Sarrera
The NOCO GEN5X2 is a state-of-the-art, fully-sealed, and waterproof onboard battery charger designed for optimal performance in marine environments. It provides 10 amps of total charging power, split into 5 amps per bank, making it ideal for charging and maintaining two independent 12-volt lead-acid or lithium-ion batteries simultaneously. This manual provides essential information for the safe and effective operation of your GEN5X2 charger.
Kutxan dagoena

This image displays the complete contents included with your NOCO GEN5X2 charger. It shows the main charger unit, the DC cables with eyelets, the AC power cable, and the mounting screws, along with the user guide.
- GEN5X2 10A 2-Bank Smart Waterproof Onboard Marine Battery Charger and Battery Maintainer (120-240VAC)
- Onboard Marine Battery Charger User Guide
- (2) Black Truss-Head Screws for mounting
Ezaugarri nagusiak
- Trinkoa eta indartsua: The GEN5X2 is 37% smaller and 43% more powerful than its predecessor, designed for peak performance in harsh marine environments.
- Multi-Bank Charging: Features two independent banks, each providing 5 amps, guztira 10 amps. This allows simultaneous charging of two 12V batteries in marine, boat, starter, and deep-cycle systems.
- Versatile Charging Modes: Offers selectable modes for each bank: 12V (for wet cell, gel, maintenance-free, calcium), 12V AGM, 12V Lithium (for LiFePO₄ with BMS), and 12V Repair Mode (for sulfated batteries).
- Precision Charging with Thermal Compensation: An integrated thermal sensor automatically adjusts charging based on ambient temperature, preventing overcharging in hot conditions and undercharging in cold conditions.
- Bateria hilaren berreskurapena: Capable of charging batteries from as low as 1 volt. Force Mode allows manual initiation of charging for deeply discharged batteries down to zero volts.
- Redefined Mounting System: Designed for fast and secure installation in any orientation, including upside down, with an integrated anti-vibration backing to isolate shock and noise.
- Diseinu iragazgaitza: Fully-sealed with an IP68 rating, engineered to withstand thousands of hours underwater in the harshest marine conditions.
- Funtzionamendu automatikoa: Provides year-round, all-weather charging. Features Zero Overcharge protection, allowing it to be left plugged in 24/7 without risk of overcharging. Auto Memory automatically returns to the last selected mode after power loss.
Konfigurazioa
Before initial use, ensure the charger is properly installed and connected. The GEN5X2 is designed for permanent onboard installation.
Instalazio urratsak:
- Aukeratu muntaketa-kokapen bat: Select a secure, dry, and well-ventilated location near the batteries. The charger can be mounted in any orientation.
- Kargagailua ondo lotu: Use the provided mounting screws to firmly attach the charger to the chosen surface. The anti-vibration backing helps reduce noise and shock.
- Connect DC Cables: For each bank, connect the positive (+) eyelet terminal (red) to the positive battery terminal and the negative (-) eyelet terminal (black) to the negative battery terminal. Ensure connections are tight and secure.
- Konektatu AC Power: Plug the AC power cable into a suitable 120-240VAC outlet.

This image illustrates the multi-bank connection setup of the NOCO GEN5X2, showing how each bank connects independently to a 12V battery, such as a starter battery and a deep cycle battery. It highlights the 5A output per bank for a total of 10A.
Funtzionamendu-argibideak
The GEN5X2 operates automatically once connected. Follow these steps to select charging modes and understand the indicators.
Kontrol-panela ulertzea:

This diagram details the control panel of the NOCO GEN5X2, showing the Mode button, voltage indicators, error LEDs, and charge status LEDs for each bank. It explains the function of each indicator and button.
- Modu botoia: Press to cycle through available charging modes (12V, 12V AGM, 12V Lithium, Repair Mode).
- Karga LED: Indicates the connected battery's state of charge.
- Egonean LED: Illuminates when the charger is in Standby Mode, not charging.
- Error LEDs: Indicate overvoltage, bad battery, or reverse polarity.
Kargatzeko prozesua:
- Piztu: Once connected to AC power and batteries, the charger will automatically begin charging in the last used mode (Auto Memory).
- Aukeratu modua: Press the "MODE" button for each bank to select the appropriate charging mode for your battery type. Hold the "MODE" button for 3 seconds to enter Repair Mode.
- Jarraitu aurrerapena: The Charge LEDs will illuminate to indicate the battery's state of charge. When fully charged, the charger will switch to maintenance mode.
- Force Mode (for dead batteries): If a battery is below 1 volt, the charger may not detect it. Press and hold the "MODE" button for 3 seconds to activate Force Mode, which manually begins charging from zero volts.

