SKU : BESS 6551A
6.5 KW Inverter + 100Ah Lithium Battery
Categories : Ready to Install ,
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Ready-to-Use Energy Storage System
For Homes Looking to Reduce Electricity Bills and Have Backup Power, with Support for Higher Power Demands
INFOSAT BESS 6551A is a residential energy storage system consisting of a 6.5 kW Off-Grid Hybrid Inverter, model MAX-6548, and a 51.2V 100Ah lithium battery, model EC-R51.2-100 (Stand). The battery has a nominal energy capacity of approximately 5.12 kWh. This system is suitable for users who want to utilize solar energy at home, reduce electricity purchases from the utility grid, and store energy for use at night or during power outages.
The system manages energy from power sources supported by the inverter to supply household appliances and charge the battery according to its operating modes. When sufficient energy has been stored, users can draw power from the battery when sunlight is unavailable, helping maximize the benefits of solar energy.
With a rated inverter output of 6.5 kW, this system is suitable for distributing power among various household appliances. According to the product specifications, it supports air conditioners rated up to 30,000 BTU. However, the BTU rating does not indicate the actual electrical power consumption. Therefore, the air conditioner's power requirements, compressor startup current, and combined power demand of appliances operating simultaneously must be checked before use.
The equipment is mounted on a stand with wheels for organized placement and convenient mobility. The set includes electrical circuit management components and accessories specified in the product listing. It is suitable for users who want an energy storage system with the main components assembled together, without having to source every major component separately. However, site readiness and installation requirements must be assessed before actual use.
Key Features of INFOSAT BESS 6551A
How Can Users Save on Electricity Bills?
When connected to solar panels, the system can use solar energy to power household appliances and store excess energy in the battery, subject to the system's capabilities. The stored energy can then be used in the evening, at night, or during periods without sunlight, helping reduce the amount of electricity purchased from the utility grid.
For example, during the day, solar panels generate electricity to power household appliances. If excess energy is available and the system can charge the battery, that energy can be stored for later use, such as powering lights, fans, televisions, refrigerators, or compatible air conditioners at night.
For users who want to manage electricity costs based on time-of-use rates, it is advisable to check whether the inverter supports the required operating modes and settings, as well as review the home's electricity tariff structure. Charging the battery from grid electricity for later use does not always result in savings because energy is lost during charging and discharging.
Although the battery has a nominal energy capacity of 5.12 kWh, the inverter's rated power of 6.5 kW does not mean it can deliver maximum power for several hours continuously. Backup runtime depends on the actual usable energy, the power consumption of connected appliances, and system losses.
Example of Electricity Bill Savings
The battery has a nominal energy capacity of approximately:
51.2V × 100Ah = 5,120Wh or 5.12 kWh
If the system can effectively replace approximately 4 kWh of grid electricity per day, assuming an average electricity rate of THB 4.50 per kWh:
Estimated savings: THB 18 per day
Estimated savings: THB 540 per month, based on 30 days
Estimated savings: THB 6,570 per year, based on 365 days
These figures are illustrative examples to explain the calculation method and are not a guarantee of actual savings. Actual results vary depending on usable battery capacity, system losses, solar panel output, the number of days with sufficient sunlight, and each household's usage patterns.
Benefits for Users
Reduce Electricity Bills Over Time
Increase household solar energy consumption and reduce electricity purchases from the utility grid when sufficient energy can be generated and stored.
Backup Power When Needed
Use battery energy to power selected appliances during a power outage, within the system's supported power output and available backup energy.
Make Better Use of Solar Energy
Use energy generated during the day to power household appliances and store available excess energy for periods without sunlight.
Support Higher Power Demands
The inverter has a rated output of 6.5 kW, allowing users to plan for various household appliances. The combined power demand and system limitations must be assessed before use.
Integrated Equipment Setup
The main components and accessories are mounted on a frame with wheels, helping keep the equipment organized and making inspection and maintenance more convenient.
Warranty Coverage for Main Components
The inverter comes with a 2-year warranty, while the battery comes with a 7-year warranty, subject to the company's terms and conditions.
Components Included in the Set
Note: Solar panels and installation services are not included in the price.
