
In an era demanding efficient and reliable energy storage, we proudly introduces our groundbreaking 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, Bigger Capacity

Compared to traditional models, the FLB series boosts capacity by 1.12 times while reducing volume by 41%, making it ideal for projects where space is limited but performance is non-negotiable. Need more power? No problem—up to 32 units can be connected in parallel to scale with your energy needs.
Uncompromising Safety: Engineered 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 adjusting.
- 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 & 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 exclusive externally accessible fuse structure. This patented technology allows for quick, tool-free removal and replacement of fuses, simplifying maintenance and enhancing operational continuity.

Optional Heating Module
For colder environments, the optional heating module helps bring battery cells up to optimal working temp—ensuring uninterrupted performance, even in freezing conditions.

With extra safety, robust durability, and smart management, the FLB series is built to meet the evolving demands of both residential and commercial energy storage systems. It’s not just a battery pack—it’s your reliable partner in the journey toward energy independence.


