Frequently Asked Questions

About FSolar
FSolar was founded in 2020 in Abu Dhabi, UAE by on-site solar engineers with 18+ years of field experience since 2008.

About FSolar
FSolar was founded by practising solar engineers with 18+ years of on-site experience. Our founders installed systems before selling them.

About FSolar
Yes. FSolar is proudly UAE-founded and headquartered in Abu Dhabi — the fastest-growing smart solar brand in the UAE, now expanding to Oman and global markets.

About FSolar
Visit our Abu Dhabi showroom (UAE) or Muscat City showroom (Oman) via Arab Sun Solutions SPC. Shop 24/7 at fsolarenergy.com.

Products
• Hybrid Solar Inverters — manage solar, grid, and battery simultaneously.
• LiFePO4 Lithium Batteries — safest, longest-lasting solar storage.

Both carry a 5-year warranty and 15+ year lifespan.

Products
A Hybrid Solar Inverter draws from solar first, stores surplus in battery, and uses the grid only when needed — maximising savings and backup during power cuts.

Products
LiFePO4 batteries are thermally stable (no fire risk), deliver 4,000-6,000+ cycles, and perform reliably in UAE extreme heat. FSolar exclusively stocks LiFePO4.

Warranty
FSolar warranty varies by product type:

• IP65 Hybrid Inverters — 5-year warranty
• IP20 / IP21 Inverters — 1-year warranty
• LiFePO4 Lithium Batteries — 3-year or 5-year warranty (varies by model)
• Solar Panels — 5-year product warranty + 30-year production warranty

All claims are handled by engineers with technical product knowledge — not just a call centre.

Warranty
FSolar products are built to last:

• Hybrid Inverters (IP65) — 15+ year lifespan, rated for outdoor UAE conditions
• LiFePO4 Batteries — 4,000–6,000+ charge cycles (10–15 year operational life)
• Solar Panels — 30-year production warranty reflects the true lifespan of quality panels

All products are tested for continuous operation in GCC climatic extremes.

Payments
Yes. FSolar launched the UAE's first dedicated solar ecommerce platform in 2020 at fsolarenergy.com with UAE-wide delivery.

Payments
Yes — FSolar is the first solar company in the UAE to offer Tabby and Tamara interest-free installments at fsolarenergy.com.

Payments
At fsolarenergy.com (UAE): Apple Pay, Google Pay, Cash on Delivery, Tabby and Tamara installments. For Oman, contact Muscat showroom.

Installation
Our founders have 18+ years of on-site solar installation experience. We advise on system design and connect you with qualified partners. Contact us.

Installation
Fill in our contact form for a tailored recommendation, or visit our Abu Dhabi showroom for a free in-person consultation.

Oman
Yes. FSolar expanded to Oman in 2025 through Arab Sun Solutions SPC with a dedicated showroom in Muscat City.

Oman
FSolar operates in UAE (Abu Dhabi + fsolarenergy.com) and Oman (Muscat, Arab Sun Solutions SPC). Expanding to Europe, GCC, Africa, India, and Sri Lanka.

Inverters
FSolar offers a full Atlantic Series range — the compact Atlantic F2 (2000VA 12V), Atlantic F4 (4000VA 24V), Atlantic F6 (6000VA 48V), Atlantic F6.5 (6500VA 48V), the Aura Series (6.2KW 48V), plus the 12KVA 48V and 14000VA 3-phase for large facilities. All available online at fsolarenergy.com.

Inverters
Both are 48V hybrid inverters with MPPT and pure sine wave output. The Atlantic F6.5 is the newer model — it features inbuilt smart MPPT and built-in WiFi monitoring so you can track solar production and battery status from your phone. The Atlantic F6 includes an inbuilt parallel kit for stacking multiple units to increase total system capacity.

Inverters
Yes. All FSolar Atlantic Series inverters output pure sine wave AC power, which is required for modern inverter air conditioners and sensitive electronics. The Atlantic F6 and F6.5 (6–6.5kW) comfortably handle a 2-ton AC unit alongside standard household loads. For multi-AC or commercial loads, the 12KVA or 14000VA 3-phase models are recommended.

Inverters
Yes — all FSolar Atlantic and Aura Series inverters are fully compatible with LiFePO4 (Lithium Iron Phosphate) batteries, including FSolar's own branded battery packs. LiFePO4 is the safest and longest-lasting battery chemistry available for solar storage and is the only battery type FSolar recommends for off-grid systems in the UAE.

