1. Introduction
This manual provides essential instructions for the safe and effective use of your BounceyCart 400W 12/24V Portable Battery Charger. This intelligent pulse charger is designed for various 12V and 24V lead-acid batteries, including those found in cars, motorcycles, vans, trucks, boats, and lawn mowers. It features automatic voltage recognition, multiple charging modes, and pulse repair capabilities.
2. Safety Instructions
Please read and understand all safety instructions before operating the charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ventilation: Ensure adequate ventilation during charging. Do not operate the charger in a confined area.
- Eye Protection: Always wear eye protection when working with batteries.
- Flammable Materials: Keep the charger and battery away from open flames, sparks, and flammable materials. Batteries can produce explosive gases.
- Connection Order: Connect the battery clamps to the battery terminals before plugging the charger into an AC outlet. Disconnect in reverse order.
- Damaged Cables: Do not use the charger if the power cord or battery cables are damaged. Contact support for replacement.
- Water Exposure: Do not expose the charger to rain or moisture.
- Children: Keep the charger out of reach of children.
- Professional Use: This device is not intended for professional use.
3. Product Overview
Familiarize yourself with the components of your battery charger.

Figure 3.1: Front view of the BounceyCart Intelligent Pulse Charger, showing the main unit with its display, control knob, and switches. The charger features a carrying handle for portability.

Figure 3.2: Detailed view of the charger's control panel, highlighting the 12V/24V indicators, power supply light, current regulation knob, state analysis display, real-time monitoring screen, and switches for Lithium Battery and Ordinary Battery charging modes.

Figure 3.3: A close-up of the robust red (positive) and black (negative) battery clamps, designed for secure connection to battery terminals.

Figure 3.4: The back of the charger, featuring a prominent cooling fan designed to dissipate heat during operation, ensuring stable performance.
Key Components:
- Display Screen: Shows real-time monitoring data such as voltage, current, and charging mode.
- Current Regulation Knob: Adjusts the charging current.
- 12V/24V Indicators: Lights indicating the detected battery voltage.
- Power Supply Indicator: Shows when the charger is connected to power.
- State Analysis Display: Indicates charging status, including "NO load or full charged."
- Charging Mode Switches: Separate switches for "Lithium Battery" and "Ordinary Battery" (lead-acid).
- Battery Clamps: Red (positive) and Black (negative) clamps for connecting to the battery.
- Cooling Fan: Located at the rear to prevent overheating.
- Carrying Handle: For easy portability.
4. Setup and Connection
Follow these steps to safely connect your battery charger.
- Prepare the Battery: Ensure the battery terminals are clean and free of corrosion. If necessary, clean them with a wire brush.
- Connect Battery Clamps:
- Connect the red positive (+) clamp to the positive (+) battery terminal.
- Connect the black negative (-) clamp to the negative (-) battery terminal.
Ensure a secure connection to prevent sparks.
- Select Battery Type: Based on your battery type, switch the appropriate charging mode: "Lithium Battery" for 12.6V lithium batteries or "Ordinary Battery" for 12V/24V lead-acid batteries.
- Connect to Power: Plug the charger's power cord into a standard AC outlet (110V-250V). The charger will automatically detect the battery voltage (12V or 24V) and begin the charging process.
5. Operating Instructions
Automatic Voltage Recognition
The charger automatically identifies whether a 12V or 24V battery is connected and adjusts the charging parameters accordingly. The corresponding 12V or 24V indicator light will illuminate.
Charging Process
Once connected and powered, the charger initiates a five-stage pulse repair charging process. The display screen will show real-time voltage, current, and charging mode. The charger continuously monitors the battery's state to prevent damage and optimize charging efficiency.
Current Regulation
The current regulation knob allows for fine-tuning of the charging current if manual adjustment is desired. For most applications, the automatic settings are sufficient.
Completion of Charging
The display will indicate "NO load or full charged" when the battery has reached a full charge or if no battery is connected. The charger will then switch to a maintenance (trickle) mode to prevent overcharging.
6. Maintenance
Proper maintenance ensures the longevity and performance of your charger.
- Cleaning: Disconnect the charger from power and battery before cleaning. Wipe the exterior with a soft, dry cloth. Do not use solvents or abrasive cleaners.
- Cable Inspection: Regularly inspect the power cord and battery clamps for any signs of damage, fraying, or corrosion. Replace damaged components immediately.
- Storage: Store the charger in a cool, dry place away from direct sunlight and moisture when not in use. Ensure cables are neatly coiled.
7. Troubleshooting
If you encounter issues, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger does not turn on. | No power from outlet; damaged power cord. | Check the AC outlet with another device. Inspect the power cord for damage. |
| "NO load or full charged" message appears, but battery is not charged. | Poor connection to battery; battery is severely discharged or faulty. | Ensure clamps are securely connected to clean battery terminals. If the battery is deeply discharged, it may require a specialized recovery process or replacement. |
| Charger gets hot during operation. | Normal operation; blocked cooling fan. | Some heat is normal. Ensure the cooling fan at the rear is not blocked and has adequate airflow. If overheating persists, discontinue use and contact support. |
| Charging is slow. | Battery capacity is very large; current regulation knob set too low. | Charging time varies with battery size. Ensure the current regulation knob is set appropriately. |
8. Specifications
Technical specifications for the BounceyCart 400W 12/24V Portable Battery Charger.

Figure 8.1: Diagram illustrating the approximate dimensions of the battery charger: 180mm width, 145mm depth, and 70mm height, excluding the handle.
- Brand: BounceyCart
- Model Number: 45e06708-0f02-472a-b106-8c67505ea5e1
- Product Dimensions (D x W x H): 5.6" x 7.24" x 3.54" (approximately 145mm x 180mm x 70mm)
- Input Voltage: 110-250 Volts AC
- Output Voltage: 12 Volts / 24 Volts DC (Automatic Recognition)
- Current Rating: 30 Amps (Max)
- Power: 400W
- Applicable Battery Types: 12.6V Lithium Battery, 12V/24V Ordinary (Lead-Acid) Battery
9. Warranty and Support
Warranty Information
This BounceyCart product comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accident, unauthorized modification, or improper installation.
Customer Support
For technical assistance, warranty claims, or any questions regarding your BounceyCart battery charger, please refer to the contact information provided with your purchase or visit the official BounceyCart website.