FAQ

For a normal home running a refrigerator, TV, lights, Wi-Fi, and basic appliances, 15kWh is a good place to start. Want air conditioning, pumps, electric cooking, or longer outage backup? Look at 20kWh or more. Send us your appliance list before ordering. We can tell you whether 15kWh is enough or you are paying for capacity you do not need.

5kWh is better for essential backup, not full home use. It works when you only need a few important loads for a shorter period. For regular overnight use, most buyers should compare 10kWh or 15kWh first.

Choose 10kWh for lighter backup and basic overnight loads. Choose 20kWh when you want longer backup, more appliances, or room for future use. Not sure? Send us your electricity use or appliance list. This is easier than guessing from battery capacity.

For most home systems, a 51.2V low-voltage battery is the simpler choice when the inverter supports it. High-voltage systems make more sense for larger systems built around a compatible high-voltage inverter. Always check inverter compatibility before choosing the voltage platform.

Wall-mounted works well when space is tight. Rack-mounted is better for larger systems and organized expansion. Stackable is a good choice when you want to add capacity later without rebuilding the whole battery setup.

Battery voltage alone does not tell you that. We check the inverter voltage range, charge and discharge current, CAN or RS485 communication, battery protocol, and firmware. Send us the exact inverter brand and model before ordering. We would rather check it first than have you buy the wrong battery.

Many buyers do not. A good existing hybrid or battery-ready inverter can often stay in the system when the battery voltage and communication match. We check the inverter first before recommending a replacement.

Usually yes. A hybrid or battery-ready inverter makes the job easier. Solar-only inverters may need an additional battery inverter or a different system layout. Send us the inverter model and we can tell you the simplest route.

No. Many 48V-class inverters work with 51.2V LiFePO4 batteries, but the actual voltage range, current limits, and communication still need to match. Never buy only because both products say "48V."

Yes, on systems designed for expansion. This is worth planning from day one. The inverter limit, battery model, BMS, and maximum supported quantity all matter. Tell us your future capacity goal before the first order and we can leave room for expansion.

The battery is only part of the cost. Capacity, inverter or PCS, cabinet, cables, accessories, shipping, installation, and project requirements all change the final price. Send us the capacity you want, your inverter model, quantity, and destination for a useful quote.

Capacity alone does not tell the whole story. Cell quality, BMS, current capability, enclosure, communication, cycle life, certification, warranty, and installation format all affect the price. Compare the full specification, not only $/kWh.

At minimum, check exactly what you are paying for. Battery, rack or cabinet, cables, connectors, inverter or PCS, accessories, shipping, and installation should be clearly listed. A low battery price can become expensive once the missing parts are added.

Yes. Capacity, voltage, current, communication, dimensions, weight, installation method, protection rating, and expansion limit should all be clear before payment.

Check the certification required in your country or project first. Do not accept “we have certificates” as the answer. Ask whether the exact battery model you are buying is covered.

Use the lead time written in the quotation. Model, quantity, customization, and production schedule all change delivery time. Avoid relying on a general website promise.

Many countries can receive lithium batteries, especially by sea freight. The exact route depends on destination, product, quantity, and current shipping rules. Send us the country and order quantity first.

For a small commercial site with lighter loads or shorter backup, 50kWh can be a reasonable starting point. For longer backup, larger three-phase loads, or higher daily energy use, 100kWh or more is usually the better direction. The final decision should come from the real load profile, not the building size.

We start with peak power and the normal running load. Then we check operating hours, required backup time, site voltage, solar capacity, and whether the goal is backup, peak shaving, solar storage, or all three. This is much more reliable than choosing “100kWh” first and trying to make the project fit afterward.

Technically possible, but not always the smartest investment. Most factories get better value by separating critical production loads, controls, IT, lighting, and essential equipment from loads that do not need backup.

Yes, when the site has clear demand peaks. The load profile tells us whether peak shaving is worth doing and how much power the system actually needs.

Start with the inverter screen and battery alarms. Then check communication, charge settings, SOC, solar or grid input, and whether the BMS has entered protection. Send us photos before changing advanced settings.

Check the CAN or RS485 cable, correct communication port, inverter battery setting, and protocol. Send us both model numbers. Communication problems are much easier to solve when we know the exact combination.

Record the alarm first. Take a photo of the battery screen and inverter screen, then note what the system was doing when the alarm appeared. Repeatedly resetting the system can remove useful fault information.

Yes. Send the battery model, inverter model, wiring photos, communication connection, and current settings. We can guide the setup from the actual system instead of guessing.