Charged Reviews

Quick reference

NOCO GENIUS5 6V/12V 5A Battery Charger and Maintainer

Model: GENIUS5 · SKU: GENIUS5

Prepared Nov 12, 2026

Report an issue

Find a specification

Common specifications

Charger input	Not documented
Input voltage	100-240 VAC, 50-60HzNeeds confirmationSource See note below[2]
Solar input voltage	Not documented
Solar input limit	Not documented
Output voltage	VariousSource [1, 2]
Battery voltage	6V, 12VSource [2]
Charge current	5 ASource [1]
Battery chemistry	Lead-Acid and Lithium (LiFePO4): Wet (Flooded), Gel, MF (Maintenance-Free), CA (Calcium), EFB (Enhanced Flooded Battery), AGM (Absorption Glass Mat), and 12V lithium-ion including lithium iron phosphate (BMS required)Source [1, 2]
Power	75 WSource [1]
Isolated	Not documented
Engine detection	Not documented
Weight	0.68 kg1.5 lb convertedSource [1]
Enclosure volume	Not documented
Warranty term	Not documented

All recorded specifications

Battery chemistry	Lead-Acid and Lithium (LiFePO4): Wet (Flooded), Gel, MF (Maintenance-Free), CA (Calcium), EFB (Enhanced Flooded Battery), AGM (Absorption Glass Mat), and 12V lithium-ion including lithium iron phosphate (BMS required)Documented claim Conditions The datasheet prints "CHEMISTRY: Lead-Acid and Lithium". The user guide states: "The GENIUS5 is designed for charging all types of 6V & 12V lead-acid batteries, including Lithium (LiFePO4), Wet (Flooded), Gel, MF (Maintenance-Free), CA (Calcium), EFB (Enhanced Flooded Battery), and AGM (Absorption Glass Mat) batteries." The 12V LITHIUM mode description adds that it is "for charging 12-volt lithium-ion batteries, including lithium iron phosphate" and "For use on batteries with Battery Management Systems (BMS) only." Location: Datasheet CHEMISTRY field; user guide About GENIUS5 paragraph and 12V LITHIUM mode description The datasheet prints "CHEMISTRY: Lead-Acid and Lithium". The user guide states: "The GENIUS5 is designed for charging all types of 6V & 12V lead-acid batteries, including Lithium (LiFePO4), Wet (Flooded), Gel, MF (Maintenance-Free), CA (Calcium), EFB (Enhanced Flooded Battery), and AGM (Absorption Glass Mat) batteries." The 12V LITHIUM mode description adds that it is "for charging 12-volt lithium-ion batteries, including lithium iron phosphate" and "For use on batteries with Battery Management Systems (BMS) only." Location: Datasheet CHEMISTRY field; user guide About GENIUS5 paragraph and 12V LITHIUM mode description Official warranty · NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name)Official datasheet · NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name) [1, 2]
Battery voltage	6V, 12VDocumented claim Conditions The Charging Modes table lists 12V, 12V AGM, 12V LITHIUM and 6V modes. Location: User guide, How To Use / Charging Modes table The Charging Modes table lists 12V, 12V AGM, 12V LITHIUM and 6V modes. Location: User guide, How To Use / Charging Modes table Official warranty · NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name) [2]
Charge current	5 ADocumented claim Conditions Printed as "CHARGING CURRENT: 5A (12V), 5A (6V)" in the datasheet. The user guide's Charging Modes table prints the same 5A rating for the 12V LITHIUM mode. Location: Datasheet, TECHNICAL SPECIFICATIONS block, CHARGING CURRENT Printed as "CHARGING CURRENT: 5A (12V), 5A (6V)" in the datasheet. The user guide's Charging Modes table prints the same 5A rating for the 12V LITHIUM mode. Location: Datasheet, TECHNICAL SPECIFICATIONS block, CHARGING CURRENT Official datasheet · NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name) [1]
