This review delves into the Hoolike 12.8V 100Ah LiFePO4 battery, examining its performance and features in detail. We unpack the battery's physical attributes, including its compact size, robust build, and impressive IP67 waterproof rating. The ability to connect multiple batteries in series and parallel configurations for increased power is also explored. Rigorous testing formed the core of this evaluation, encompassing capacity, discharge rate, and temperature protection functionality.Our comprehensive testing involved a 10-amp capacity test exceeding the advertised 100Ah, high-discharge tests under demanding conditions, and verification of both high and low-temperature protection mechanisms. We meticulously examined the internal components, including the BMS and cell arrangement, to assess build quality and safety features. This review provides a thorough analysis, highlighting both strengths and minor discrepancies, ultimately determining the Hoolike battery's suitability within the competitive LiFePO4 market.
Pros And Cons
- IP67 waterproof (submersible up to 1 meter for 30 minutes)
- Removable lid for easy access to cells and BMS
- 101.97 Amp-hour capacity in testing (slightly exceeding advertised capacity)
- 100 Amp BMS
- High-temperature protection (automatically shuts off when overheated)
- Low-temperature protection (automatically shuts off when frozen)
- Handles 140 amps discharge without overheating
- User manual lacks in-depth information
- Labeling on the battery states 50 amp continuous discharge, despite having a 100 amp BMS (this discrepancy was confirmed by the manufacturer)
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Unboxing and Initial Impressions
The package contained the battery, a surprisingly small user manual, terminal screws, and that's about it. The battery itself is a group 31 size, measuring 13 inches by 6.77 inches by 8.58 inches and weighing a manageable 18 pounds. Its compact size makes it suitable for various applications. The IP67 waterproof rating is a significant advantage, exceeding the typical IP65 rating of most batteries.
The ability to series and parallel connect the batteries up to a 4S4P configuration offers flexibility for different power demands. This makes it ideal for applications requiring higher voltage or capacity. The overall build quality appears robust, promising durability and longevity.
Capacity and Discharge Test
A thorough capacity test was conducted using a capacity tester set to 10 amps. The test ran for 10 hours and 8 minutes, yielding impressive results of 101.97 amp-hours. This surpasses the advertised 100Ah, indicating excellent performance and exceeding expectations.
The labeling on the battery states a 50-amp continuous discharge and a 100-amp max discharge, which is further corroborated by the testing. The capacity test validates the battery's advertised capacity and suggests potential for higher continuous discharge than stated.
Internal Components and BMS Inspection
The removable lid allows easy access to the cells and the BMS. Inside, we find flexible seven-gauge wires and a clearly labeled 100-amp BMS. The cells are well-insulated and neatly arranged within the enclosure. The battery's construction is robust, suggesting good protection for internal components.
The BMS includes a temperature sensor, taped to the top of the cells. The balance wires are welded and soldered securely. The overall internal design appears well-engineered and contributes to both safety and performance.
Temperature Protection Testing
Tests were performed to verify the high-temperature protection. Using a heat gun, the battery's temperature protection successfully shut down the charging process when it reached a critical temperature. The system automatically resumed charging once the temperature dropped.
Similarly, low-temperature protection was tested using frozen saltwater. The charging halted as expected, restarting upon reaching a safe temperature. This confirms the effective functionality of the battery's temperature protection system.
High-Discharge Current Test and Conclusion
A high-discharge test was conducted using an inverter and a clamp meter, drawing approximately 140 amps for 5 minutes. The battery performed flawlessly, showing no signs of overheating or strain. This confirmed the battery's capability to handle high discharge currents.
Overall, the Hoolike 12.8V 100Ah LiFePO4 battery demonstrates excellent performance, exceeding expectations in capacity and high-discharge tests. The robust build quality, effective temperature protection, and reliable BMS make this a strong contender in the LiFePO4 battery market. The minor discrepancy in the labeling regarding the continuous discharge current is addressed by the manufacturer and is not a major concern given the test results.
