NOCO Genius1 6V/12V 1A Smart Battery Trickle Charger Maintainer Desulfator
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The NOCO GENIUS1 is a 1A smart battery charger, maintainer and desulfator for 6V and 12V lead-acid and lithium batteries. It charges batteries up to 30Ah and maintains any battery size. It is part of the NOCO Genius smart charger range.
This listing is the GENIUS1 (1A). The NOCO Genius range is also available in GENIUS2 (2A) and GENIUS5 (5A).
Key specifications
- Output: 1A DC
- Battery voltages: 6V and 12V
- Chemistry: lead-acid and lithium
- Battery types: AGM, CA, EFB, gel, lithium, MF and wet
- Capacity: charges up to 30Ah, maintains all battery sizes
- Mains input: 120–240V AC, 50–60Hz
- Dead battery charging: from 1V, or down to 0V in force mode
- Protection: short-circuit, open-circuit, overheating, overcharge, spark-proof, reverse polarity
- IP rating: IP60
Multi-voltage, multi-chemistry, multi-battery type
The GENIUS1 charges 6V and 12V lead-acid and lithium-ion batteries across multiple chemistries — flooded, gel, maintenance-free and AGM — and battery types including starter, deep-cycle, marine and powersport.
Powerful, efficient and compact
High-frequency switch-mode technology converts AC power into safe DC power efficiently. An onboard microcomputer controls the charging process precisely, minimising power loss and keeping the unit extremely compact.
Improved start voltage sensor and force mode for dead batteries
The start-voltage sensor detects and charges dead batteries down to 1V. For batteries below 1V, force mode can be activated manually to charge batteries all the way down to 0V.
Year-round charging, zero overcharge, completely automatic
The GENIUS1 is fully automatic from start to finish — no special modes or technical knowledge required. It safely charges any compatible battery, detects damaged batteries, repairs them automatically and monitors continuously for long-term maintenance. There is no risk of overcharging.
Bring batteries back to life: auto detection and auto repair
The GENIUS1 automatically detects sulphation and acid stratification. Where found, it repairs and reverses the damage, extending battery life and restoring performance.
Redesigned clamps with improved clamping range and force
The clamps feature needle-nose profiles for smaller terminal applications and detachable integrated eyelets for permanent mounting directly to the battery. They are designed to fit terminals of any shape and size, with improved clamping range, clamping force and higher conductivity.
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Specification
| Operating Requirements Line Voltage | 120V to 240V AC Frequency: 50Hz to 60Hz Operating Temperature: -4° to 104°F(-20° to 40°C) Storage Temperature: -22° to 140°F(-30° to 60°C) Relative Humidity: 0 to 95% Non-Condensing |
|---|---|
| Charging Current | 1 Amps DC Voltages: 6 Volts 12 Volts |
| Chemistry | Lead-Acid and Lithium Types: AGM CA EFB Gel Lithium MF Wet Capacity Range: Up to 30 Amp-Hours Maintenance: All Battery Sizes |
| Power Consumption | 15 Watts (Max) Efficiency: 85% (120VAC) / 83% (230VAC) |
| Safety Short-Circuit | Yes Open-Circuit: Yes Overheating: Yes Overcharge: Yes |
| Spark-Proof | Yes Reverse Polarity: Yes |
| Product Size Height | 3.62in (92mm) Width: 2.32in (59mm) Depth: 1.26in (32mm) Weight: 0.77lb (0.35kg) |
More specs
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What's Included
- GENIUS1 Battery Charger w/ Interchangeable Connector
- Clamps w/ Integrated Eyelets (M6)
- User Guide & Warranty Information
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About the NOCO GENIUS1
From our tech experts at CEN
The NOCO GENIUS1 is the smallest charger in the Genius range: a 1A smart charger, maintainer and desulfator for 6V and 12V lead-acid and lithium batteries. It charges batteries up to 30Ah and will maintain any size, and it can recover a battery from as low as 1V, or 0V in force mode.
Who it suits
Owners of motorcycles, mowers, classics and other small or seasonal batteries that need keeping topped up while they stand. For a car battery that needs a proper charge rather than maintenance, step up to the GENIUS2 or GENIUS5.
Our tech experts advise
It is fully automatic, so you can connect it and leave it over winter. The clamps have integrated M6 eyelets, which you can fit to the terminals so plugging in takes seconds. It weighs just 0.35kg and is rated IP60. The GC040 case keeps it and its leads together.
Explore the full NOCO range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all NOCO
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Frequently Asked Questions
Q: What size batteries can the NOCO GENIUS1 charge?
A: The GENIUS1 charges 6V and 12V batteries up to 30Ah and can maintain batteries of all sizes. For larger batteries that need charging rather than maintaining, the GENIUS5 or GENIUS10 is the better choice.
Q: Can the NOCO GENIUS1 charge a completely flat battery?
A: Yes. Its start-voltage sensor detects and charges dead batteries as low as 1 volt, and for batteries below 1 volt you can manually turn on force mode to charge all the way down to zero volts.
Q: Can I leave the GENIUS1 connected to my battery long term?
A: Yes. It is fully automatic with zero risk of overcharging, actively monitors the battery for long-term maintenance, and the clamps have detachable integrated M6 eyelets for permanent connection.
Q: Does the NOCO GENIUS1 charge lithium batteries?
A: Yes. It charges lithium batteries as well as lead-acid types including AGM, CA, EFB, gel, MF and wet batteries.
Q: What is included with the NOCO GENIUS1?
A: The GENIUS1 battery charger with interchangeable connector, clamps with integrated M6 eyelets, and the user guide and warranty information.
