Tall tubular batteries are best used for off-grid solar power plants because of their enhanced electrical and thermal properties. These batteries have a higher charge cycle than normal batteries and a higher discharge capacity than both short tubular and normal batteries.
Moreover, you can use a tall tubular battery with a home inverter or UPS or you can even use them to start your car, considering you can fit a tall tubular battery in your car. However, due to their heavier weight, larger size, and higher cost, their best use is limited to off-grid solar power plants.
Here are some advantages of tall tubular batteries:
Longer Lifespan: Tall tubular batteries typically have a longer service life compared to normal (flat plate) batteries due to their robust construction.
High Efficiency: These batteries are known for their higher charge acceptance and efficiency, providing better performance under continuous usage.
Deep Discharge Capability: They can handle deep discharges better than some other battery types, making them suitable for frequent power cuts.
Low Maintenance: They require less frequent topping up with distilled water, reducing maintenance needs.
Better Performance in High Temperatures: Tall tubular batteries perform well even in areas with high temperatures, making them suitable for tropical climates.
Stable Backup Power: Their construction allows for consistent and reliable power delivery during extended outages.
Here are some disadvantages of tall tubular batteries:
Higher Initial Cost: A tall tubular battery is 63% more expensive than a normal battery and 16.5% more expensive than a short tubular battery.
Size: These batteries are larger, so they require more space for installation.
Now, Here is the explanation of why tall tubular batteries are best for off-grid solar power plants.
There are two main reasons why tall tubular batteries are best for off-grid solar power plants.
Reason 1: Higher depth of discharge
The power generation of a solar power plant is weather dependent, and during lower sunshine days, solar panels produce low power hence the batteries will be less charged. But, your power demand will remain the same, and this will lead to a higher depth of discharge of the batteries. A Month of bad weather will make your batteries frequently higher depth of discharge which may lead to permanent damage to your batteries.
To overcome this problem a tall tubular battery is preferable over normal batteries. Because these batteries have up to 20% more depth of discharge than normal and short tubular batteries.
A normal lead acid battery or a short tubular battery has a 50% depth of discharge, which means you can discharge them up to 50% without reducing their life acceptance. Now, discharging them more than 50% will reduce their life acceptance, and frequently discharging these batteries more than 80% can permanently damage them.
The depth of discharge capacity for lead acid batteries can be increased by increasing electrolytes and tall tubular batteries carry 30% more electrolytes than normal as well as short tubular batteries.
An increase in the volume of electrolytes improves the performance of the lead-acid batteries by increasing the discharge capacity between 5% and 20% depending on the discharge current. Moreover, some companies even manufactured tall tubular batteries with 47% more electrolytes.
Reason 2: Charge Cycles
One charge cycle is equal to discharging a fully charged battery up to 80% of its capacity and then fully charging it again. The charge cycle of a battery can be increased by better electrode design. Here, the charge cycle of a normal battery is 50-1000. Whereas for short tubular and tall tubular batteries, the same is 800-1400.
In an off-grid solar power plant, batteries get charged and discharged every day, hence a battery with a higher charge cycle is more economical for an off-grid solar power plant than a battery with a lower charge cycle.
Now, a low DOD [depth of discharge] increases the charge cycles of a battery. Since tall tubular batteries have a higher depth of discharge than tubular batteries, tall batteries will give more charge cycles for the same amount of output power. This means tall tubular batteries will have more life acceptance than tubular batteries.
Tall tubular battery vs. normal Battery
Tall tubular batteries are taller than normal batteries and have better all-over performance. It provides longer backup time and has a higher charge cycle. However, it is 63% more expensive than a normal battery.
Tall tubular batteries have tubular electrodes whereas flat batteries have flat plate electrodes. It carries 30% more electrolytes than normal batteries, which increases the thermal and electrical properties of tall tubular batteries.
Tall tubular battery vs. Short Tubular Battery
The electrode design of both short tubular and tall tubular batteries is the same, however, a tall tubular battery is taller than a shot tubular battery and carries 30-47% more electrolyte. Due to being taller in size, the electrode length of tall tubular batteries is higher than short tubular batteries.
Due to the enhancement in size and electrolyte capacity, tall tubular batteries have better electrical and thermal properties. A higher electrolyte capacity increases the depth of discharge of Tall tubular batteries, a tall tubular battery has up to 20% higher depth of discharge than a short tubular battery.
Moreover, these enhancements also increase the cost of tall tubular batteries. A tall tubular battery is 11.7% to 16.5% more expensive than a short tubular battery.
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