Inverters
For farms, desert camps, and remote properties without grid access, the FSolar Atlantic F6 (6000VA 48V) or Atlantic F4 (4000VA 24V) are ideal. They support solar panels, LiFePO4 batteries, and generator input simultaneously — keeping loads running 24/7. For very large farms or industrial sites, the 12KVA or 14000VA 3-phase models are recommended.

Inverters
Yes. The FSolar Atlantic F6, Atlantic F6.5, and Aura Series include inbuilt parallel kits, allowing you to stack multiple units and multiply total capacity without complex rewiring. This is ideal for large villas, commercial buildings, or industrial sites across Abu Dhabi and the wider UAE.

Inverters
MPPT (Maximum Power Point Tracking) is a smart charging algorithm built into every FSolar Atlantic Series inverter. It continuously adjusts to extract the maximum available power from your solar panels — especially important in UAE conditions where heat, dust, and partial shading affect output. Because MPPT is built in, no separate solar charge controller is required.

Inverters
Yes. The FSolar 14000VA 48V 3-phase hybrid inverter is purpose-built for commercial and industrial applications requiring 3-phase AC power — including large facilities, workshops, and farms. It includes built-in MPPT solar charge control, WiFi monitoring, and supports battery and generator backup for uninterrupted operation across Abu Dhabi and the UAE.

Inverters
Yes. FSolar hybrid inverters accept generator input as a secondary AC source alongside solar and battery. The inverter automatically prioritises solar power, draws from the battery bank next, and only switches to generator backup when both solar production and battery capacity are insufficient — ensuring your loads run continuously even during extended cloudy periods.

Inverters
FSolar inverters with built-in WiFi — including the Atlantic F6.5 and the 14000VA 3-phase model — connect to a mobile monitoring app for real-time data on solar production, battery state of charge, AC load output, and historical energy reports. Non-WiFi models include an LCD display for on-site system status monitoring.

Batteries
The FSolar Alpha Series V2.0 is a residential energy storage system built on Lithium Iron Phosphate (LiFePO4) cell technology. It includes a built-in Battery Management System (BMS), smart LED SOC display, Bluetooth and WiFi monitoring, and multiple communication ports (CAN, RS485, RS232) for seamless inverter integration. Available in 8KWH, 16KWH, and 32KWH capacities.

Batteries
The FSolar Alpha Series V2.0 comes in four models: 8KWH 314AH 25.6V (ideal for 24V systems), 8KWH 155AH 51.2V, 16KWH 314AH 51.2V, and 32KWH 628AH 51.2V (for 48V systems). The 51.2V models are the most popular for modern hybrid solar systems in the UAE.

Batteries
LiFePO4 batteries offer higher energy density, significantly longer cycle life, much lighter weight, and superior safety compared to lead-acid. They maintain stable performance in the UAE's high ambient temperatures, lose minimal capacity over thousands of charge cycles, and the built-in BMS provides active protection against overcharge, over-discharge, and overheating — making them ideal for UAE solar storage.

Batteries
A BMS (Battery Management System) is the intelligent controller inside the battery that monitors and protects every cell. The FSolar Alpha Series includes a fully integrated BMS with: multi-channel cell voltage detection (≤10mV accuracy), charging and discharging current monitoring (≤2% accuracy), multi-channel temperature sensing, cell balancing, SOC estimation, and automatic sleep/wake management — all factory-calibrated.

Batteries
The FSolar Alpha Series BMS provides comprehensive protection: overcharge protection, over-discharge protection, overcurrent protection (both charge and discharge), high and low temperature protection, and short circuit protection. All alarm and protection thresholds are pre-configured and can also be adjusted via upper computer software.

Batteries
The FSolar Alpha Series supports the widest range of inverter protocols in its class: Growatt, Goodwe, Solis, Deye, MPP Solar, Voltronic, Pylon, SMA, Victron, Sofar, Studer, Schneider, SRNE, Sorotec, and TBB — via CAN or RS485. This makes it compatible with virtually any hybrid or off-grid solar inverter available in the UAE, including all FSolar Atlantic Series inverters.

Batteries
Yes. The FSolar Alpha Series V2.0 supports both Bluetooth and WiFi connectivity. Via the companion app, you can monitor real-time battery voltage, current, temperature, SOC (State of Charge), and SOH (State of Health). To add via WiFi: hold the reset button for 10–13 seconds until the running lights activate, then release and wait 8 seconds for the device to appear in the app's "Add Device" section.

