Or have you wondered what makes one deep cycle battery better than another? If so, this report will answer these questions and give you specific things to check on before purchasing your new battery (to make certain you get the most bang for the buck)!
When picking a battery (or batteries) for your solar panel system, there are 3 categories of batteries which work best. We’ll do this in two parts:
Part 1) Instantly compare the three chief kinds of solar batteries (lead acid, saltwater, and lithium). And,
Part 2) Assess the components of batteries, such as: depth of discharge, power and capacity, efficiency, battery life, and maker.
By the end of this article you will know exactly how to pick the best battery for your own solar panel system!
So let’s get started…
Part 1) The Three Best Types Of Batteries For Solar Panel Systems: The best type of battery for your solar panel system will be dependent on what you’re looking for. So the first decision to make is the type of battery that will fit your system.
They’re also among the longest-used and most dependable batteries in existence. When compared with the other batteries we will discuss in this report; they’re the cheapest option but you trade cost for some battery life and depth of discharge. But for homeowners needing lots of storage for a lower cost, or if you are simply making the transfer to a solar panel system, lead acid batteries may be a very good option. They’re the sort of battery we use in most of the battery banks within our solar panel systems.
Saltwater batteries are more expensive than lead acid batteries, but also have a better lifespan. Unlike lead acid batteries, saltwater batteries are basically brand new to the market and remain both somewhat untested and harder to come across. Of the three kinds of batteries, saltwater has the greatest depth of discharge, so you’ll get the most output per fee before needing to recharge.
Lithium batteries are the most expensive and the longest lasting of the three kinds of solar batteries. Comparing all three choices, the lithium ion battery may be the highest rated, but also the most expensive. An example of a lithium ion battery is the Tesla Powerwall.
Part 2) Assess the elements of batteries. Once you’ve chosen the best battery type for your solar panel or off-grid system (that meets your system’s needs), there are elements to research to find the ideal battery for your system.
Cost is probably one of the more obvious elements. But the old saying,”you get what you pay for” holds true when buying batteries as well. Sometimes though, certain batteries may be overkill for your system so the most expensive battery may not be the ideal choice always.
For most systems, a battery will cycle every day, meaning it is going to charge and drain regularly. With each cycle, the battery’s ability to hold the same charge lessens slightly. So 1 component to consider is the guarantee on the battery that guarantees a specific number of cycles of useful life. But keep in mind that when you use the maintenance and reconditioning methods we teach you at the EZ Battery Reconditioning program, you can extend the life of your batteries.
Depth of Discharge
Length of release is how much you can drain the battery before needing to recharge the battery without harming its life. Certain solar batteries can be depleted farther than others, allowing for more use between charging. Basically, a battery with a 90% depth of discharge per cycle will provide more battery power per charge than a battery with less.
Capacity and Power
The more capacity a battery has, the more power it can save. Power is how much energy a battery can provide at a certain moment. A battery with a high capacity and high power can run a large system for many hours; a battery with low capacity and higher power can operate a large system but only for a brief time.
Efficiency is the amount of energy used compared to the amount of energy it took to store energy. Batteries require power to charge and efficacy compares the energy taken to charge a battery with the amount of energy that the charged battery generates. The higher the efficiency, the more cost-effective the battery.
This may not be a component most would consider, but it is something to pay attention to. As with other technologies, there are both trusted brands and start-up brands. A trusted brand comes with known defects and benefits; a start-up brand can perhaps have better technology, but can also have yet unknown technological issues. Depending upon your system demands, you might decide to go with a well-reviewed company or one that is brand new to the market.