you put a load on it and then it would shut down for lack of power from the batteries. The voltage would drop under the 10.5 volt safety shut down level. This is not good on the inverter or the batteries and is not useful. Do the math on how much power is required to run your load for 24 hours in watts. Divide the watts by DC voltage (12 volts, 24 volts..) and you have the amps you need. Double that for 50% rate of discharge and you have the battery size in amp hours. Size the inverter to cover the heaviest load you will put on it at any one time. If the heaviest load is a hair dryer of 1800 watts and two lights and an electric razor. Get a 2000 watt inverter or larger. Extra solar batteries and solar panels are always a help. |
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Mainly there are two types of solar battery, The Lead Acid
and the Gel. Both types need to be Deep cycle. You can
go to the local auto parts house and get a Cranking
battery but it will be short lived. Cranking batteries are not
built to be drained deeply repeatedly. The use is to start
your car, RV or boat. It has thin plates and is meant for a
boost of power all at once, then recharged immediately.
and the Gel. Both types need to be Deep cycle. You can
go to the local auto parts house and get a Cranking
battery but it will be short lived. Cranking batteries are not
built to be drained deeply repeatedly. The use is to start
your car, RV or boat. It has thin plates and is meant for a
boost of power all at once, then recharged immediately.
What types of batteries are used with solar panels?
Solar Power System Battery |
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| Questions? 479-488-6048 |
05/25/08