Batteries
The FSolar Alpha Series has a 14-LED display panel on the front: 12 LEDs show SOC in steps from 8% to 100%, plus a Run indicator (green = discharging, blue = charging) and an Alarm LED. During discharge the lit LEDs are green; during charging they are blue with a running-light animation toward the highest unlit LED. You can also read precise SOC% via Bluetooth or WiFi app.

Batteries
The FSolar Alpha Series V2.0 includes five communication interfaces: CAN (500K baud, RJ45) for inverter communication, RS485 (9600bps, RJ45) for independent or parallel inverter communication, a Parallel RS485 port (RJ45) for multi-battery stacking, RS232 (9600bps, RJ11) for BMS software configuration, and Bluetooth + WiFi for mobile app monitoring.

Batteries
The 25.6V model (8KWH 314AH) is designed for 24V solar systems — typically smaller off-grid setups. The 51.2V models (8KWH, 16KWH, 32KWH) are designed for 48V solar systems, which are the standard for all FSolar Atlantic Series hybrid inverters and most modern residential and commercial solar systems in the UAE. If you have an FSolar Atlantic Series inverter, always choose the 51.2V model.

Batteries
For a typical UAE villa or apartment using an FSolar hybrid inverter, the 16KWH 314AH 51.2V model covers 1–2 days of overnight usage per charge cycle. For larger homes or properties with air conditioning running off-grid, the 32KWH 628AH 51.2V provides extended autonomy. Multiple units can also be stacked in parallel to reach any capacity target.

Batteries
The FSolar Alpha Series 32KWH (628AH 51.2V) provides substantial off-grid capacity — enough to power a moderately sized UAE home through the night and into the next day when combined with adequate solar panel input. For complete off-grid independence in the UAE's climate (with air conditioning loads), pairing multiple Alpha Series units with a high-capacity FSolar Atlantic inverter and a generator backup is recommended for 24/7 reliability.

Batteries
The FSolar Alpha Series battery enters sleep (low-power) mode automatically under these conditions: 24 hours of standby with no charging, discharging, or communication; undervoltage protection that remains unresolved for 30 seconds; or manual reset by pressing the reset button for 3–6 seconds then releasing. Forced shutdown can also be initiated via upper computer software. Ensure no external voltage is connected before entering sleep mode.

Batteries
The FSolar Alpha Series wakes from sleep automatically when: a charger is connected with output voltage above 48V, the reset button is held for 3–6 seconds and released, or activation via the RS232 interface. Note: if the battery entered sleep due to undervoltage, it will automatically wake every 4 hours to check if charging is possible — after 10 unsuccessful wake attempts, automatic wake-up stops.

Warranty
The FSolar Alpha Series V2.0 LiFePO4 battery carries a 5-year warranty from the date of purchase. During the warranty period, malfunctions occurring under normal use (as determined by FSolar's official staff) are repaired free of charge. FSolar's after-sales support team is based in Abu Dhabi, UAE, with coverage across the UAE and Oman.

Warranty
The following situations result in paid repairs rather than warranty coverage: damage from improper use or unauthorised self-repair; damage from transportation, mishandling, or dropping after purchase; damage from unavoidable external factors; and damage from water ingress or liquid exposure due to improper use. Do not disassemble the battery or replace cells without authorisation.

Warranty
LiFePO4 batteries are the longest-lasting chemistry available for solar storage. The FSolar Alpha Series is covered by a 5-year product warranty. LiFePO4 cells retain the vast majority of their capacity over thousands of charge cycles — far outlasting traditional lead-acid batteries, which typically degrade significantly within 2–3 years. For maximum lifespan: avoid deep discharge below 30%, charge in a cool ventilated environment, and use a compatible inverter.

Install
Yes. The FSolar Alpha Series V2.0 is designed for parallel connection. Each unit has a dedicated Parallel RS485 port for inter-battery communication. A DIP switch on the BMS sets a unique address for each unit (addresses 0–15). Once communication cables are connected, the master battery performs automatic parallel coding on startup — no complex manual configuration required.

Install
Up to 16 FSolar Alpha Series units can be connected in parallel using the built-in DIP switch addressing system (addresses 0–15). The master unit (address 0 by default, or the lowest-address unit) aggregates data from all slave units for unified inverter communication. This allows you to scale from 8KWH all the way to 512KWH of total storage using the 32KWH model.

