Lg G2 Battery Fix

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 better than another?  If so, this article will answer these questions and give you specific things to check on before purchasing your new battery (to ensure 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 that 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 elements 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…

So the first decision to make is the sort 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’re the cheapest option but you exchange cost for some battery life and depth of discharge.  But for homeowners needing a great deal of storage for a lower price, or whether you are simply making the move to a solar panel system, lead acid batteries might be a very good option.  They’re the sort 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 better lifespan.  Unlike lead acid batteries, saltwater batteries are essentially brand new to the market and remain both somewhat untested and harder to come across.  Of the three kinds of batteries, saltwater has the best depth of discharge, so you’ll find the most output per charge before needing to recharge.

Lithium batteries are the most expensive and the longest lasting of the three kinds 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 battery may be the highest rated, but also the most expensive.  An example of a lithium ion battery is the Tesla Powerwall.

Part 2) Compare 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 explore to find the ideal battery to your system.  

Cost

Cost is probably one of the more obvious elements.  But the old saying,”you get what you pay for” holds true when buying 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 most systems, a battery will cycle daily, meaning it is going to charge and drain regularly.  With every cycle, the battery’s ability to hold the identical charge lessens slightly.  So 1 component to consider is the warranty on the battery that 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 in the EZ Battery Reconditioning application, you can extend the life of your batteries.

Length of Discharge

Depth of discharge is how much you can drain the battery before needing to recharge the battery without harming its life.  Particular solar batteries may be depleted further than others, allowing for more use between charging.  Essentially, a battery with a 90% depth of discharge per cycle provides 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 both a high capacity and higher power can run a large system for many hours; a battery with low capacity and high power can run a large system but only for a brief time.

Efficiency

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

Manufacturer

This may not be a part most would consider, but it’s something to focus on.  As with other technology, there are both reputable brands and startup brands.  A trusted brand comes with known defects and advantages; a startup brand can perhaps have better technology, but can also have yet unknown technological difficulties.  Depending upon your system demands, you might decide to go with a well-reviewed company or one that is brand new to the market.