This image demonstrates the "Force Mode" feature, showing a multimeter reading 0.00V on a battery and a hand pressing the mode button on the charger. This mode allows the GEN5X2 to manually begin charging severely discharged batteries that other chargers might not detect.

This image highlights the automatic and worry-free aspects of the NOCO GEN5X2. It shows the charger connected to two batteries in a vehicle, emphasizing year-round charging, zero overcharge protection (safe to leave plugged in 24/7), and auto memory that recalls the last selected mode.
Mantentzea
Proper maintenance ensures the longevity and optimal performance of your NOCO GEN5X2 charger.
- Garbiketa: Periodically clean the charger's exterior with a soft, damp oihal. Ez erabili produktu kimiko gogorrak edo garbitzaile urratzaileak.
- Kableen ikuskapena: Regularly inspect the AC and DC cables for any signs of damage, cuts, or fraying. Replace if damaged.
- Terminal konexioak: Ensure battery terminal connections remain clean and tight to prevent resistance and ensure efficient charging.
- Biltegiratzea: When not in use for extended periods, store the charger in a cool, dry place.

This image highlights the waterproof capabilities of the NOCO GEN5X2, showing the charger submerged in water. It emphasizes its IP68 rating and ability to withstand harsh marine environments, ensuring durability and low maintenance.
Arazoak konpontzea
If you encounter issues with your GEN5X2 charger, refer to the following common troubleshooting steps:
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Kargagailua ez da pizten. | No AC power; faulty connection. | Check AC outlet and cable connections. Ensure power is available. |
| Error LED illuminated. | Overboltage, bad battery, or reverse polarity. | Egiaztatu bateria bolumenatage. Verify correct polarity of connections. If "Bad Battery" error, battery may be beyond recovery or require Repair Mode. |
| Charger not detecting battery (below 1V). | Battery is deeply discharged. | Activate Force Mode by pressing and holding the MODE button for 3 seconds. |
| Slow charging or not reaching full charge. | Incorrect mode selected; extreme temperatures; battery issues. | Ensure correct charging mode is selected. Allow thermal compensation to adjust. Inspect battery health. |
Zehaztapenak

This image presents a detailed table of technical specifications for the NOCO GEN5X1, GEN5X2, and GEN5X3 models, allowing for comparison of input voltage, output power, charging current, low-voltage detection, back current drain, ambient temperature range, battery types, number of banks, battery capacity, cooling method, dimensions, and weight.
| Zehaztapena | Xehetasuna |
|---|---|
| Modelo zenbakia | GEN5X2 |
| Sarrera boltage AC | 120-240 VAC, 50-60Hz |
| Irteera Potentzia | 72W Max (2x2W Max) |
| Karga-korrontea | 5A per bank (10A total) |
| Behe-boltage Detekzioa | 1 V (12 V) |
| Atzeko Korronte Hustubidea | <0.5mA |
| Giro-tenperatura | -20°C eta +50°C (-4°F eta +122°F) |
| Pila motak | 12V Lead-Acid (Wet, Gel, MF, CA, EFB, AGM), Lithium (LiFePO₄) |
| Banku kopurua | 2 |
| Bateria Edukiera | Gehienez 120 Ah, bateriaren tamaina guztiak mantentzen ditu |
| Etxebizitza Babeslea | IP68 |
| Hoztea | Konbekzio naturala |
| Neurriak (L x W x H) | 6.4 x 7.2 x 2.1 hazbete |
| Elementuaren pisua | 4.17 kilo |

This image visually explains the thermal compensation feature, showing the charger operating effectively in both hot (104°F/40°C) and cold (-4°F/-20°C) environments. This feature prevents overcharging in heat and undercharging in cold, optimizing battery performance.
Bermea eta Laguntza
The NOCO GEN5X2 is backed by a 3-year warranty, ensuring peace of mind regarding its quality and performance. For warranty claims, technical support, or additional information, please refer to the official NOCO support channels.
- Berme Epea: Erosketa-datatik 3 urte.
- Laguntza: Visit the official NOCO website for detailed support, FAQs, and contact information.
- Ziurtagiriak: Certified to UL1236, ISO 8846, and 33 CFR 183.410 for safety, ignition protection, and marine compliance.
For the most up-to-date information and support, please visit the NOCOren laguntza Webgunea.





