# NOCO GENIUS1: smart charger 1A (6/12V)

![NOCO GENIUS1: smart charger 1A (6/12V)](https://bateriasonline.es/4373-home_default/noco-genius1-smart-charger-1a-6-12v.jpg)

> NOCO GENIUS1: 1 A for 6V and 12V batteries up to 30 Ah, lead-acid or lithium with BMS. When it is all you need and when the GENIUS2 or GENIUS5 fits better.

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

- **Canonical URL**: https://bateriasonline.es/en/noco-genius1-smart-charger-1a-6-12v
- **Language**: en
- **Brand**: NOCO
- **Reference**: BOL-NOCO-GENIUS1EU
- **EAN**: 1210000619242
- **MPN**: GENIUS1EU
- **Last updated**: 2026-11-10

## Quick description

The smallest GENIUS: 1 A for 6V or 12V batteries up to 30 Ah. A natural maintainer for motorbikes, scooters and lawn mowers.
- 1 A at 6V and 12V
- Batteries up to 30 Ah
- Lead-acid and 12V lithium
- Force Mode down to 0 V
- 0.35 kg, IP60 housing

## Description

## NOCO GENIUS1: smart charger 1A (6/12V)

Pick the NOCO GENIUS1 if your battery is a small one: a motorbike, scooter, lawn mower or quad with up to 30 Ah. At 1 A it is not meant to bring a flat car battery back every day; its job is keeping a battery healthy while the vehicle sits for weeks.
Above 30 Ah, look at the GENIUS2 (2 A, up to 40 Ah) or, for cars, the GENIUS5 (5 A, up to 120 Ah, with Repair mode). Neither of the two small models has Repair mode.
In return the GENIUS1 is the most compact of the family: 92 x 59 x 32 mm and 0.35 kg, with 6V, 12V, AGM and Lithium modes.

### Features

- •   Delivers 1 A on both 6V and 12V batteries.
- •   Designed for batteries up to 30 Ah.
- •   Handles wet, gel, MF, EFB, AGM and calcium lead-acid.
- •   Lithium mode for 12V batteries with BMS, LiFePO4 included.
- •   Starts charging from 1 V; Force Mode reaches batteries at 0 V.
- •   Adapts the charge to ambient temperature.
- •   M6 eyelet terminals for a permanent hook-up.
- •   IP60 housing, 92 x 59 x 32 mm.

### Technical data

| Mains input voltage | 100-240 VAC, 50-60 Hz |
|---|---|
| Output power | 15 W max. |
| Charging current | 1 A (12 V) / 1 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 30 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 | IP60 |
| Cooling | Natural convection |
| Approx. charging time (50% depth of discharge) | 20 Ah: 15 h · 40 Ah: 30 h · 100 Ah: 75 h |
| Dimensions (L x W x H) | 92 x 59 x 32 mm |
| Weight | 0.35 kg |

### In the box

- •   GENIUS1 battery charger
- •   Battery clamps with integrated eyelet terminals (M6)
- •   User guide and warranty

### Common questions

Can it charge a car battery?
It can maintain one, but that is not its strength: a half-flat 40 Ah battery takes about 30 h at 1 A. For cars, the GENIUS5 is the better pick.
Can I leave it on all winter?
Yes, it is designed to stay connected without overcharging and remembers the last mode used.
What does it lack compared with the GENIUS5?
Repair mode and power: the GENIUS5 delivers 5 A and covers up to 120 Ah.

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