How To Fix Makita Lithium Battery

How To Pick Out The Best Battery For a Solar Panel System, Battery Bank, or Off-Grid System

Have you ever wondered how to pick out the best battery(s) to your solar panel system (or off-grid energy system)? Or have you wondered what makes one deep cycle battery better than another?  If so, this article will answer these questions and provide 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 which work best.    We will do this in two parts:

Part 1)   Instantly compare the three main 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 conclusion of the article you will know exactly how to pick the best battery for your solar panel system!

So let’s get started…

There are three battery types that work exceptionally well; however, each battery type has pros and cons. So the first decision to make is the sort of battery that will fit your system.

Lead acid batteries are the most commonly used rechargeable battery in the world. They are also among the longest-used and most reliable batteries in existence.  When compared with the other batteries we will 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 lots of storage for a lesser cost, or if 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 are more expensive than lead acid batteries, but also have a greater lifespan.  Contrary to lead acid batteries, saltwater batteries are essentially brand new to the market and remain both somewhat untested and more difficult to come across.  Of the 3 types of batteries, saltwater has the best depth of discharge, so you’ll get 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.  A good example of a lithium battery is the Tesla Powerwall.

Part 2) Assess the elements of batteries.  As soon as 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 explore to find the perfect battery to your system.  

Cost

Cost 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 ideal choice always.

Battery Life and Warranty

For most systems, a battery will cycle daily, meaning it will drain and charge regularly.  With each cycle, the battery’s ability to hold the identical charge lessens slightly.  So 1 component to consider is the guarantee on the battery which 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 application, you can extend the life of your batteries.

Depth of Discharge

Depth of discharge is how much you can drain the battery before needing to recharge the battery without harming 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 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 a battery can provide at a given moment.  A battery with a high capacity and high power can run a large system for several hours; a battery with low capacity and high power can run a large system but only for a short time.

Efficiency

Efficiency is the amount of energy used compared to the amount of energy it took to save said 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.  The higher the efficiency, the more cost-effective the battery.

Manufacturer

This might not be a component most would consider, but it is something to pay attention to.  As with other technologies, there are both reputable brands and startup brands.  A trusted brand includes known defects and advantages; a startup brand can perhaps have better technology, but could also have unknown technological issues.  Based on your system needs, you may decide to go with a well-reviewed firm or one that is brand new to the market.