1.Warranty Period

Under normal usage conditions, we typically offer a warranty period of ten years. Please see the attached document for our specific requirements of warranty

2.Problems with fire

Regarding the problem of fire, our batteries all have BMS of temperature, current, volt. Our batteries have a high temperature protection BMS, the battery temperature is around 75℃, the bms will automatically stop working, and wait for the temperature to fall back to around 60 before it can work normally. So the battery will not reach ignition point, as long as it is used correctly there will be no problem.

3.Storage Problems

You can store the battery inventory without using it for 3 to 5 years; however, you need to regularly check the battery every 6 months. If you have the battery stayed 12 months into your warehouse , you will need to charge the battery 1 time in this year, and it won't bring any problem. Typically, our customers sell out the batteries within 1 year. The battery SOC (State of Charge) is around 60% when shipped out because charging a high SOC during bulk shipping poses security risks. During storage, it's advisable to maintain the battery SOC between 50% and 80%. Regular checks every 6 months are necessary, and if the SOC falls below 30%, recharge it to 50%-80%. Otherwise, it's unnecessary.

4.Can off-grid inverter work without battery?

Yes, it’s possible to use a solar panel and inverter without a battery. In this setup, the solar panel converts sunlight into DC electricity, which the inverter then converts into AC electricity for immediate use or to feed into the grid. However, without a battery, you can’t store excess electricity. This means that when sunlight is insufficient or absent, the system won’t provide power, and direct use of the system may lead to power interruptions if sunlight fluctuates.

5.How long do off-grid batteries last?

Typically, Most solar batteries on the market today last between 5 and 15 years. Eco-wrorthy off-grid batteries support up to 20 years of design life and over 6,000 times of cycle life. Treating the battery right with proper care and maintenance will ensure a battery will reach its optimal lifespan or even further.

6.How many batteries do I need for off-grid solar?

Before you can determine how many solar batteries are required to power your home, you need to consider a few key factors: Time (hours): The number of hours you plan to rely on stored energy per day. Electricity demand (kW): The total power consumption of all the appliances and systems you intend to run during those hours. Battery capacity (kWh): Typically, a standard solar battery has a capacity of about 10 kilowatt-hours (kWh). With these figures in hand, calculate the total kilowatt-hour (kWh) capacity needed by multiplying the electricity demand of your appliances by the hours they’ll be in use. This will give you the required storage capacity. Then, assess how many batteries are needed to meet this requirement based on their usable capacity.

7.What is the best battery for off-grid solar system?

The best batteries for off-grid solar systems are lithium-ion and LiFePO4. Both outperform other types in off-grid applications, offering faster charging, superior performance, longer lifespan, zero maintenance, higher safety, and lower environmental impact.