FLLYROWER 36V 100AH LiFePO4 Battery - Long Life Deep Cycle

In this review of the FLLYROWER 36V 100AH LiFePO4 battery, the bottom line is clear: this pack is aimed at users who need long life and reliable deep cycling for marine, RV, solar or off-grid use. The single biggest reason to buy is its combination of A-grade cells with a claimed lifespan up to ten years and an extremely high cycle count, which translates into far fewer replacements and lower lifecycle cost compared with lead-acid alternatives. For anyone wanting a lightweight, manageable 36V pack with smart BMS monitoring, this review explains where it excels and what to expect.

Key Features

• 10 year lifetime: The battery uses A-grade cells and is marketed for a lifespan up to ten years, reducing long-term replacement needs.
• Deep cycle capability: Designed for deep cycles without the careful cycle monitoring required by lead-acid batteries, making it suitable for heavy daily use.
• Smart BMS with app: The integrated smart BMS provides multiple protections and state monitoring through an app, helping protect against overcharge, overdischarge and overheating.
• Capacity expansion: No limit on parallel connections allows users to scale capacity for larger RV, solar or off-grid systems.
• Lightweight and portable: The pack is much lighter than equivalent lead-acid batteries and includes a handle for easier transport and installation.
• Versatile applications: Usable for trolling motors, golf carts, RV power systems, lawn equipment and home energy storage scenarios.

Who It's For

The FLLYROWER 36V 100AH battery is best for boaters using trolling motors, RV owners wanting a lighter house battery, and small off-grid solar installs where deep cycle durability and long service life matter most. It is also a strong option for golf cart conversions and users who want the convenience of app-based battery monitoring.

Those who should look elsewhere include buyers seeking plug-and-play batteries with integrated inverter hardware or users who need proprietary form factors for specific OEM equipment. Also consider professional install support if you plan large parallel banks or complex integrations.

Pros & Cons

Pros

• Long service life with A-grade cells and very high cycle endurance.
• Smart BMS with multiple protections and app monitoring for clear battery management.
• Lightweight and portable design that reduces installation effort compared with lead-acid.
• Expandable capacity through parallel connection for flexible system sizing.

Cons

• Documentation does not list detailed charge/discharge rates or dimensions in the included summary, so installers should confirm compatibility with chargers and systems.
• Users expecting integrated inverter or mounting hardware may need additional components for a complete system.

Specifications

Our Verdict

The FLLYROWER 36V 100AH LiFePO4 battery is a practical choice for anglers, RV campers and off-grid users who prioritize long life, deep cycling and app-based battery management. It delivers good value against legacy lead-acid options by cutting weight and maintenance, and its scalable parallel capability makes it adaptable for growing systems. Verify charger and physical fitment before purchase to ensure a smooth installation.

Frequently Asked Questions

Can multiple batteries be connected in parallel?
Yes, the manufacturer states there is no limit on parallel connections, enabling capacity expansion for larger systems.

Does the battery include temperature protection?
Yes, the smart BMS includes low-temperature cutoff plus high temperature protection and other safety functions.

Is this battery suitable for trolling motors and golf carts?
Yes, customers report using it successfully on trolling motors and carts, enjoying longer run times and significant weight savings versus lead-acid.