Install
The maximum charging voltages are: 25.6V models → maximum 30V (24V systems); 51.2V models → maximum 60V (48V systems). Never exceed these limits. Your FSolar inverter or charge controller should be configured to these voltage limits. Overcharging beyond these values may damage the battery and will void the warranty. The BMS provides overcharge protection, but correctly setting the inverter voltage is essential.

Install
No — never use a lead-acid charger or lead-acid inverter with LiFePO4 batteries. The charging profile of LiFePO4 is fundamentally different from lead-acid. Using an incompatible charger can damage the battery, break down the BMS protection system, cause short circuits, and create safety risks. Always use an inverter or charger specifically compatible with LiFePO4, such as all FSolar Atlantic Series hybrid inverters.

Install
For long-term storage: fully charge the battery before storing. If storing for more than 2–3 months, or if the charge level drops below 30%, recharge it. Store in a dry, well-ventilated, cool environment — avoid humidity and high temperatures. Do not store near heat sources, fire, or heating equipment. Batteries that remain in a discharged state for extended periods may suffer permanent capacity loss.

Install
Use a CAT6/RJ45 cable to connect the RS485 port on the FSolar Alpha Series battery directly to the BMS communication port on the FSolar 14KW 3-phase inverter. Then set the inverter's BMS settings as follows: Battery Type = LIB, BMS Communication = RS485, BMS Port/Protocol = PylonTech. Save settings before powering on.

Install
Set the following in the FSolar 14KW 3-phase inverter's BMS configuration:
• Battery Type: LIB
• BMS Communication: RS485
• BMS Port / Protocol: PylonTech
These three settings must all be applied correctly for the inverter and battery to communicate. An incorrectly set protocol will result in no BMS data being received by the inverter.

Install
You need a standard CAT6 cable with RJ45 connectors (also known as an Ethernet cable) to connect the battery's RS485 communication port to the inverter's BMS communication port. This is the same cable used for networking equipment and is widely available. FSolar recommends using a screened/shielded CAT6 cable in outdoor or industrial installations to minimise electrical interference.

Install
In a multi-battery setup: Battery 1 connects to the inverter's BMS port via its RS485 port. Each additional battery is then linked in a daisy-chain: connect the 485-2 port of the new battery to the 485-1 port of the previous battery. The last battery in the chain has no outgoing connection. Each battery must also have a unique DIP switch address set before powering on.

Install
Set the DIP switch (labeled ADS) on each battery as follows using the UP position for the numbered switch:
• Battery 1: switch 1 UP, rest DOWN
• Battery 2: switch 2 UP, rest DOWN
• Battery 3: switches 1 + 2 UP, rest DOWN
• Battery 4: switch 3 UP, rest DOWN
• Battery 5: switches 1 + 3 UP, rest DOWN
• Battery 6: switches 2 + 3 UP, rest DOWN
Always confirm the physical switch numbering and UP direction printed on the battery before setting.

Install
Connect additional batteries in a daisy-chain sequence using the dedicated 485-1 and 485-2 ports:
• Battery 2 485-2 → Battery 1 485-1
• Battery 3 485-2 → Battery 2 485-1
• Battery 4 485-2 → Battery 3 485-1
Continue this pattern for each additional battery. The final battery in the chain has no outgoing 485 connection. Battery 1 remains connected to the inverter BMS port throughout.

Install
Always follow this power-up order: 1. Power ON the batteries first (all units) — wait until the LED indicators show stable SOC. 2. Power ON the inverter after the batteries are active. Powering the inverter before the batteries can cause BMS communication errors or prevent the inverter from detecting the battery bank. For shutdown, reverse the order: inverter off first, then batteries.

Install
The DIP switch is located on the BMS communication panel of the FSolar Alpha Series battery and is labeled ADS. It has multiple numbered positions — each can be set to UP (ON) or DOWN (OFF). Before setting addresses, always check the printed direction and numbering on the physical switch, as orientation can vary. Incorrectly set addresses will prevent proper multi-battery communication and BMS data aggregation.

Install
FSolar strongly recommends using identical models in any parallel battery bank. Mixing different capacities (e.g. 8KWH and 16KWH) can cause unequal charge/discharge rates, premature BMS protection triggers, and reduced overall system performance. For reliable multi-battery setups with the FSolar 14KW 3-phase inverter, use the same model, same firmware version throughout the bank.