# NOCO GEN5X2: on-board charger 2 banks 10A (12V)

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> NOCO GEN5X2: IP68 marine charger with 2 isolated 5 A banks for two 12V batteries of up to 120 Ah each. See how it compares with the GEN5X1 and the GENPRO10X2.

**Category:** [Battery chargers](https://bateriasonline.es/en/battery-chargers) → NOCO

- **Canonical URL**: https://bateriasonline.es/en/noco-gen5x2-on-board-charger-two-banks
- **Language**: en
- **Brand**: NOCO
- **Reference**: BOL-NOCO-GEN5X2
- **MPN**: GEN5X2
- **Last updated**: 2026-11-10

## Quick description

Two isolated 5 A banks in an IP68 case: the classic setup for boats with a 12V starting battery and a house battery.
- 2 banks of 5 A
- Up to 120 Ah per bank
- Isolated banks
- IP68, mounts any way up
- 145 W max.

## Description

## NOCO GEN5X2: on-board charger 2 banks 10A (12V)

The NOCO GEN5X2 fits boats with two 12V batteries, typically one for starting and one for the house circuit, each up to 120 Ah. The two banks are isolated and work separately, so every battery gets its own 5 A.
With only one battery, the GEN5X1 is smaller (0.84 kg against 1.89 kg). For batteries over 120 Ah, or if you want double the current per bank, the GENPRO10X2 offers 2 x 10 A and up to 230 Ah per bank.
Each bank offers 12V, AGM, Lithium, Repair and Force modes.

### Features

- •   Two isolated 5 A banks, 10 A total.
- •   Up to 120 Ah per bank.
- •   12V lead-acid and lithium with BMS.
- •   Repair mode for sulphated batteries.
- •   Waterproof IP68, built for marine use.
- •   Adjusts charging in cold and heat.
- •   Measures 163 x 119 x 53 mm.

### Technical data

| Mains input voltage | 100-240 VAC, 50-60 Hz |
|---|---|
| Output power | 145 W max. |
| Charging banks | 2 |
| Current per bank | 5 A (12 V) |
| Total charging current | 10 A |
| 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 per bank; 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) | 163 x 119 x 53 mm |
| Weight | 1.89 kg |

### In the box

- •   GEN5X2 on-board charger
- •   2 x #8 27 mm self-tapping screws
- •   User guide and warranty

### Common questions

Do the banks depend on each other?
No: they are isolated and operate independently, each with its own 5 A.
How long per battery?
About 6 h for 40 Ah from half charge; about 18 h for 120 Ah, per bank.
GEN5X2 or GENPRO10X2?
Up to 120 Ah per battery the GEN5X2 is enough; the GENPRO10X2 gives 10 A per bank and reaches 230 Ah.

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*bateriasonline.es — Batteries and accessories · 2026-11-11*