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Lead acid batteries have large capacities and are often available in many places around the world.
Starter batteries are designed to deliver short, high-current bursts for starting the engine, and are designed to discharge only a very small part of their capacity. For solar charging applications, you instead want a deep cycle battery, similar to those used for marine vessels or golf carts – a typical car battery will not work.
There are a few types of lead acid deep cycle batteries: flooded, sealed gelled, or sealed AGM. I recently built a portable but powerful solar battery system to power some LED string lights, a stereo, and an evaporation cooler. The final touch is to attach a cigarette lighter socket to the load terminal on the charge controller. I used a similar system to build a solar powered cell phone charging station at the 2012 Dumbo Arts Festival.
Can I use also by electrical devices without cigarette lighter connector with such a battery system? Hi Dave, You can use electronics that you would plug into your wall in your home (120Vac) with this setup, but you would need to use an inverter with your battery.
Location: Batteries Comparison: Flooded vs GEL vs AGM The Differences between AGM, GEL and FLOODED batteries So what makes these batteries different? Even though inside all AGM, GEL and flooded batteries contain lead acid, the internal construction of the battery divides them into their respective categories.
Absorbed Glass Matte or "AGM" batteries are the latest and greatest in lead-acid batteries. A daily cycle of using most the capacity would corrode a car battery very quickly, the plates and the chemistry are designed to stay nearly 100% fully charged most of the time. Deep cycle batteries are designed with larger plates and different chemistry to avoid the corrosive effect of frequently using the full capacity.

It is important to maintain a full charge when ever possible, because it will extend its life and maintain a higher efficiency.
The Trojan 22-AGM batteries are similar in size to the Xantrex PowerPack, but it does not have all of the extra features listed above. This allows you to draw a load directly from the solar panels when there is enough sunlight or from the battery when there is no solar production. In this project we used two of the Voltaic 16.8 Watt, 18 Volt solar panels, which were embedded into a dodecahedron shaped sculpture.
In addition to making cool things with solar, he does consulting on alternative energy and is pursuing his Master’s Degree in Manufacturing Engineering at NYU Poly.
An AGM battery uses a separator consisting of fiberglass between the plate and wrappers to hold the electrolyte in its place with capillary action. Flooded batteries come in the widest variety of shapes and sizes due to their widespread usage in a multitude of industries and applications. I recommend using sealed AGM lead acid batteries wherever possible and will describe in this post the trade-offs of using different battery types with portable solar panels.
Always use a charge controller with solar panels, so they don’t over charge the battery or apply the wrong voltage. The Xantrex PowerPack comes with a built-in AC inverter, surge protector, low voltage disconnect (LVD), and can be wheeled around. The cell phones all charged from the DC side of the battery with cigarette lighter chargers. Combining the lead plates, electrolyte, and fiber glass separation fibers in a confined space, AGM batteries create a "physical bond" by way of capillary action.
Flooded batteries again use lead plates, a sulfuric acid electrolyte, and plate separators but that is where it stops.
This is more efficient than using the AC inverter because we are simply stepping down the voltage from 12Vdc to 5Vdc.

Usually flooded batteries are not sealed, and do not recombine the gases to liquids internally.
Flooded batteries have the advantage of being significantly less expensive, but they require adequate ventilation, maintenance, and also have the potential liability of tipping or spilling.
Also, by avoiding the use of the AC inverter, we don’t need to convert the DC to AC and back to DC again. This capillary action holds the liquid inside the glass matting, making the AGM Battery "spill proof" if it is ever exposed. Great care must be taken with GEL batteries not to expose them to high amperage situations.
Due to the tight packing of an AGM battery, it is also the most impact resistant, and boasts the least internal resistance. High amperage situations can literally 'SCAR' the jelly inside of a GEL battery, creating a pocket.
The lower internal resistance increases the output voltage, decreases charging time, and reduces losses to heat as power flows through the system.
Flooded batteries do require maintenance, in the form of water, to routinely replenish lost electrolyte through the vents. Lead plates start to deteriorate when they touch the atmosphere, so if you fail to maintain your batteries, they will corrode and fail. GEL Batteries are slightly stronger in regards to internal construction than a flooded battery, but pale in comparison to the physical strength of an AGM battery.
Unfortunately due to the internal construction, flooded batteries have the weakest internal construction, and some very high internal resistance statistics.

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Comments Lead acid vs gel battery explosion

  1. BlatnoY_VoR
    Clamps are reversed, the charger.
  2. turkan
    This is used to power the high intensity nissan.