NEXPEAK 10-Amp Car Battery Charger User Manual

1. Introduction

Thank you for choosing the NEXPEAK 10-Amp Car Battery Charger. This smart, fully automatic charger and maintainer is designed to efficiently charge and repair 12-volt and 24-volt lead-acid batteries, including AGM, GEL, SLA, and Flooded types. Its advanced features ensure optimal performance and safety for a wide range of vehicles, including cars, trucks, SUVs, motorcycles, lawn mowers, boats, and marine applications.

2. Safety Instructions

WARNING: Read all safety warnings and instructions before using this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.

• Always wear eye protection when working with batteries.
• Ensure adequate ventilation during charging to prevent gas buildup.
• Do not smoke or allow sparks or flames in the vicinity of the battery or charger.
• Disconnect the AC power cord from the outlet before connecting or disconnecting the battery clamps.
• Connect the red (+) clamp to the positive battery terminal and the black (-) clamp to the negative battery terminal or vehicle chassis away from the battery.
• Avoid short-circuiting the clamps.
• Keep the charger and cables away from water, oil, and extreme temperatures.
• This charger is not designed to jump-start a completely dead battery. It is a charger and maintainer.
• Do not attempt to charge non-rechargeable batteries.

3. Package Contents

• NEXPEAK 10-Amp Battery Charger Unit
• Battery Clamps (Red and Black)
• User Manual

4. Product Features

4.1. 10-Amp Quick Charger

This 12V 10-Amp and 24V 5-Amp 7-stage quick battery charger and maintainer offers significantly faster charging speeds compared to 8-Amp or 5-Amp automatic chargers. It is designed to charge or repair all 12-volt and 24-volt lead-acid automotive, marine, and deep-cycle batteries, including AGM, GEL, SLA, and Flooded types.

Image: NEXPEAK charger demonstrating high-speed quick charge for a car battery.

4.2. Smart Protections & Temperature Compensation

Equipped with 8 multiple protections including smart control, temperature compensation for hot or cold climates, reverse polarity protection, cooling system, overcurrent, fireproof material, overcharge, and short circuit protection. This ensures safe charging and maintenance, preventing battery failure, especially during extended periods of non-use.

Image: Visual representation of the 8 smart protection features.

Image: Temperature compensation feature for optimal charging in summer and winter conditions.

4.3. High-Efficiency Pulse Repair

The charger detects battery sulfation and acid stratification, utilizing a pulse repair function to restore lost battery performance. This can lead to stronger engine starts and extended battery cycle life. Note: This function cannot activate or charge totally dead batteries.

4.4. Visualized Charging & Easy Operation

A large LCD display shows real-time charging and battery status, including charge voltage, current, internal temperature, and charge percentage. The touch mode selection makes it convenient to switch between different battery types and modes.

Image: Large LCD display for clear and convenient monitoring of charging status.

4.5. Plug and Play Simplicity

No complicated steps are required; simply plug and charge. This all-in-one solution functions as a battery charger, battery maintainer, trickle charger, and battery desulfator, making it an essential tool for any garage.

4.6. Float/Trickle Charge Mode

The charger can switch to float/trickle charge mode to maintain batteries over extended periods, such as during winter storage. After fully charging the battery in the corresponding mode (STD/AGM,GEL/WET/MOTORCYCLE), switch to "MOTORCYCLE" mode to automatically enter trickle charging mode.

5. Setup

1. Connect Battery Clamps: Connect the red (+) clamp to the positive terminal of the battery. Connect the black (-) clamp to the negative terminal of the battery or to the vehicle chassis away from the battery.
2. Plug into Power: Plug the charger's AC power cord into a standard wall outlet (100-240V AC).
3. Select Mode: The charger will automatically detect the battery voltage (12V or 24V). Use the "Mode Selection" button to choose the appropriate charging mode for your battery type (STD, AGM/GEL, WET, MOTORCYCLE) or the Repair mode if needed.

6. Operating Instructions

6.1. 7-Stage Charging Process

The charger employs a sophisticated 7-stage charging process to optimize battery health and longevity:

1. Desulfurization: Applies high-frequency pulse current to break down lead sulfate crystals.
2. Trickle Charging: Initial low-current charge for deeply discharged batteries.
3. Constant Current Charging: Charges the battery at a constant maximum current until voltage reaches a set level.
4. Constant Voltage Charging: Charges at a constant voltage while current gradually decreases.
5. Battery Current Detection: Monitors battery current to ensure optimal charge.
6. Compensation Charging: Provides a small current to compensate for self-discharge.
7. Floating Charging: Maintains the battery at full charge without overcharging.

Image: Detailed diagram of the 7-stage charging process.

6.2. Mode Selection

Press the "Mode Selection" button to cycle through the available modes:

• STD (Standard): For standard lead-acid batteries.
• AGM/GEL: For AGM and Gel batteries.
• WET: For wet cell batteries.
• MOTORCYCLE: For motorcycle batteries (also used for trickle charging after full charge).
• REPAIR: For pulse repair function to recondition sulfated batteries.

6.3. Visualized Charging Display

The large LCD screen provides clear information:

• Voltage (V): Current battery voltage.
• Current (A): Charging current.
• Temperature (°C/°F): Ambient temperature for compensation.
• Charge Percentage: Battery charge level (20%, 40%, 60%, 80%, 100%).
• Mode Indicator: Shows the currently selected charging mode.

6.4. Official Product Videos

7. Maintenance

• Keep the charger clean and dry. Wipe with a soft, dry cloth.
• Inspect cables and clamps regularly for any signs of damage or wear. Replace if necessary.
• Store the charger in a cool, dry place when not in use.
• For long-term battery storage, utilize the trickle charge mode to maintain optimal battery health.

8. Troubleshooting

9. Specifications

10. Warranty and Support

A new replacement is available for any quality issue within 2 years from the date of purchase.

For further assistance, troubleshooting, or warranty claims, please contact NEXPEAK customer support through the retailer's platform or the official NEXPEAK website.