Nicd Battery Fix Guide

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 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) for your solar panel system, there are three categories of batteries that work best.    We will do this in 2 parts:

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

Part 2)   Compare 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 just how to pick out the ideal battery to your own solar panel system!

So let’s begin…

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

Lead Acid Batteries

They are also among the longest-used and most reliable batteries in existence.  Compared to the other batteries we’ll discuss in this report; they are the cheapest option but you trade price for some battery life and depth of discharge.  But for homeowners needing a great deal of storage for a lesser cost, or whether you are just making the transfer to a solar panel system, lead acid batteries may be an excellent 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 essentially brand new to the industry and remain both somewhat untested and harder to come across.  Of the 3 kinds of batteries, saltwater has the greatest depth of discharge, which means you’ll find the most output per charge 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 options, 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.  As soon as you’ve chosen 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 perfect battery for 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 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 every cycle, the battery’s ability to maintain the same charge lessens slightly.  So one 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 farther than others, allowing for more use between charging.  Essentially, a battery with a 90% depth of discharge per cycle will provide more battery power per charge compared to 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 given moment.  A battery with both a high capacity and higher power can run a large system for several hours; a battery with low capacity and high power can run 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 charge and efficacy compares the energy taken to charge a battery together with the amount of energy which the charged battery produces. 

Manufacturer

This might not be a part most would consider, but it’s 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 startup brand can perhaps have better technology, but can also have yet unknown technological difficulties.  Based on your system needs, you might decide to go with a well-reviewed firm or one that is brand new to the market.