How To Pick Out The Best Battery For a Solar Panel System, Battery Bank, or Off-Grid System
Or have you wondered what makes one deep cycle battery greater than another? If so, this report will answer these questions and give you specific things to check on before buying your new battery (to make certain you get the most bang for your 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) Quickly compare the three chief types of solar batteries (lead acid, saltwater, and lithium). And,
Part 2) Compare the components of batteries, such as: depth of discharge, power and capacity, efficiency, battery life, and maker.
By the end of the article you will know exactly how to pick the best battery to your solar panel system!
So let’s begin…
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 sort of battery that will fit your system.
They are also one of the longest-used and most dependable batteries in existence. When compared with the other batteries we will discuss in this report; they are the cheapest option but you exchange price for some battery life and depth of discharge. But for homeowners needing a great deal of storage for a lesser price, or whether you are just making the move to a solar panel system, lead acid batteries might be an excellent option. They’re the sort of battery we use in most of the battery banks in our solar panel systems.
Saltwater batteries are more expensive than lead acid batteries, but also have a better lifespan. Contrary to lead acid batteries, saltwater batteries are essentially brand new to the industry and stay both somewhat untested and more difficult 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 types of solar batteries. Their depth of discharge is less than that of a saltwater battery, but more than that of a lead acid battery. Comparing all three options, the lithium ion battery may be the highest rated, but also the most expensive. An example of a lithium battery is the Tesla Powerwall.
Part 2) Assess the elements of batteries. As soon as 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 to your system.
Price is probably one of the more obvious components. But the old saying,”you get what you pay for” holds true when purchasing batteries also. In some instances though, certain batteries could be overkill for your system so the most expensive battery might not be the best choice always.
For many systems, a battery will cycle every day, meaning it is going to charge and drain regularly. With each cycle, the battery’s ability to maintain the identical charge lessens slightly. So 1 component to consider is the warranty on the battery that guarantees a certain number of cycles of useful life. But keep in mind that when you use the maintenance and reconditioning methods we teach you in 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 damaging its life. Particular solar batteries may be depleted further than others, allowing for more use between charging. Basically, a battery with a 90% depth of discharge per cycle provides more battery power per charge compared to a battery with less.
Ability and Power
The more capacity a battery has, the more power it can store. Power is how much energy that a battery can provide at a given moment. A battery with a high capacity and higher power can run a massive system for many hours; a battery with low capacity and higher power can operate a large system but only for a short time.
Efficiency is the amount of energy used compared to the quantity of energy it took to save said energy. Batteries require power to control and efficiency compares the energy taken to control a battery with the amount of energy which the charged battery produces.
This may not be a part most would consider, but it’s something to pay attention to. Like other technologies, there are both trusted brands and start-up brands. A trusted brand includes known flaws and advantages; a start-up brand can perhaps have better technology, but can also have yet unknown technological difficulties. Depending upon your system needs, you might decide to go for a well-reviewed firm or one that is brand new to the market.