1. Introduction
Thank you for choosing the DC HOUSE 12V 10A LiFePO4 Battery Charger. This smart trickle charger is designed to provide reliable charging and maintenance for both 12V Lead-Acid and 12V LiFePO4 Lithium batteries. It is suitable for a wide range of applications including RVs, cars, lawn mowers, motorcycles, and trucks. This manual provides essential information for safe and effective operation of your charger.
2. Safety Information
Please read all safety instructions carefully before using the charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always wear eye protection and protective clothing when working with batteries.
- Ensure the charging area is well-ventilated.
- Never smoke or allow sparks or flames in the vicinity of the battery or charger.
- Keep the charger away from children and unauthorized personnel.
- Disconnect the AC power supply before making or breaking connections to the battery.
- Do not charge frozen batteries.
- Do not use the charger if it has been damaged in any way.
- Ensure the charger is compatible with your battery type and voltage before connecting.
3. Product Overview
The DC HOUSE 12V 10A Battery Charger is a versatile and intelligent charging solution. It features a robust design and an intuitive LCD display for monitoring charging status.

The DC HOUSE 12V 10A Battery Charger unit with its integrated display and connection ports.
The charger comes equipped with multiple connection options for convenience:

The charger includes copper lug terminals, alligator clips, and an SAE connector for versatile battery connections.
The package typically includes:
- 1x DC HOUSE 12V 10A Battery Charger
- 1x User Manual
- 1x SAE-Copper Lug Connector
- 1x SAE-Alligator Clips Connector

Contents of the DC HOUSE 12V 10A Battery Charger package, including the charger unit, manual, and various connectors.
4. Setup and Connection
Follow these steps to safely connect your DC HOUSE battery charger:
- Connect to Mains Power: Plug the charger's AC power cord into a standard wall outlet. The charger's display should illuminate.
- Select Desired Mode: Press the 'MODE' button to cycle through the available charging modes (LiFePO4, AGM, STD, DC Power Supply). Select the mode appropriate for your battery type. The mode will lock once a battery is connected.
- Connect SAE Cable to Battery: Attach the appropriate SAE connector (copper lug or alligator clips) to your battery terminals. Ensure correct polarity: red to positive (+), black to negative (-).
- Connect SAE Connector to Charger: Plug the SAE connector from the battery into the charger's SAE port.

Visual guide illustrating the four steps to connect the DC HOUSE 12V 10A Battery Charger to a battery and power source.
This video demonstrates the connection process of the DC HOUSE 12V 10A Battery Charger to a vehicle battery, highlighting the ease of use with its plug-and-play design.
5. Operating Instructions
Once connected, the charger will automatically begin the charging process based on the selected mode.
5.1. Charging Modes
- LiFePO4 Mode: For 12V Lithium Iron Phosphate batteries.
- AGM Mode: For 12V Absorbed Glass Mat batteries.
- STD Mode: For 12V Standard Lead-Acid batteries.
- DC Power Supply Mode: Provides a stable 12V DC output.

The charger supports various battery chemistries and types, including LiFePO4, AGM, and STD, and can also function as a 10A DC power supply.
5.2. 0V Dead Battery Activation
The charger can activate deeply discharged LiFePO4 batteries, even those with a triggered BMS protection lock, restoring them to a stable voltage for charging.

The charger features 0V LiFePO4 activation for deeply discharged batteries and Pulse Repair for lead-acid batteries.
5.3. Pulse Repair Technology
For damaged, stratified, or sulfated lead-acid batteries, the charger can initiate a pulse repair cycle. This process typically takes up to 2 hours, after which the charger automatically switches to normal charging mode to restore battery capacity and extend service life.
5.4. Smart Trickle Charging
The charger safely maintains batteries with low-current trickle charging. It automatically stops charging once the battery is full to prevent overcharging, making it ideal for long-term maintenance of idle vehicles.

The smart trickle charging feature automatically maintains battery health, stopping when fully charged and restarting when power drops.
5.5. Winter Battery Maintenance
The charger operates safely and efficiently in cold conditions (below 14°F / -10°C) with an intelligent pre-charging mode that uses reduced current to protect batteries. This ensures optimal performance during winter.

The charger adapts to ambient temperatures, providing low-temperature charging protection in cold weather and preventing overcharging in hot weather.
5.6. Real-Time LCD Charging Status Display
The LCD interface provides clear, real-time information about the charging process.

The LCD screen displays real-time charging voltage, current, battery percentage, and status alerts for easy monitoring.

Detailed view of the LCD display, showing indicators for voltage, current, charging mode, low-temp charging, faulty battery, reverse polarity, short circuit, and State of Charge (SOC).
Note: The display automatically turns off after 1 minute by default. Press the "MODE" button to reactivate it; current and voltage will alternate every 15 seconds.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your charger and batteries.
- Cleaning: Disconnect the charger from all power sources and batteries before cleaning. Use a dry, soft cloth to wipe the exterior. Do not use abrasive cleaners or solvents.
- Storage: Store the charger in a cool, dry place when not in use. Ensure cables are neatly coiled and not kinked.
- Cable Inspection: Regularly inspect the charging cables and connectors for any signs of damage, wear, or corrosion. Replace damaged components immediately.
7. Troubleshooting
If you encounter issues with your charger, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger not turning on | No AC power; faulty power outlet; damaged power cord. | Check AC power connection; test outlet with another device; inspect power cord for damage. |
| Charger not charging battery | Incorrect battery connection (reverse polarity); battery too deeply discharged (below 0V for LiFePO4); incorrect mode selected; faulty battery. | Verify correct polarity; ensure battery voltage is within charger's range; select correct charging mode; test battery condition. |
| Error message on display | Short circuit; reverse polarity; over-temperature. | Check connections for short circuits; correct polarity; allow charger to cool down. |
| Charger gets hot | Normal operation; poor ventilation; excessive load. | Ensure adequate ventilation around the charger; if excessively hot, disconnect and contact support. |
If the problem persists after attempting these solutions, please contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | DC HOUSE |
| Product Dimensions | 3.94"D x 7.48"W x 2.95"H |
| Item Weight | 2.6 Pounds |
| Output Voltage | 12 Volts (DC) |
| Input Voltage | 12 Volts (DC) |
| Current Rating | 10 Amps |
| Amperage | 10 Amps |
| Connector Type Used on Cable | Copper lug terminals, alligator clips, SAE connector |
| Number of Ports | 1 |
| Mfr Part Number | L131211800111-1 |
| UPC | 810198851014 |
| Manufacturer | DC HOUSE |
| Warranty Description | 1 year |

A detailed table of product parameters for the DC HOUSE 12V 10A Battery Charger, including input/output voltage, current, battery types, and ambient temperature range.
9. Warranty and Support
9.1. Warranty Information
The DC HOUSE 12V 10A LiFePO4 Battery Charger comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
9.2. Customer Support
For technical assistance, warranty claims, or any questions regarding your DC HOUSE product, please refer to the contact information provided on the product packaging or the official DC HOUSE website. When contacting support, please have your model number (L131211800111-1) and proof of purchase readily available.

