DCHOUSE 12V 12Ah LiFePO4 Lithium Battery and DC-USB Adapter User Manual

1. Introduction

This manual provides essential information for the safe and efficient use of your DCHOUSE 12V 12Ah LiFePO4 Lithium Battery with the included DC 12V to Type-C and USB Adapter. This versatile power solution is designed for various applications, including recreational vehicles (RVs), golf carts, lawn mowers, solar power systems, and children's electric cars. The battery features an integrated Battery Management System (BMS) for enhanced protection and longevity.

Key Features:

• Type-C and USB Discharge: The bidirectional charger supports three discharge ports (Type-C and two USB-A) for powering external devices. Type-C output: Max 45W; USB-A output: 5V/2.4A.
• Integrated BMS Protection: Protects against overcharge, deep discharge, and short circuits, while maintaining cell balance.
• Compact and Lightweight: Weighing approximately 2.64 kg (5.82 lbs), it is significantly lighter than traditional lead-acid batteries, making it ideal for portable and outdoor use.
• Capacity Expansion: Supports series and parallel connections for increased voltage or capacity. Do not exceed 4 batteries in series or parallel.
• Wide Application: Suitable for energy storage, outdoor applications (e.g., amateur radio, fish finders), trolling motors, golf carts, lawn mowers, solar panels, and emergency power. Not suitable for engine starting batteries.

2. Safety Instructions

Read all safety instructions before operating the battery and adapter. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Always ensure correct polarity when connecting the battery.
• Do not short-circuit the battery terminals.
• Do not expose the battery to fire, excessive heat, or direct sunlight.
• Do not immerse the battery in water or other liquids.
• Do not disassemble, puncture, or modify the battery or adapter.
• Keep the battery away from children and pets.
• Use only approved chargers for the LiFePO4 battery.
• Operating temperature for charging: 0°C to 50°C (32°F to 122°F).
• Operating temperature for discharging: -20°C to 55°C (-4°F to 131°F).
• Do not use this battery for engine starting applications.
• When connecting multiple batteries, ensure they are of the same type, capacity, and state of charge. Do not exceed 4 batteries in series or parallel.

3. Product Overview

The DCHOUSE 12V 12Ah LiFePO4 battery comes with a DC 12V to Type-C and USB adapter. Familiarize yourself with the components before use.

Figure 3.1: DCHOUSE 12V 12Ah LiFePO4 Lithium Battery with DC-USB Adapter.

DC 12V to Type-C and USB Adapter:

Figure 3.2: Close-up of the DC 12V to Type-C and USB Adapter ports.

• Type-C (IN/OUT) Port: Supports both input (charging the battery) and output (discharging to devices). Max 45W output.
• USB*2 (OUT) Ports: Two USB-A ports for discharging to devices. 5V/2.4A output per port.
• DC 5.5*2.1mm Input: For connecting to the 12V battery.

Figure 3.3: Dimensions of the DC 12V to Type-C and USB Adapter.

4. Setup

4.1 Initial Charging

It is recommended to fully charge the battery before its first use. Connect the DC 12V to Type-C and USB Adapter to the battery using the provided cables (e.g., crocodile clips to the battery terminals and the DC 5.5*2.1mm plug to the adapter). Then, connect a suitable power source (e.g., a wall adapter) to the Type-C IN/OUT port of the adapter. The Type-C indicator light will show the charging status.

Figure 4.1: Illustrates charging the battery using the Type-C input on the adapter.

4.2 Connecting to the Battery

Connect the DC 5.5*2.1mm plug from the adapter's cable to the DC input port on the adapter. Attach the crocodile clips to the corresponding positive (+) and negative (-) terminals of the 12V LiFePO4 battery. Ensure a secure connection.

4.3 Series and Parallel Connections

The DCHOUSE LiFePO4 batteries support both series and parallel connections to increase voltage or capacity.

• Important: When connecting multiple batteries, ensure they are of the same type, capacity, and state of charge.
• Limit: Do not connect more than 4 batteries in series or parallel.
• Consult a qualified technician if you are unsure about multi-battery configurations.

5. Operating Instructions

5.1 Discharging to Devices (Powering External Devices)

Once the adapter is connected to the 12V battery, you can use the Type-C and USB-A output ports to power or charge your electronic devices.

• Connect your device's charging cable to the Type-C IN/OUT port (for Type-C devices) or one of the USB OUT ports (for USB-A devices) on the adapter.
• The Type-C port can deliver up to 45W. The USB-A ports deliver 5V/2.4A.
• The adapter can power up to 3 devices simultaneously (one Type-C, two USB-A).

Figure 5.1: The adapter connected to the battery, powering a smartphone, camera, and fan.

5.2 Charging the 12V Battery

The adapter can also be used to charge the 12V LiFePO4 battery.

• Connect the adapter to the 12V battery as described in Section 4.2.
• Connect a suitable power source (e.g., a wall adapter with Type-C output) to the Type-C IN/OUT port on the adapter.
• Recommendation: For efficient charging, it is recommended to use this adapter to charge 12V batteries of 50Ah capacity or below. Charging larger capacity batteries may result in significantly longer charging times.
• Crocodile clips are suitable for M6 or smaller battery terminals.

Figure 5.2: The adapter connected to a 12V battery, receiving power from a wall outlet via Type-C.

5.3 Type-C Port Indicator

The Type-C port on the adapter has an indicator light to show its status:

Figure 5.3: Explanation of the Type-C port indicator light statuses.

• Red Light On: Indicates charging status.
• Green Light On: Indicates full charge status or discharging status.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your DCHOUSE LiFePO4 battery.

• Regular Inspection: Periodically check the battery terminals and cables for any signs of corrosion, damage, or loose connections.
• Cleaning: Keep the battery and adapter clean and free from dust and debris. Use a dry, soft cloth for cleaning.
• Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% capacity. Store in a cool, dry place, away from direct sunlight and extreme temperatures.
• Temperature: Adhere to the specified operating and storage temperature ranges (Charging: 0°C to 50°C; Discharging: -20°C to 55°C).
• Avoid Deep Discharge: While the BMS protects against deep discharge, it is best practice to avoid consistently draining the battery to 0% to maximize its lifespan.

7. Troubleshooting

If you encounter issues with your DCHOUSE LiFePO4 battery or adapter, refer to the following common problems and solutions.

8. Specifications

9. Warranty and Support

For detailed warranty information, product registration, or technical assistance, please refer to the official DCHOUSE website or contact their customer support directly. Keep your purchase receipt as proof of purchase.

Manufacturer: DCHOUSE
Model Number: B0BRPWVZSB