Input voltage	100-240 VAC, 50-60HzNeeds confirmationThe NOCO GENIUS5 User Guide & Warranty prints "Input Voltage AC: 100-240 VAC, 50-60Hz"; the NOCO GENIUS5 datasheet prints "LINE VOLTAGE AC: 120-240 VAC, 50-60Hz". Conditions Printed as "100-240 VAC, 50-60Hz" in NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name), User guide, technical specifications, Input Voltage AC. Revised on 1 October 2026: The GENIUS5 user guide, which outranks the datasheet, prints 100-240 VAC, 50-60Hz as the input voltage. Location: User guide, technical specifications, Input Voltage AC Printed as "100-240 VAC, 50-60Hz" in NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name), User guide, technical specifications, Input Voltage AC. Revised on 1 October 2026: The GENIUS5 user guide, which outranks the datasheet, prints 100-240 VAC, 50-60Hz as the input voltage. Location: User guide, technical specifications, Input Voltage AC Official warranty · NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name) [2]
Output voltage	VariousDocumented claim Conditions The datasheet prints "CHARGING VOLTAGE: Various". The user guide's Charging Modes table prints the per-mode peak voltage (measured at 25 degrees C): 12V mode 14.5V, 12V AGM 14.8V, 12V LITHIUM 14.6V, 6V 7.25V. Location: Datasheet, TECHNICAL SPECIFICATIONS block, CHARGING VOLTAGE; user guide How To Use / Charging Modes table The datasheet prints "CHARGING VOLTAGE: Various". The user guide's Charging Modes table prints the per-mode peak voltage (measured at 25 degrees C): 12V mode 14.5V, 12V AGM 14.8V, 12V LITHIUM 14.6V, 6V 7.25V. Location: Datasheet, TECHNICAL SPECIFICATIONS block, CHARGING VOLTAGE; user guide How To Use / Charging Modes table Official warranty · NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name)Official datasheet · NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name) [1, 2]
Power	75 WDocumented claim Conditions Printed as "OUTPUT POWER: 75 Watts Max". Location: Datasheet, TECHNICAL SPECIFICATIONS block, OUTPUT POWER Printed as "OUTPUT POWER: 75 Watts Max". Location: Datasheet, TECHNICAL SPECIFICATIONS block, OUTPUT POWER Official datasheet · NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name) [1]
Weight	0.68 kg1.5 lb convertedDocumented claim Conditions Printed as "UNIT WEIGHT: 1.5 lbs (0.68 kg)"; the kilogram figure is NOCO's own printed conversion. Location: Datasheet, TECHNICAL SPECIFICATIONS block, UNIT WEIGHT Printed as "UNIT WEIGHT: 1.5 lbs (0.68 kg)"; the kilogram figure is NOCO's own printed conversion. Location: Datasheet, TECHNICAL SPECIFICATIONS block, UNIT WEIGHT Official datasheet · NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name) [1]

Warranty

Term years	3 yearsDocumented claim Conditions Printed as "NOCO Three (3) Year Limited Warranty". Location: User guide, Warranty section heading Printed as "NOCO Three (3) Year Limited Warranty". Location: User guide, Warranty section heading Official warranty · NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name) [2]

Certificate records

ETL Listed (Intertek)	Claimed · Listed when checkedApplies to: equipment listing Printed as a mark on the datasheet's certification row: an "ETL LISTED US" shield mark with "Intertek" beneath it, alongside FCC, RoHS, UN38.3, IP65 and CE marks. The datasheet prints no certificate or file number. NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name) [1]

Sources and revisions

NOCO GENIUS5 6V & 12V 5A datasheet (dated 02.21.2024 in its file name)Official datasheet · Revision 02.21.2024 · Checked Sep 26, 2026https://no.co/media/wysiwyg/downloads/brochures/Genius/genius5_data_sheet_02.21.2024_1.pdf
NOCO GENIUS5 User Guide & Warranty (dated 4.18.2024a in its file name)Official warranty · Revision 4.18.2024a · Checked Sep 26, 2026https://no.co/media/wysiwyg/downloads/User_Guides/Genius/genius5na_user_guide_4.18.2024a.pdf