WattCycle 24V 314AH LiFePO4 Lithium Battery User Manual

1. Introduction

Thank you for choosing the WattCycle 24V 314AH LiFePO4 Lithium Battery. This advanced battery is designed to provide reliable, sustainable, and high-performance energy storage for a wide range of applications, including RVs, solar systems, home backup, marine use, and more. Featuring EVE-Grade A+ cells, a robust 300A Battery Management System (BMS), and smart Bluetooth 5.0 monitoring, this battery ensures safety, longevity, and ease of use. Please read this manual thoroughly before installation and operation to ensure optimal performance and safety.

2. Key Features

• EVE-Grade A+ Cells & 8000+ Deep Cycles: Utilizes premium EVE-grade A+ cells for superior performance and safety. Offers 8000+ cycles at 60% Depth of Discharge (DOD), providing 3-5 times longer lifespan than traditional lead-acid batteries. Delivers an impressive 8.03 kWh of energy.

A cutaway view of the WattCycle battery highlighting the internal EVE 314Ah Grade A+ cells, emphasizing their superior performance, 8038Wh usable energy, and high energy density (52.2 Wh/lbs).
• Smart Bluetooth 5.0 Monitoring: Built-in upgraded smart BMS with Bluetooth 5.0 module allows real-time monitoring of battery information (voltage, current, capacity) via the WattCycle APP. Bluetooth connection range is up to 15 meters.


This image emphasizes the Bluetooth connectivity feature, showing the battery and a smartphone displaying the WattCycle app. The app allows users to check battery status in real-time, make parameter adjustments, and control charging/discharging.

• Flexible Expansion: The 24V 314Ah battery delivers 8038Wh of energy and supports up to 4 parallel (4P) and 2 series (2S) configurations, providing up to 1256Ah at 48V for a maximum capacity of 64.307 kWh.

This diagram demonstrates the scalability of the WattCycle battery system, showing how multiple 24V 314Ah batteries can be configured in a 2S4P (2 series, 4 parallel) setup to achieve a maximum energy capacity of 64.31 kWh, suitable for large-scale power needs.
• Compact & Lightweight: Space-saving dimensions (18.9×9.53×14.25 inches) and a weight of 153.99 lbs (45% lighter than 24V 280Ah lead-acid batteries). Features a unique full-aluminum internal frame for zero swelling risk and a robust metal case for durability.


This image provides the physical dimensions of the WattCycle 24V 314Ah LiFePO4 battery: 18.9 inches (length) x 9.53 inches (width) x 14.25 inches (height), along with its weight of 153.99 lbs. It also shows the M8 terminals and insulating caps.

• 300A BMS with Multi-Protection: Integrated 300A BMS provides comprehensive protection against overcharge, over-discharge, short-circuit, overcurrent, and over-temperature.
• 600A High Current for 20 Seconds: Engineered with high-rate power cells to deliver instantaneous 600A high-current discharge for peak power demands, such as golf cart hill climbing.
• -20°C Low-Temperature Protection: Intelligent temperature control system automatically activates protection mechanisms in extreme cold (-20°C), preventing over-discharge damage and ensuring reliable performance.

The image depicts the WattCycle battery in a cold, snowy setting, highlighting its intelligent temperature control system. It indicates that charging stops below 32°F/0°C, charging recovery occurs above 41°F/5°C, and discharging stops below -4°F/-20°C to protect the battery.

3. Installation & Setup

3.1 Unpacking

Carefully remove the battery and all accessories from the packaging. Inspect for any visible damage. If damage is found, contact customer support immediately.

3.2 What's in the Box

• 1 x 24V 314Ah Lithium Battery
• 1 x User Manual

3.3 Connection Guidelines

Ensure all connections are secure and properly insulated. Use the provided M8 terminals and insulating caps. For series or parallel connections, refer to the detailed diagrams in the full user manual (not included in this summary) to ensure correct wiring and avoid damage to the battery or connected equipment. Always connect positive to positive and negative to negative for parallel connections. For series connections, connect positive of one battery to negative of the next.

4. Operation

4.1 Initial Charge

It is recommended to fully charge the battery before its first use. Use a compatible LiFePO4 charger with appropriate voltage and current settings.

4.2 Bluetooth Monitoring

Download the WattCycle APP from your device's app store. Enable Bluetooth on your smartphone and open the app to connect to your battery. The app will display real-time data such as voltage, current, state of charge (SOC), temperature, and cycle count. You can also adjust certain parameters and control charging/discharging through the app.

4.3 Typical Usage Scenarios

The 8038Wh energy capacity allows for extended operation of various appliances. Refer to the table below for estimated runtimes:

This visual illustrates the power capacity of a single WattCycle 24V 314Ah battery (8038Wh), showing estimated runtimes for common appliances.

5. Maintenance

WattCycle LiFePO4 batteries require minimal maintenance. However, regular checks can prolong their lifespan:

• Regular Inspection: Periodically check battery terminals for corrosion or loose connections. Ensure the battery casing is clean and free from debris.
• Temperature Management: While the battery has built-in low-temperature protection, avoid prolonged exposure to extreme temperatures outside the recommended operating range.
• Storage: If storing the battery for an extended period, ensure it is charged to approximately 50% State of Charge (SOC) and stored in a cool, dry place.

6. Troubleshooting

If you encounter issues with your WattCycle battery, consider the following common troubleshooting steps:

• Battery Not Charging: Check charger connections, ensure the charger is compatible with LiFePO4 batteries, and verify input power. The BMS may have activated protection (e.g., low-temperature cut-off).
• No Power Output: Check all wiring connections for looseness or corrosion. Verify that the BMS has not activated a protection mode (e.g., over-discharge, short-circuit).
• Bluetooth Connection Issues: Ensure Bluetooth is enabled on your device and the WattCycle APP is updated. Try restarting both the app and your device. Ensure you are within the 15-meter range.
• Unusual Behavior: If the battery exhibits unusual behavior (e.g., excessive heat, strange odors), immediately disconnect it from all loads and charging sources and contact customer support.

For more detailed troubleshooting or issues not covered here, please refer to the comprehensive troubleshooting guide in the full user manual or contact WattCycle customer support.

7. Technical Specifications

8. Warranty & Support

8.1 Warranty Information

WattCycle offers a 5-Year Worry-Free Warranty on this product. This warranty covers manufacturing defects and ensures free replacement if issues arise due to such defects. For detailed terms and conditions, please refer to the warranty card included with your product or visit the official WattCycle website.

8.2 Customer Support

WattCycle is committed to providing excellent customer service. Our Nevada-based support team is available 24/7 to assist with returns, troubleshooting, setup help, and any other inquiries you may have. You can reach us via:

• Email: service@wattcycle.com
• Website: www.wattcycle.com

We value your feedback and continuously strive to improve our products and services based on your needs.