How To Choose A Battery for Inverter

One of the main elements of the power source, on which the efficiency and duration of the operation depend, the battery is a battery. For INverter-type Inverter, designed to back up the power supply of a private house, cottage, cottage, or seasonal residence, it will be necessary to pre-calculate the batteries to provide sufficient current for the power of all consumers, including electric motors (vacuum cleaner, washing machine, water pump, etc.).


Buying Guide: Batter For Inverter

Key points

The battery is selected based on the features of the inverter itself and the operating conditions of the source of the backup (autonomous) power supply. For example, if the house has a lot of electrical-engine equipment used in the Inverter, the power source should give out a voltage of a sinusoidal form with an input voltage of 24 B for 1-3 kW or 48 B for above 3 kW. Inverter at 12 Bs is appropriate to install when consuming up to 1 kW.

Power is also pre-calculated (if the inverter and AKB are selected separately for the new system, rather than requiring the connection of batteries to the already operated Inverter). Peak power is the total power of all electrical appliances and equipment connected at the same time. Based on the power of the inverter, choose the right batteries For the Inverter.

When buying batteries, the first thing to do with the reservation system is the mode of operation. If the equipment is needed for the house of permanent residence, it will require a large total capacity of batteries than for a country cottage, where tenants need an accumulated supply of energy for 2 days or more. In the first case, you need to install more high-capacity AKB.


What factors to consider when choosing a battery for Inverter?

choosing a battery for Inverter

When selecting batteries for a power source (inverter), the following factors are taken into account:

  • Type of AKB. For inverters, it is recommended to choose non-service batteries AGM or GEL (helium batteries). The first is suitable for high load support and withstand higher discharge currents compared to GEL-type AKB. An inverter with AGM batteries is optimal. Helium products work perfectly with wind generators, solar panels, and other alternative energy sources in cyclical mode. Some bulk AKB, although it can be used in the reservation system, it is not recommended because of the explosiveness – in the process of work, hydrogen is released. Automotive batteries are designed for large currents, issued for a short time, and when working in the backup power supply after a few deep discharges, up to 20% can no longer be used in the future.
  • Work mode. For a fully autonomous power supply of a private house, cottage, office, industrial object on solar panels, it is better to choose still traction shell batteries and a backup mode of operation – AGM or helium.
  • Capacitance. With a small number of powerful electricity, consumers will be enough a few AKB capacity of 200 Ah – about 2 pieces for autonomous heating, 4 pieces – for a cottage with autonomous heating, water supply, refrigerator, TV, and other equipment, and up to 8 pieces for a full backup electricity supply to a cottage or house, where peak capacity can reach up to 30,000 VA.
  • Temperature. At low ambient temperature, the battery’s energy intensity is significantly reduced, condensation and subsequent corrosion. Therefore, regardless of the temperature regime specified by the manufacturer, it is necessary to install batteries in heated rooms.

The average lifespan of AGM batteries in autonomous power supply mode using autonomous power based on solar panels is up to 3 yThe charge-discharge cycle is carried out daily. When back-up – about 10 years, because they work in a buffer mode with a 3-stage charge. It should not be forgotten that a significant reduction in the lifespan of sealed non-serviceD AKB contributes to a deep discharge of up to 20%. The optimal cycle is up to 30-50% and a charge of up to 80% in the backup mode of the power source.

Summing up, it can be noted that for the cottage under normal conditions to provide a backup power supply will suit from 2 to 8 unserved AGM or GEL (if this option is chosen) with a capacity of 200 AH. Installation is possible anywhere in a private house, office – in a boiler room, under the interstate’s span, in a household room, etc.

When using a backup power supply on the invertor – correctly calculate, pick up and connect the batteries in the system, and comply with the rules of battery operation for the Inverter.

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