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Unlocking the power of inverter batteries – A comprehensive guide and top picks

Unlocking the Power of Inverter Batteries - a comprehensive guide and top picks
This article will unlock the power of inverter batteries, introduce the concept of inverter batteries, types, use steps, so as to help you choose the most suitable inverter battery.
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    The inverter is a device that converts direct current into alternating current and the frequency is adjustable.

    A reliable power supply is critical, and energy storage inverter batteries play an important role in an uninterrupted energy supply for both home and commercial energy storage solutions.

    This article will unlock the power of inverter batteries, introduce the concept of inverter batteries, types, use steps, so as to help you choose the most suitable inverter battery.

    What is inverter battery?What are the benefits of using inverter batteries?

    An inverter battery is a type of battery that is commonly used with an inverter. These types of batteries store electricity energy and can be used in off grid battery storage or during power outages.

    Benefits of Inverter Batteries:

    • Continuous Power Supply – an inverter battery provides continuous power during outages, ensuring that essential devices and systems remain operational.
    • Cost-Effective – inverter batteries are much more economical than generators, especially for facilities with small to medium power requirements.
    • Silent Operation – compared to generators with loud engines, an inverter battery can operate silently, making it a great fit for applications with strict noise requirements.
    • Environment Friendly – another advantage of an inverter battery compared to generators is it does not emit fumes and pollutants.
    • Reliability – inverter batteries are much more reliable power backup solutions with consistent performance and longevity, unlike generators that require more monitoring and maintenance.

    Which one is a good inverter battery?

    The most common types of inverter batteries are lead-acid and lithium-ion. Both work well with inverters, If Lead acid battery vs lithium ion, the lithium-ion is the best choice with higher energy density, utra-long life cycle and compact size.

    • Lead-Acid – great for applications with no weight and size restrictions. While they require frequent maintenance, the initial cost of setting up a lead-acid battery system is much lower. Lead-Acid batteries typically last 2-3 years (depending on usage) and have an efficiency of 70-80%.
    • Lithium-Ion – ideal for facilities that require longevity, efficiency, and compact size. This battery type is zero maintenance and can be used for stationary and portable applications. Lithium-Ion batteries have an average lifespan of 10 years and are 90-95% efficient. In the long-term, lithium-ion batteries are more economical and cost-effective.

    Which one is a good inverter battery

    Can I use any battery with an inverter?

    Unfortunately, not all battery types work with an inverter. Lithium deep cycle batteries are usually preferred for inverter use since they can withstand repeated discharge and charging.
    Battery compatibility with an inverter also depends on these factors:

    • Voltage – inverters have voltage requirements and the battery must match that requirement. Common inverters use 12V, 24V, or 48V systems.
    • Load Capacity – the battery should be able to provide enough current to meet the inverter’s power requirements during peak loads.
    • Reliability – battery must be able to withstand frequent discharge and recharging.

    Comparison of different kinds of inverter batteries: lead-acid battery, lithium iron phosphate battery and ternary lithium battery

    Lead-Acid Batteries
    Flooded Lead-Acid (FLA)


    • Widely available
    • Affordable to set up
    • Reliable battery technology


      • Needs regular maintenance
      • Requires ventilation systems
      • Heavy and bulky
      • Shorter life cycle than lithium batteries

    Sealed Lead-Acid


        • Maintenance free
        • Safer than flooded type lead-acid batteries
        • Can perform reliably in extreme temperatures


        • Expensive than flooded type
        • Heavier than lithium batteries
        • Shorter life cycle than lithium batteries

    Lithium Iron Phosphate


        • Long lifespan (around 10+ years)
        • Higher energy density and efficiency
        • Lighter and more compact than lead-acid
        • Low self-discharge rate


        • Higher upfront cost but much more reliable
        • Has poor performance at low temperatures

    Ternary Lithium Batteries


    • Higher energy density than Lithium Iron Phosphate batteries
    • Fast charging capabilities
    • Lightweight and compact


    • Higher upfront cost but requires less maintenance
    • Lower life cycle than lithium iron phosphate batteries but still longer than lead-acid batteries

    How to choose a battery for an inverter?

    When choosing a battery for inverter use, you must consider several factors such as compatibility, efficiency, and cost.

    Here’s an in-depth guide to select the right battery for your system.How to Choose a Battery for an Inverter

    Battery type

    According to the application scenarios, considering the factors such as cost, efficiency and compatibility, the appropriate battery type can be chosen.

    How much battery is needed for inverter?

    • Voltage – the battery’s voltage must match the inverter’s voltage. Most inverters are 12V, 24, or 48V.
    • Capacity (Ah) – battery’s capacity must be enough to handle the inverter’s power requirements.
    • Energy (Wh) – total energy capacity of the battery should be greater than the inverter’s consumption to ensure enough runtime.

