This comprehensive review delves into the Eco Worthy 51.2V 100Ah LiFePO4 battery, examining its performance, build quality, and safety features through unboxing, teardown, and rigorous testing. We explore the battery's physical attributes, including its weight, dimensions, and robust construction, highlighting the inclusion of protective measures and convenient features like integrated handles and a clear LED display. The accompanying mobile app's functionality and data accuracy are also evaluated.The review further details the results of extensive discharge and load tests, showcasing the battery's capacity, consistent voltage output, and effective overload protection. A thorough teardown analysis reveals the internal components, build quality, and design considerations, while additional tests assess the battery's performance under extreme temperature conditions. Ultimately, this review provides a detailed assessment of the Eco Worthy 51.2V 100Ah LiFePO4 battery, offering a balanced perspective on its strengths and weaknesses.
Pros And Cons
- Two sturdy metal handles for lifting.
- Protective plastic cover for terminals.
- High-quality EVA foam for storage and terminal protection.
- Completely sealed, no cooling fan needed.
- Metal case acts as a heatsink.
- Bluetooth app for monitoring.
- 125 amp breaker.
- Easy access for repair/troubleshooting (14 screws).
- Over 7% more capacity than advertised.
- Relatively flat discharge curve.
- BMS shuts down the battery to prevent overheating and overload.
- Bluetooth app requires a separate download and login (guest mode available).
- App provides only basic information.
- Aluminum handles (not steel).
- Discharge test limited to 3 amps per discharger (6 amps total).
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Unboxing and Package Contents
The Eco Worthy 51.2V 100Ah LiFePO4 battery arrived well-packaged. The box contained a user manual, a quick guide, two battery cables for parallel connection, a ground wire, and a network cable for communication between batteries in parallel configuration. A protective plastic cover for the terminals and a piece of high-quality EVA foam for storage and terminal protection were also included. This foam is crucial for preventing short circuits during storage; I recommend storing the battery vertically with the foam in place.
Battery Design and Physical Features
The battery is substantial, weighing in at nearly 99 lbs (45 kg). Two sturdy metal (aluminum) handles are essential for lifting and moving. The front panel features a 125-amp breaker switch and a power switch, along with LED indicators for runtime, alarms, and state of charge. Each LED bar represents approximately 17% of the battery's capacity. The battery terminals are conveniently arranged with positive and negative terminals tied together; connection order doesn't matter.
The robust build quality is evident in the fully sealed metal casing, which acts as a heatsink. There's no need for vents or cooling fans.
Bluetooth App Functionality and Data
A dedicated JBD lithium-ion app (with an elephant icon) is required for Bluetooth connectivity. The app provides real-time data on pack voltage, current (positive for charging, negative for discharging), state of charge (SOC), cell voltage (min/max), temperature (min/max), and cycle count. While functional, the app provides only basic information. The battery must be turned on to connect via Bluetooth.
Data from the app was confirmed during a discharge test. The discharge test showed consistent performance and slightly higher than advertised capacity.
Discharge Test and Capacity
A discharge test was conducted using two 150-watt dischargers, each drawing 3 amps, for a total of 6 amps. The test took approximately 17 hours to deplete the battery. The recorded capacity exceeded the advertised 100Ah by over 7%, demonstrating excellent performance. The discharge curve remained relatively flat until near the end, indicating consistent voltage output.
Load Test and Overload Protection
A load test was performed using a 48V 4000W inverter, a 1500W heater, and a 1500W electric cle. The battery sustained a stable 63 amps (over 3000 watts) for several minutes without issues. Further testing with a modified 5500W electric stove (drawing approximately 110 amps) showed the BMS shutting down after only 5 seconds when the total current exceeded 125 amps (6250 watts). This demonstrates effective overload protection.
The battery quickly recovered and resumed operation after the overload protection triggered, demonstrating a robust safety mechanism.
Teardown and Internal Components
Disassembly was straightforward, involving only 14 screws. The large BMS is impressively designed with ample space for heat dissipation. The battery pack consists of 16 prismatic cells connected in series, with laser-welded terminals and securely fastened balance cables. Temperature sensors are strategically placed, avoiding common mistakes like covering them with silicone sealant.
The cell manufacturer was identified as 'Wrapped' using a QR code on the cells. The build quality is excellent, featuring a metal case within a metal case, and the internal wiring is neat and well-organized.
Temperature Protection Tests
Cold temperature charging protection was tested using an ice bath (-12°C). Charging ceased immediately upon cooling the temperature sensor, demonstrating proper cold protection. Upon warming the sensor, charging resumed. An overheat protection test was conducted using a heat gun. The BMS shut down after heating the sensor, again highlighting effective protection against high temperatures.
Conclusion and Overall Assessment
The Eco Worthy 51.2V 100Ah LiFePO4 battery impressed with its build quality, performance, and safety features. The easy teardown, robust BMS, and effective temperature and overload protection make it a compelling option. The slightly higher-than-advertised capacity is a welcome bonus. The competitive price point makes it an excellent value for its features and performance. While the app provides basic data, the battery's overall quality and performance outweigh this minor drawback.
This battery is highly recommended for applications requiring reliable and robust power storage. The excellent build quality, impressive capacity, and effective safety features make it stand out from the competition.