Basic knowledge that will increase your inverter battery life span

12V-200AH SMF BATTERY

LIFESPAN

The lifespan of an inverter battery depends on its usage and maintenance. However, most manufacturers give between one to two years warranty on batteries.

COST

The capacity of the battery, type and brand determines its price but generally a 200amp inverter battery sells for between N98,000 and N120, 000, 150amp for between N65, 000 and N80, 000, while 100amp sells for between N45, 000 and N50, 000.

COMMON MISTAKES THAT KILL INVERTER BATTERIES

There are two types of inverter batteries that are commonly used; wet-cell and dry-cell. One of the mistakes people make that easily damage an inverter battery is allowing power stored in it to drain completely before re-charging it. This kills the battery’s cells faster. 

The other mistake is not keeping batteries in properly ventilated areas. It is important to always use a well ventilated area for inverter installation. The inverter battery gets heated up during charging and operation. An airy place reduces the heating up of the battery.

It also reduces the frequent water topping requirement.

For the wet-cell batteries, not checking the water level of batteries also damages them quicker. It is recommended that you check the water level of your battery every two months. Ensure that the water level is maintained between the maximum and minimum water limit. Always top up the battery with distilled water. Do not use tap water or rain water as it contains excess minerals and impurities which affect the life and performance of the battery.

Allowing battery terminal to get rust and corroded kills it faster. Always keep the battery terminals corrosion and rust free by cleaning it.

INVERTER BATTERY SIZE CALCULATION

Generally, the size of the battery is determined by the wattage load and the projected runtime. 
Using a battery that is not strong enough can cause the inverter not to power up and may lead to discharging issues that could permanently damage the battery.  

The formula mentioned below can be used to calculate the battery size:
Battery size = Inverter rating in watts ÷ input voltage x usage time (hrs). e.g. 300W ÷ 12V x 5 hours = 125 Amp


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