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The best battery for a solar inverter [buying guide]

Updated: Oct 14, 2023

The purpose is this blog not to sell you something but to increase your knowledge in the field of batteries. So that you can select the right battery for your solar power plant. Since there are lots of misguiding blogs out there with the only purpose of selling you the products, they are affiliated with. We decided to release blogs only on knowledge-based.


An off-grid solar inverter requires batteries that can charge fast, can be deep discharged without getting damaged, and have a high charge cycle. However, normal standard batteries are not meant for fast charging, deep discharge and have a low-mid charge cycle. Hence, these batteries are not suitable for solar inverters.


Before listing the best batteries for solar, let's understand the requirement of specific properties of the battery, that fits right for your solar power plants.

Related Posts:👉🏻 Best Battery for Inverter
 

First is Fast Charging: You have limited sunshine time to charge your batteries for day and nighttime loads. Charging a normal standard battery at a high current will dramatically increase its body temperature and reduce its life expectancy.


So a battery with better thermal management properties is required for the fast charging solar inverter. The thermal management property of the battery can be increased by:


Increasing electrolyte volume

Re-designing electrode structure.

 

Second is Deep discharge: You won’t get 8-9 hours of sunshine time on each day of a year due to bad weather, therefore your batteries for the solar inverter need to deep discharge one or many times in a year without getting damaged. And deep discharging normal standards battery could damage them.


The deep discharge capacity of the battery can be increased by the same methods as mentioned used in increasing thermal management properties, that is.

Increasing electrolyte volume

Re-designing electrodes structure.

 

And third is the High charge cycle: Discharging and then charging of the battery is equal to one charge cycle of the battery. For an off-grid solar power plant, the battery needs to be discharged and then charge one or two times each day. The number of the charge cycle and depth of discharge affects the life expectancy of a battery.


Hence to get the best value for money, it is recommended to buy a battery with a high charge cycle. The charge cycle of a battery depends upon two things.


Depth of discharge

Thermal management property


Best battery for a solar inverter

Considering all the above points the tubular batteries are best for a solar inverter. These batteries have well-designed electrodes that increase their performance and reliability.

Also, depending upon the volume of electrolyte these batteries have three different versions too, refer to the following comparison between different versions of tubular batteries.


Tubular batteries are best for Solar inverters


#1 Tall Tubular battery

Fast charging: 4/5 ⭐⭐⭐⭐

Deep Discharge: 4/5 ⭐⭐⭐⭐

Charge Cycle: 4/5 ⭐⭐⭐⭐

Price: 4/5 ⭐⭐⭐⭐

Warranty period: 36 Months

Maintenance: 4/5 ⭐⭐⭐⭐


Tall tubular batteries are the best value to money for an off-grid solar power plant, their performance is far much better than a standard flat plate battery and better than a tubular battery. These batteries have low maintenance, high charge cycle, deep discharge capacity and fast charging.


200Ah Tubular battery : Luminous Red Charge RC 25000 200 Ah

100Ah Tubular battery : Luminous LPTT12100H 100Ah


#2 Tall Tubular battery with extra electrolyte

Fast charging: 5/5 ⭐⭐⭐⭐⭐

Deep Discharge: 5/5 ⭐⭐⭐⭐⭐

Charge Cycle: 5/5 ⭐⭐⭐⭐⭐

Price: 3/5 ⭐⭐⭐

Warranty period: 54 Months

Maintenance: 4.5/5 ⭐⭐⭐⭐


Tall tubular with extra electrolyte battery has the best overall performance. Their performance is better than tall tubular and far much better than tubular and flat plate batteries. The only drawback of a tall tubular battery with extra electrolytes is its high price. However, considering the warranty period, it has the highest warranty period.


150Ah Tall Tubular battery with extra electrolyte: Luminous Shakti Charge SC18054 150Ah Tall Tubular

Luminous Shakti Charge is the only tall tubular battery with 47% higher electrolyte than its counter part tall tubular battery

#3 Tubular battery

Fast charging: 3.5/5 ⭐⭐⭐

Deep Discharge: 3.5/4 ⭐⭐⭐⭐

Charge Cycle: 3.5/5 ⭐⭐⭐

Price: 5/5 ⭐⭐⭐⭐⭐

Warranty period: 36 Months

Maintenance: 3.5/5 ⭐⭐⭐


Tubular batteries are also known as short tubular batteries.

Tubular batteries are the most economical solution for an off-grid solar power plant, these batteries are 35% cheaper than tall tubular and their performance is better than a standard flat plate battery.


120Ah Tall Tubular battery : Luminous Red Charge RC 15000 120 Ah


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Guest
Mar 30, 2022

Solar panel installation was done a year ago and till now i didn't come in need of these solar

inverters at all.

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