Solar batteries
Solar batteries for maximum energy independence. Store your excess solar energy and use it whenever you need it most.
All about Solar batteries
LFP Solar Batteries for Residential and Commercial Self-Consumption
Solar batteries allow you to store the energy generated by your photovoltaic panels during the day so you can use it at night or during a power outage. With a properly sized solar battery, you can increase your self-consumption rate to as much as 80% while minimizing your dependence on the electricity grid.
Bexie solar batteries use LFP (Lithium Iron Phosphate) technology—the safest, longest-lasting, and most efficient battery chemistry available. They offer up to 8,000 charge/discharge cycles, equivalent to more than 15 years of operation under normal service conditions, and all models are fully certified to applicable technical standards.
Benefits of LFP Solar Batteries
- Up to 8,000 life cycles — equivalent to more than 15 years of operation under normal service conditions. Approximately twice the lifespan of NMC batteries.
- Maximum safety — LFP chemistry is one of the most stable battery technologies on the market, with no risk of spontaneous combustion or thermal runaway.
- High efficiency — charge and discharge efficiency exceeding 95%, ensuring minimal energy losses throughout the storage cycle.
- 90% Depth of Discharge (DoD) — utilize virtually the entire nominal capacity of the battery.
- Integrated BMS — built-in Battery Management System protects against overcharging, deep discharge, and extreme temperatures.
- Scalable capacity — easily expand your storage system by adding additional battery modules as your energy needs grow.
Bexie Solar Battery Solutions
Bexie offers a wide range of solar battery solutions to suit every type of installation:
Wall-Mounted Solar Batteries
Compact wall-mounted systems with capacities ranging from 5 kWh to 20 kWh. Ideal for residential homes.
Rack-Mounted Solar Batteries
Modular 19-inch rack-mounted battery systems with capacities from 10 kWh to over 100 kWh. Designed for commercial and industrial installations.
All-in-One Energy Storage Systems
Integrated hybrid inverter and battery in a single unit for faster installation and reduced space requirements.
Industrial BESS
Large-scale Battery Energy Storage Systems (BESS) designed for industrial facilities with high energy demand.
What Size Solar Battery Do I Need?
The ideal battery capacity depends on your nighttime electricity consumption and the size of your solar PV system. As a general guideline:
- Small home (5–8 kWh nighttime consumption): 5–10 kWh battery
- Medium-sized home (8–15 kWh nighttime consumption): 10–20 kWh battery
- Business or commercial facility: battery sizing should be based on your specific consumption profile.
See the IDAE recommendations on energy storage or request a free battery sizing assessment, and we'll recommend the ideal solar battery solution for your installation. You can also learn more on our backup power page.
Frequently asked questions about Solar batteries
How long does an LFP solar battery last?
Bexie LFP solar batteries offer a lifespan of up to 8,000 charge and discharge cycles, depending on the model, equivalent to more than 15 years of operation under normal service conditions. This is approximately twice the lifespan of NMC batteries and closely matches the expected service life of modern solar panels, making LFP technology an ideal long-term solution for energy storage.
What is the difference between LFP and NMC solar batteries?
LFP (Lithium Iron Phosphate) solar batteries are safer, longer-lasting, and more thermally stable than NMC (Nickel Manganese Cobalt) batteries. LFP technology offers up to twice the cycle life of NMC while eliminating the risk of spontaneous combustion and thermal runaway, making it one of the safest battery chemistries available.nnNMC batteries have a higher energy density, allowing them to store more energy in a smaller and lighter package. However, they have a shorter lifespan, lower thermal stability, and generally require more stringent safety measures.nnFor residential and commercial solar energy storage, LFP batteries are widely considered the preferred choice due to their superior durability, safety, and long-term value.
Can a solar battery be added to an existing solar system?
Yes. If you already have solar panels with a standard grid-tied inverter, you can add a solar battery in one of two ways:nnReplace the existing inverter with a compatible hybrid inverter, allowing the battery to connect directly to the new system.nUse an AC-coupled battery system, which integrates the battery without replacing your existing grid-tied inverter.nnIf your installation already includes a hybrid inverter, the battery can usually be connected directly to the existing inverter, making the upgrade straightforward.nnRequest a free system assessment, and we'll recommend the most suitable battery solution for your existing solar installation.