    Sample Calculation:

    1. Inverter Power: 1000W
    2. Inverter Battery: 12v, 50Ah
    3. Total Daily Consumption: 12v × 50Ah = 600Wh/day
    4. Numbers of inverter batteries: 2 (The inverter can operate only when the inverter battery power is more than the inverter power.)


    When choosing a battery for your inverter, you must consider both the initial and operational cost. Lead-Acid batteries have cheaper upfront cost than Lithium-Ion but require more maintenance, which will add up to your operational cost. On the other hand, Lithium-Ion batteries are more expensive to purchase but are proven to be more cost-effective in the long run due to their longer lifespan and lower maintenance requirements.


    Make sure that your inverter and BMS (Battery Management System) can communicate effectively. Your protocols for charge control, discharge control, and safety features must match each other. make sure to follow manufacturer guidelines for your battery and inverter regarding compatibility and operation protocols.

    How to use the inverter battery?

    How to install and connect the inverter battery?

    • Locate an Ideal Installation Site – make sure that the installation site of the inverter and battery has good air circulation and minimal exposure to moisture.
    • Mount the Inverter – ensure that the installation mount and brackets of your inverters are stable and in a vertical position. The mounting surface should be sturdy and does not vibrate. Refer to the manufacturer’s guidelines for special instructions regarding your inverter.
    • Connect the Batteries – connecting the batteries to your inverter can be done through a parallel configuration to keep the voltage the same while increasing capacity. Make sure to use the proper cables for connecting the batteries’ terminals. Using color coded cable (Red for + / Black for -) can prevent mistakes and ensure correct polarity during connection.  

    How to use the inverter battery

    How to charge the inverter battery?

    You can charge an inverter battery with a matching charger of battery.

    How to maintain an inverter battery?

    To ensure battery longevity, performance, and safety, it is crucial to perform regular maintenance.

    How to maintain an inverter battery

    The maintenance process of inverter battery involves:

    • Regular inspection for any signs of damage, leakage, and corrosion.
    • Cleaning the battery terminals to clear any corrosion.
    • Ensuring batteries have enough ventilation to dissipate heat and prevent accumulation of toxic gasses (lead-acid batteries).

    Battery Specific Maintenance:


    • Most Lithium-Ion batteries have built-in Battery Management Systems. Use it to your advantage to monitor battery health, charging, and temperature.
    • Keep Lithium-Ion batteries in a cool and dry place.
    • Avoid placing the batteries in high temperatures or direct sunlight.

    How to increase inverter battery life?

    • Remember healthy charging practices such as using the right charger, avoid overcharging, and prevent deep discharge.
    • Perform regular maintenance such as cleaning battery terminals, removing corrosion, checking proper ventilation, and performing periodical equalization charge.
    • Keep the batteries cool and avoid exposure to high temperatures as excessive head degrades battery life.
    • Use the batteries regularly to keep it in good condition. Unused batteries for long periods tend to degrade faster.
    • Ensure that battery and inverter are fully compatible and your inverter’s settings are correctly configured for the battery.

    How do I know if my inverter battery is good?

    How do I know if my inverter battery is good

    1. Visual Inspection – check for physical damage, corrosion, and leakage.
    2. Performance Check – monitor charging and discharge time.
    3. Voltage Test – measure the open circuit voltage.
    4. Load Test – apply a load to the battery and measure voltage and supply duration.
    5. BMS – for lithium-ion batteries, review the BMS data and cycle count.

    Inverter battery application scenarios

    An inverter battery is an integral part of emergency power systems to ensure businesses and facilities continue to operate during grid failures. The inverter battery also can be used in the following scenarios:

    • Telecommunication Towers
    • Home Backup Power Systems
    • UPS Systems
    • Electric Utility Substations
    • Solar Power Systems
    • RV
    • Portable Power Systems
    • Medical Equipments


    Inverter batteries usually get damaged due to overcharging, deep discharging, exposure to extreme temperatures, poor maintenance, and physical damage from mishandling.

    You may consider these factors to identify the number of batteries needed for a 1000 watt inverter:

    • Take a 12v 50Ah inverter battery as an example, the total daily consumption is 12v × 50Ah = 600Wh/day.
    • The inverter can operate only when the inverter battery power is more than the inverter power.
    • So the numbers of 12v 50Ah inverter battery are 2 for 1000 watt inverter.

    No. An inverter needs a battery since it uses it to store the energy to convert DC from the battery into AC that powers your appliances.

    The main difference between UPS and inverter battery is that an inverter battery converts DC power to AC power while a UPS provides backup power to connected devices after a power outage. Inverter batteries are also designed to provide backup power for longer periods while UPS are designed for short-term power backup.

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