Weak Car Battery Fix

Or have you wondered what makes one deep cycle battery greater than another?  If so, this article 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) to your solar panel system, there are 3 categories of batteries that work best.    We will do this in 2 parts:

Part 1)   Quickly compare the three main types of solar batteries (lead acid, saltwater, and lithium).   And,

Part 2)   Assess the components of batteries, such as: depth of discharge, capacity and power, efficiency, battery life, and maker.

By the conclusion of the article you will know exactly how to pick out the ideal battery for your own solar panel system!

So let’s get started…

So the first decision to make is the type of battery that will fit your system.

They’re also one of the longest-used and most dependable batteries in existence.  Compared to the other batteries we’ll 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 lots of storage for a lower cost, or whether you are just making the move to a solar panel system, lead acid batteries may be a very good option.  They’re the type of battery we use in the majority of the battery banks in our solar panel systems.

Saltwater Batteries

Saltwater batteries are more expensive than lead acid batteries, but also have a greater lifespan.  Unlike lead acid batteries, saltwater batteries are essentially brand new to the industry and stay both somewhat untested and harder to come across.  Of the 3 types of batteries, saltwater has the best depth of discharge, so you’ll find the most output per fee before needing to recharge.

Lithium Batteries

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 is probably the highest rated, but also the most expensive.  A good example of a lithium battery is the Tesla Powerwall.

Part 2) Compare the elements of batteries.  Once you’ve picked the best battery type for your own solar panel or off-grid system (that meets your system’s needs), there are components to research to find the ideal battery for your system.  

Cost

Price is probably one of the more obvious components.  But the old saying,”you get what you pay for” holds true when buying batteries also.  Sometimes though, certain batteries could be overkill for your system so the most expensive battery may not be the best choice always.

For most systems, a battery will cycle every day, meaning it will drain and charge regularly.  With each cycle, the battery’s ability to hold the same charge lessens slightly.  So 1 component to consider is the warranty on the battery which guarantees a specific number of cycles of useful life.  But keep in mind that if you use the maintenance and reconditioning methods we teach you at the EZ Battery Reconditioning application, you can extend the life of your batteries.

Length of Discharge

Length of release is how much you can drain the battery down before needing to recharge the battery without damaging its life.  Certain solar batteries may 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 store.   Power is how much energy that a battery can provide at a certain moment.  A battery with a high capacity and higher power can run a large system for many hours; a battery with low capacity and higher power can operate a large system but just for a brief time.

Efficiency

Efficiency is the amount of energy used compared to the quantity of energy it took to store energy.  Batteries require power to control and efficiency compares the energy taken to charge a battery together with the amount of energy which the charged battery generates. 

Manufacturer

This might not be a component most would consider, but it’s something to focus on.  Like other technologies, there are both reputable brands and start-up brands.  A trusted brand includes known defects and benefits; 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 company or one that is brand new to the market.