1. Introducció
This manual provides essential instructions for the safe and effective operation, setup, and maintenance of your NEXPEAK NC315 or NC215 15Amp Battery Charger. These chargers are designed for 12V and 24V LiFePO4 and lead-acid batteries, including AGM, GEL, SLA, and Flooded types, commonly found in cars, trucks, SUVs, motorcycles, lawnmowers, and marine applications. Please read this manual thoroughly before using the device.
2. Informació important de seguretat
Always prioritize safety when working with electrical devices and batteries. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Llegeix totes les instruccions: Before operating the charger, read all instructions and cautionary markings on the charger, the battery, and the vehicle or device using the battery.
- Ventilació: Assegureu-vos que la zona de càrrega estigui ben ventilada. Les bateries poden produir gasos explosius durant la càrrega.
- Protecció ocular i cutània: Always wear eye protection and protective clothing when working with batteries. Avoid touching eyes while working near batteries.
- Avoid Sparks and Flames: No fumeu ni permeteu que hi hagi espurnes o flames a prop de la bateria o del motor.
- Desconnecteu l'alimentació: Desconnecteu sempre el cable d'alimentació de CA de la presa de corrent abans de fer o tallar les connexions a la bateria.
- Vol adequattage: Assegureu-vos que el carregador estigui configurat al volum correctetage (12V or 24V) for the battery being charged.
- Equipament danyat: No feu servir el carregador si ha rebut un cop fort, s'ha caigut o s'ha fet malbé d'alguna altra manera.
- Nens: Mantingueu el carregador i les bateries fora de l'abast dels nens.
- Bateries no recarregables: No intenteu carregar bateries no recarregables.
3. Producte acabatview
The NEXPEAK NC315 and NC215 battery chargers are advanced, multi-stage smart chargers designed for efficiency and safety. They feature a large LCD screen for clear visualization of charging status and multiple protection mechanisms.
3.1 Característiques clau
- Càrrega versàtil: Supports 12V 15-Amp and 24V 8-Amp charging for LiFePO4 and lead-acid batteries (AGM, GEL, SLA, Flooded).
- 9-StagCàrrega intel·ligent: An optimized charging process for enhanced battery life and performance.
- Pantalla LCD gran: Displays real-time charging status, voltage, current, internal temperature, and charge percentage.
- Funció de reparació del pols: Automatically detects and repairs battery sulfation and acid stratification to restore performance.
- Proteccions múltiples: Includes smart control, temperature compensation, reverse polarity protection, cooling system, overcurrent, fireproof material, overvoltage, i protecció contra curtcircuits.
- Trickle/Float Mode: Automatically maintains batteries after full charge, ideal for long-term storage.
- Compensació de temperatura: Adjusts charging parameters based on ambient temperature for optimal charging in various climates.
3.2 Components del carregador

Imatge 1: NEXPEAK NC315 (with handle) and NC215 (compact) Battery Chargers. Both models feature a clear LCD display and robust casing.
- Unitat principal: The charger body containing the electronics and display.
- Pantalla LCD: Front panel screen showing charging information.
- Botó de mode: Used to select different charging modes.
- Bateria Clamps: Vermell (+) i negre (-) clamps for connecting to the battery terminals.
- Cable d'alimentació de CA: Per connectar el carregador a una presa de corrent.
4. Especificacions
| Característica | Descripció |
|---|---|
| Entrada Voltage | 100-240V AC, 50/60Hz |
| Vol. De sortidatage | 12V / 24V Auto-sensing |
| Charging Current (12V) | 15 Amps |
| Charging Current (24V) | 8 Amps |
| Corrent de càrrega de goteig | 1.75 Amps (aprox.) |
| Tipus de bateries | LiFePO4, Lead-Acid (AGM, GEL, SLA, Flooded) |
| Carregant Stages | 9-Stage Càrrega intel·ligent |
| Mostra | Pantalla LCD gran |
| Longitud del cable | 10 ft (approx.) |
| Proteccions | Reverse Polarity, Overcurrent, Overcharge, Short Circuit, Overvoltage, Temperature Compensation, Cooling System, Fireproof Material |
5. Configuració i connexió
Follow these steps to safely connect the battery charger to your battery.
- Prepareu la bateria: Ensure the battery terminals are clean and free of corrosion. If charging a battery in a vehicle, ensure the vehicle is turned off and in park/neutral with the parking brake engaged.
- Connecta Red Clamp: Connect the RED (+) positive charger clamp al terminal positiu (+) de la bateria.
- Connectar Negre Clamp: Connect the BLACK (-) negative charger clamp to the negative (-) battery terminal. If connecting to a vehicle battery, connect the black clamp al xassís del vehicle lluny de la bateria i la línia de combustible.
- Connecteu-vos a l'alimentació: Plug the AC power cord into a standard wall outlet. The charger will power on and begin its initial detection process.