Suitable Applications
Frequently Asked Questions (FAQ)
1. What is INFOSAT BESS 6551A?
INFOSAT BESS 6551A is a ready-to-use energy storage system consisting of a 6.5 kW Off-Grid Hybrid Inverter, model MAX-6548, and a 51.2V 100Ah lithium battery, model EC-R51.2-100 (Stand), with a nominal battery energy capacity of approximately 5.12 kWh. It is designed to utilize solar energy and provide backup power for compatible appliances.
2. Can BESS 6551A really help reduce electricity bills?
Yes. The system can help reduce electricity bills when solar energy replaces electricity purchased from the utility grid, such as when stored battery energy is used in the evening or at night. Actual savings depend on solar panel capacity, sunlight availability, electricity consumption habits, usable battery capacity, and the household's electricity tariff.
3. What is the battery capacity?
The battery has a nominal voltage of 51.2V and a capacity of 100Ah, providing a nominal energy capacity of approximately 5.12 kWh. The actual usable energy may be lower depending on system settings and battery limitations.
4. What is the inverter's power rating?
The MAX-6548 inverter has a rated power output of 6.5 kW, or 6,500W, according to the product specifications. However, continuous power limits, startup power requirements, and battery limitations should be checked before connecting high-power appliances.
5. Can the system operate without solar panels?
Operation without solar panels depends on the inverter's ability to accept other power sources and its supported battery charging methods. Check the MAX-6548 manual or consult the supplier before use. If the battery is charged solely from grid electricity at the same electricity rate, the system may not provide significant electricity bill savings.
6. Are solar panels included in the set?
Solar panels are not listed among the included components in the product image. The product note also states that solar panels and installation services are excluded. Buyers must purchase solar panels separately and select an appropriate configuration based on the inverter's voltage, current, and input power specifications.
7. What appliances can the system power?
The system can be planned for use with general household appliances such as lights, fans, televisions, routers, computers, refrigerators, and other equipment with compatible power requirements. The combined power demand of all appliances operating simultaneously must be checked to ensure it does not exceed the inverter and battery limits.
8. Can the system be used with an air conditioner?
According to the product specifications, the system supports air conditioners rated up to 30,000 BTU. However, the actual electrical power consumption, compressor startup current, compressor type, and other simultaneously connected loads must be checked before use. Air conditioners with the same BTU rating may have different power requirements.
9. How long can the system provide backup power during an outage?
Runtime depends on the actual usable energy supplied by the battery and the power consumption of connected appliances. Assuming the system has 4 kWh of usable energy, the approximate runtimes would be:
200W load: approximately 20 hours
500W load: approximately 8 hours
1,000W load: approximately 4 hours
2,000W load: approximately 2 hours
These are theoretical estimates based on 4 kWh of energy and do not account for additional system losses. Actual runtime may be shorter depending on inverter efficiency, battery condition, and load characteristics.
10. Can the system power every circuit in the house during a power outage?
Do not assume that the system can provide backup power to the entire house without assessing the electrical load. It is recommended to prioritize essential circuits, such as lighting, refrigerators, routers, and device charging points, and calculate the combined load to ensure compatibility with the system. Backup circuit connections should be carried out by a technician with appropriate electrical expertise.
11. What are the advantages of a lithium battery?
A lithium battery suitable for energy storage can store energy for later use. Its service life and number of charge cycles depend on the battery chemistry, operating temperature, charging and discharging conditions, and maintenance. For model EC-R51.2-100, consult the manufacturer's documentation to confirm the battery chemistry and model-specific operating details.
12. Can the system power appliances while charging the battery at the same time?
Hybrid inverters are designed to manage energy from supported power sources. However, whether the MAX-6548 can supply loads and charge the battery simultaneously depends on the inverter's operating modes, settings, and specifications. Consult the product manual to confirm supported configurations and limitations.
13. Does the system require professional installation?
Installation by a technician experienced in electrical and solar energy systems is recommended. The technician should verify cable sizing, circuit breakers, grounding, backup circuit separation, and solar panel connections to ensure proper and safe operation.
14. How should the system be maintained?
Periodically inspect terminals, cables, circuit breakers, ventilation, and battery status. Install the system in a dry, well-ventilated area and avoid water, high humidity, direct sunlight, and excessive heat buildup. Always follow the manufacturer's maintenance and operating instructions.
15. What is the warranty period?
MAX-6548 inverter: 2-year warranty
EC-R51.2-100 battery: 7-year warranty
All warranty coverage is subject to the company's terms and conditions.
