# NOCO GEN5X1 12V 5A 1-bank on-board battery charger IP68

![NOCO GEN5X1 12V 5A 1-bank on-board battery charger IP68](https://baterias.com/20471-home_default/charger-noco-gen5x1.jpg)

> NOCO GEN5X1 12V 5 A waterproof IP68 on-board charger for boats. Lead-acid and lithium batteries up to 120 Ah, with repair mode and Force Mode down to 0 V.

**Category:** [Battery chargers](https://baterias.com/gb/battery-chargers) → [NOCO](https://baterias.com/gb/noco)

- **Canonical URL**: https://baterias.com/gb/charger-noco-gen5x1
- **Language**: en-GB
- **Brand**: NOCO
- **Reference**: BCOM-NOCO-GEN5X1
- **MPN**: GEN5X1
- **Last updated**: 2026-10-28
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | NOCO |
| Reference | GEN5X1 |
| Model | NOCO GEN |
| Voltage (V) | 12 V |
| Largo | 117 mm |
| Ancho | 74 mm |
| Alto | 48 mm |
| Peso | 0.84 kg |
| Load capacity | 120 Ah |
| Current (A) | 5 |

## Quick description

**NOCO GEN5X1 12V 5A** is a multi-stage automatic charger: it reads the battery, charges it at the right current and switches to maintenance without overcharging, with protection against reverse polarity, short circuit and overcharge. Highlights: Waterproof IP68 on-board charger, 1 bank of 5 A at 12V, 12V lead-acid and lithium batteries.

### Why this charger?

- **Smart charging** reads the battery and adjusts current in several stages
- **Full protection** against overcharge, reverse polarity and short circuit
- **Automatic maintenance** switches to float and keeps the battery topped up without overcharging

🔌 Voltage
12V

⚡ Charging current
5 A

🔋 Recommended battery
120 Ah

💡 Power
72 W

🔌 Input
100-240 VAC, 50-60 Hz

🛡️ Protection
IP68

📐 Dimensions
117×74×48 mm

⚖️ Weight
0.84 kg

## Description

## NOCO GEN5X1 12V 5A 1-bank on-board battery charger IP68

The NOCO GEN5X1 is a waterproof 12V on-board charger with one 5 A bank, designed for boats, pontoons, jet skis, fishing boats, sailing boats and motorboats. Its fully sealed IP68 housing is built for demanding marine environments and can be mounted in any orientation, with an anti-vibration backing.
It charges 12V lead-acid batteries (wet, gel, MF, EFB, AGM and calcium) and lithium batteries with BMS up to 120 Ah. It offers 12V, AGM, Lithium and Repair modes, detects batteries from 1 V, includes Force Mode for batteries at 0 V and adjusts charging to the ambient temperature. It can stay connected permanently with no risk of overcharging.

### Features

- Fully sealed, waterproof on-board charger, IP68 rated
- One 5 A output for 12V batteries
- For 12V lead-acid batteries: wet, gel, MF, EFB, AGM and calcium
- 12V lithium mode for batteries with BMS, including LiFePO4
- Repair mode for old, sulphated or stratified batteries
- Detects batteries from 1 V; Force Mode for batteries below 1 V
- Thermal compensation prevents undercharging in the cold and overcharging in the heat
- Mounts in any orientation, even upside down, with anti-vibration backing
- Can stay connected permanently without overcharging, with auto-memory
- Diagnostics for reverse polarity, bad battery and high voltage

### Technical data

| Mains input voltage | 100-240 VAC, 50-60 Hz |
|---|---|
| Output power | 72 W max. |
| Charging banks | 1 |
| Charging current | 5 A (12 V) |
| Battery voltage | 12 V |
| Battery chemistries | Lead-acid (wet, gel, MF, calcium, EFB, AGM) and 12V lithium with BMS (incl. LiFePO4) |
| Battery capacity | Up to 120 Ah; maintains all battery sizes |
| Charging modes | 12V, 12V AGM, 12V Lithium, Repair and Force |
| Low-voltage detection | 1 V (Force Mode: 0 V) |
| Back current drain | < 0.5 mA |
| Operating temperature | -20 °C to +40 °C |
| Housing protection | IP68 |
| Cooling | Natural convection |
| DC cable length | approx. 1.83 m |
| Approx. charging time (50% depth of discharge) | 20 Ah: 3 h · 40 Ah: 6 h · 100 Ah: 15 h · 120 Ah: 18 h |
| Dimensions (L x W x H) | 117 x 74 x 48 mm |
| Weight | 0.84 kg |

### In the box

- GEN5X1 on-board charger
- 2 x #8 27 mm self-tapping screws
- User guide and warranty

## Frequently asked questions

### Which batteries can this charger charge?

12 V batteries with a capacity of 120 Ah: conventional lead-acid, EFB, AGM and GEL. Check first that your battery voltage matches the charger.

### How long does it take to charge a battery?

As a guide, the time from flat is the battery capacity (Ah) divided by the charger current (5 A), plus 20 %: a 100 Ah battery takes about 24 hours. If it is only half discharged, half that time.

### Can I leave it connected to the battery?

Automatic chargers switch to maintenance when they finish and can be left connected. If maintenance charging is not listed in this model's specifications, disconnect it when charging is complete.

### Do I need to remove the battery to charge it?

No, it is usually charged in place: with the engine and ignition off, connect the red clamp to the positive (+) and the black one to the negative (−) or to a metal part of the chassis, then plug in the charger. When finished, unplug it before removing the clamps. Do it in a ventilated place.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

---
*baterias.com — Automotive batteries · 2026-11-07*