This comprehensive review dives deep into the Enjoybot 48V 65Ah LiFePO4 battery, a high-capacity power solution boasting impressive features. We meticulously test its performance under various conditions, from light loads to extreme stress tests pushing it to its 8000W limit. Beyond raw power, we explore the user-friendly Bluetooth app, its accuracy in monitoring voltage, amperage, and individual cell health, and its surprising ability to control multiple batteries. We also examine its robust construction, including the internal components and the effectiveness of its self-heating and temperature protection mechanisms.This review assesses the battery's real-world performance, providing detailed results from discharge tests, charging evaluations, and high-load simulations. We uncover the accuracy of the Bluetooth app, highlighting its functionality and ease of use. We also investigate the battery's physical characteristics, including its size, weight, and internal build quality. Ultimately, this review aims to provide a balanced and thorough assessment, helping readers determine if the Enjoybot 48V 65Ah LiFePO4 battery is the right choice for their power needs.
Pros And Cons
- Bluetooth app monitoring
- Accurate output display
- Remote on/off control via Bluetooth app
- Auto-balance function
- Self-heating function (requires compatible charger)
- High continuous discharge rate (120A)
- Compact size for a 48V battery
- Good build quality
- Low temperature charging protection
- Overheat protection
- Bluetooth app requires searching for "bat BMS"
- Heating function only activates when battery is cold and a compatible charger is connected.
- Case glued together with silicone, making disassembly difficult.
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Physical Dimensions and Weight
The Enjoybot 48V 65Ah LiFePO4 battery boasts substantial dimensions: 19.5 inches by 8.5 inches by 9.2 inches. This translates to a considerable weight of 55.2 lbs (approximately 25 kg). Its size and weight should be considered when planning for installation and transportation.
The substantial weight necessitates careful consideration for mounting and mobility. The large form factor may limit placement options in certain applications. Despite its size, the battery promises a considerable power capacity.
Bluetooth App Functionality
Monitoring the battery's performance is facilitated by a Bluetooth app. However, the app isn't found by searching for 'Enjoybot'. The user manual specifies searching for 'Bat BMS' to locate the correct application.
The app provides real-time data on battery voltage, amperage, wattage, individual cell voltages, and charge cycles. The color-coded cell voltage display (gray, blue, green) facilitates quick assessment of battery balance.
Discharge Test and App Accuracy
A discharge test using a heating element (drawing approximately 5 amps) demonstrated the app's accuracy. The app's displayed amperage closely matched readings from a separate amp meter. The app also accurately reflected the light bulb's on/off state.
The accuracy of the app's amperage and wattage readings builds confidence in its reliability for monitoring battery health and usage. The visual confirmation of output control further emphasizes the app's functionality.
Charging Test and App Control
The charging test, utilizing a 22-amp charger, revealed precise charging current readings on both the charger and the app. The app allows for remote control of the battery's charging and discharging functions. The ability to remotely control charging is a key convenience feature.
The consistent 22-amp charging rate underscores the accuracy and reliability of the battery and the charger. The app's remote control functionality enhances user convenience and safety.
App Universality and Multi-Battery Support
The app's versatility extends beyond the Enjoybot battery; it can connect to other Bluetooth-enabled batteries. This feature is valuable for users with multiple batteries of varying specifications.
The app's ability to monitor multiple batteries from different manufacturers significantly enhances its utility. This adaptability makes the app a valuable asset in managing a diverse battery setup.
Extended Discharge Test and Capacity
An extended discharge test at 3 amps resulted in a total discharge time of approximately 22 hours and 9 minutes, yielding a capacity of 66 amp-hours. The near-flat discharge curve indicates consistent performance.
The extended discharge test validates the battery's advertised capacity. The relatively flat discharge curve suggests excellent cell consistency and minimal capacity fade.
High-Load Test and Performance
A high-load test utilizing a 4000W inverter and various appliances (totaling approximately 3000W) demonstrated stable performance. The battery maintained voltage and delivered consistent current under heavy load, with the battery voltage only slightly dropping.
The battery's performance under heavy load underscores its capability for high-power applications. The negligible voltage drop showcases excellent internal resistance and overall health.
Extreme Load Test (8000W)
An extreme load test, pushing the battery to its limits with approximately 8000W of combined load, showcased impressive performance. Despite the extreme load, the battery functioned smoothly and maintained a relatively stable voltage.
The successful extreme load test highlights the battery's robust construction and exceptional capacity. This performance reinforces the battery's suitability for demanding applications.
Internal Components and Battery Construction
The teardown revealed a well-constructed battery pack encased in PVC heat-shrink wrap. Sixteen prismatic cells are connected in series via laser welding and aluminum bus bars. A JBD smart BMS manages battery functions.
The battery's internal construction reflects a high standard of quality. The use of laser welding, aluminum bus bars, and a robust BMS ensures reliability and safety.
Temperature Protection Tests (Cold and Hot)
Tests demonstrated effective low and high-temperature protection. The battery stopped charging when cooled with a duster, resuming charging upon warming. Similarly, the BMS shut down automatically when the battery reached a high temperature (~122°C).
The battery's temperature protection mechanisms effectively safeguard against potential damage from extreme temperatures. These features underscore its overall safety and reliability.
Heating Pad Functionality and Testing
The self-heating pad, powered from the charger, assists in warming the battery during cold-weather charging. Testing confirmed its functionality, with the heating pad activating when the battery was sufficiently cold and deactivating once optimal temperature was reached.
The self-heating feature enhances the battery's usability in cold environments. Its effective operation ensures safe and efficient cold-weather charging.
Conclusion and Overall Assessment
The Enjoybot 48V 65Ah LiFePO4 battery demonstrates excellent performance, accuracy, and build quality. Features such as the Bluetooth app, self-heating, and robust temperature protection mechanisms make it a compelling choice for various applications. The precise control features and versatility of the app also set this product apart.
While the size and weight are substantial, the battery's capacity, performance, and safety features outweigh these considerations for many users. The ease of monitoring and precise control make this battery a top contender in its class.