# NOCO GENIUS2: smart charger 2A (6/12V)

![NOCO GENIUS2: smart charger 2A (6/12V)](https://bateriasonline.es/4383-home_default/noco-genius2-smart-charger-2a-6-12v.jpg)

> NOCO GENIUS2: 2 A for 6V and 12V batteries up to 40 Ah, lead-acid or lithium with BMS, IP65 rated. Compare it with the GENIUS1 and GENIUS5 before choosing.

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

- **Canonical URL**: https://bateriasonline.es/en/noco-genius2-smart-charger-2a-6-12v
- **Language**: en
- **Brand**: NOCO
- **Reference**: BOL-NOCO-GENIUS2EU
- **EAN**: 1210000619259
- **MPN**: GENIUS2EU
- **Last updated**: 2026-11-10

## Quick description

One step up from the GENIUS1: 2 A and up to 40 Ah on 6V or 12V batteries, in an IP65 housing. For motorbikes, quads and small cars that sit idle.
- 2 A at 6V and 12V
- Batteries up to 40 Ah
- IP65 housing
- 12V lithium mode
- 1.96 m DC cable

## Description

## NOCO GENIUS2: smart charger 2A (6/12V)

The NOCO GENIUS2 makes sense if your batteries range from a big motorbike to a small car, as long as they stay within 40 Ah. It doubles the current of the GENIUS1 (2 A versus 1 A) and raises the housing rating to IP65.
It is not the one for quick car charging: NOCO quotes around 60 h for a half-discharged 100 Ah battery. That is the GENIUS5 territory, with 5 A, up to 120 Ah and a Repair mode the GENIUS2 does not offer.
You get 6V, 12V, AGM and Lithium modes, Force Mode for batteries at 0 V and temperature compensation.

### Features

- •   Supplies 2 A to 6V and 12V batteries.
- •   Recommended up to 40 Ah; maintains any size.
- •   Lead-acid: wet, gel, MF, EFB, AGM, calcium.
- •   Lithium mode for 12V with BMS.
- •   Detection from 1 V plus Force Mode.
- •   Pulse charging against sulphation.
- •   IP65 protection, 0.5 kg.

### Technical data

| Mains input voltage | 100-240 VAC, 50-60 Hz |
|---|---|
| Output power | 30 W max. |
| Charging current | 2 A (12 V) / 2 A (6 V) |
| Battery voltage | 6V and 12V |
| Battery chemistries | Lead-acid (wet, gel, MF, calcium, EFB, AGM) and 12V lithium with BMS (incl. LiFePO4) |
| Battery capacity | Up to 40 Ah; maintains all battery sizes |
| Charging modes | 12V, 12V AGM, 12V Lithium, 6V and Force |
| Low-voltage detection | 1 V (Force Mode: 0 V) |
| Back current drain | < 0.5 mA |
| Operating temperature | -20 °C to +40 °C |
| Storage temperature | -30 °C to +60 °C |
| Housing protection | IP65 |
| Cooling | Natural convection |
| DC cable length | approx. 1.96 m |
| Approx. charging time (50% depth of discharge) | 20 Ah: 7.5 h · 40 Ah: 15 h · 100 Ah: 60 h |
| Dimensions (L x W x H) | 94 x 61 x 43 mm |
| Weight | 0.5 kg |

### In the box

- •   GENIUS2 battery charger
- •   Battery clamps with integrated eyelet terminals
- •   2 self-tapping screws
- •   User guide and warranty

### Common questions

How long with a motorbike battery?
For a 20 Ah battery at half charge, roughly 7.5 h according to the maker.
GENIUS2 or GENIUS1?
Above 30 Ah, or if you want IP65, the GENIUS2; for small batteries up to 30 Ah the GENIUS1 is enough.
Does it have Repair mode?
No. If you need it, the GENIUS5 has one.

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