Imatge 2: Proper connection of the NEXPEAK battery charger to a lead-acid battery, showing the red clamp on the positive terminal and the black clamp on the negative terminal.
6. Instruccions de funcionament
Once connected, the charger will automatically detect the battery voltage (12V or 24V). Use the 'MODE' button to select the appropriate charging program.
6.1 Selecció del mode

Imatge 3: The charger's LCD screen displaying various charging modes, including Lead-acid/LiFePO4, Pulse Repair, Summer Mode, and Trickle Charger options.
Premeu el botó MODE button to cycle through the available charging programs:
- ESTÀNDARD (ESTÀNDARD): For standard 12V/24V lead-acid batteries (Flooded, GEL, SLA, AGM).
- LiFePO4: Specifically for 12V/24V Lithium Iron Phosphate batteries.
- MOTO: A lower current charge mode suitable for smaller 12V motorcycle batteries.
- TKL (Trickle Charge): For long-term maintenance of batteries, keeping them at optimal charge.
- REPAIR (Pulse Repair): A specialized mode to desulfate and recondition old or deeply discharged lead-acid batteries. This mode cannot activate completely dead batteries.
The charger also features automatic temperature compensation, adjusting charging parameters for optimal performance in both summer and winter conditions.
6.2 9-Stage Smart Charging Process
The charger employs a sophisticated 9-stage charging process to ensure efficient and safe charging, maximizing battery life.

Imatge 4: A visual representation of the 9-stage smart charging process, detailing each step from battery detection to monitoring.
- Detecció de bateria: Analyzes battery condition and type.
- Battery Desulphation: Applies high-frequency pulses to break down lead sulfate crystals.
- Soft Start Charging: Gradually increases current to prevent damage to deeply discharged batteries.
- Càrrega massiva: Carrega la bateria fins a aproximadament el 80% de la seva capacitat amb el corrent màxim.
- Absorption Charging: Charges the battery to 100% capacity at a decreasincorrent g.
- Prova de la bateria: Checks if the battery can hold a charge.
- Recondition Charging: Further reconditions the battery to improve performance.
- Float & Maintenance Charging: Manté la bateria a plena càrrega amb un corrent baix.
- Monitoring Stage: Continuously monitors battery voltage and initiates charging if needed.
6.3 Informació de la pantalla LCD
The large LCD screen provides real-time feedback on the charging process.

Imatge 5: The charger's LCD screen displaying key charging metrics: current (Amps), voltage (Volts), and internal temperature (Fahrenheit).
La informació que es mostra inclou:
- Charge Current (A): The current flowing into the battery.
- Volum de càrregatage (V): El voltage de la bateria.
- Inside Temperature (°F/°C): The internal temperature of the charger, used for temperature compensation.
- Percentatge de càrregatage: An estimate of the battery's charge level.
- Indicadors de mode: Icons for selected mode (e.g., STD, LiFePO4, Motorcycle, Trickle, Repair).
- Indicadors d'estat: Icons for summer/winter mode, full charge, error warnings.
7. Manteniment
7.1 Charger Maintenance
- Neteja: Disconnect the charger from power before cleaning. Wipe the exterior with a soft, damp tela. No utilitzeu dissolvents.
- Emmagatzematge: Store the charger in a cool, dry place when not in use. Keep cables neatly coiled.
- Inspecció: Periodically inspect the power cord, output cables, and clamps for any damage. Do not use if damaged.
7.2 Manteniment de la bateria
- Neteja de terminals: Keep battery terminals clean and free of corrosion for optimal connection.
- Fluid Levels (Flooded Batteries): For flooded lead-acid batteries, check electrolyte levels regularly and top up with distilled water if necessary (before charging).
- Emmagatzematge a llarg termini: For batteries stored for extended periods, use the Trickle Charge mode to maintain their charge.

Imatge 6: The NEXPEAK charger operating in trickle charge mode, ideal for maintaining batteries in unused vehicles such as idle cars, boats, or lawnmowers.
8. Solució De Problemes
Si teniu problemes amb el carregador, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| El carregador no s'encén | No hi ha alimentació de CA; Presa de corrent defectuosa; Cable d'alimentació danyat. | Check AC power connection; Try a different outlet; Inspect power cord for damage. |
| No charging activity | Incorrect battery connection; Battery too deeply discharged; Incorrect mode selected. | Assegureu-vos que clamps are securely connected to correct terminals; Battery may be beyond repair (not activated by pulse repair); Select appropriate mode. |
| Missatge d'error a la pantalla LCD | Reverse polarity; Short circuit; Overvoltage/Overcurrent. | Desconnectar i tornar a connectar clamps correctly; Check for short circuits in cables/battery; Ensure battery voltage matches charger setting. |
| El carregador s'escalfa | Normal during high current charging; Poor ventilation. | Some heat is normal. Ensure adequate ventilation around the charger. If excessively hot or smoking, disconnect immediately. |
| Pulse Repair mode not working | Battery is completely dead or severely damaged. | The pulse repair function cannot activate totally dead batteries. Consider battery replacement. |
9. Garantia i Suport
NEXPEAK products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official NEXPEAK weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.