In an era that demands efficient and reliable energy storage, we proudly introduce our innovative FLB series lithium battery packs. These batteries combine exceptional power density, robust safety features and intelligent management in remarkably compact designs. Let's explore what makes the FLB series a game-changer:
Compact size, larger capacity

Compared to traditional models, the FLB series increases capacity by 1.12 times while reducing volume on a 41%, making it ideal for projects where space is limited but performance is non-negotiable. Do you need more power? No problem: up to 32 units can be connected in parallel to scale with your power needs.
Uncompromising security – designed for peace of mind

Your safety is our priority.
- Superior Thermal Management: The top-mounted BMS boarddesign enables direct heat dissipation, ensuring faster cooling and temperature adjustment.
- Built-in Fire Suppression: An integrated aerosol fire extinguishing module activates during thermal events, preventing electrolyte leakage and containing fire risks.
- Circuit breaker with trip protectionguards against high-voltage risks.
- Stable Cell Operation: Advanced Cell Connection System (CCS) technology guarantees long-term battery stability and performance.
Extreme durability – built to last, anywhere
- Exceptional Cycle Life: The FLB48314TG1 model offers up to 8000 charge cycles and other models reach 6000 cycles (under lab conditions).
- IP65 Weatherproof Level: it’s fully resistant to water and dust—ideal for outdoor environments.
- Premium Materials: Constructed with imported UV-resistant, anti-aging, and anti-oxidation PC material to withstand harsh environments and prolonged exposure.

Smart connectivity and control
With built-in Bluetooth/Wifi, you can monitor system/battery status, relative data and receive alerts via our FSolar app, remotely from anywhere, anytime.

Quick maintenance with external fuse design
Minimize downtime with Felicitysolar's unique externally accessible fuse structure. This patented technology allows for quick, tool-free removal of fuses, simplifying maintenance and improving operational continuity.

Optional heating module
For colder environments, the optional heating module helps raise the battery cells to an optimal working temperature, impacting uninterrupted performance, even in freezing conditions.

With added security, robust durability and intelligent management, the FLB series is built to meet the evolving demands of residential and commercial energy storage systems. It's not just a battery pack, it's your trusted partner on the journey to energy independence.

