GENIUS5 Support

Advanced Diagnostics.

GENIUS5

High Voltage

The battery voltage is too high for the selected charge mode. Check the battery and charge mode.

Bad Battery

There is a possible battery short or the battery will not hold a charge. Have the battery checked by a professional.

Reverse Polarity

Charger is connected to the battery in reverse. Reverse the connections.

Standby Mode

The charger is in standby mode or the battery voltage is too low for the charger to detect.

Temperature

All Error LED’s will flash. Internal / external temperature is too high / low. Charger will resume once the temperature is back within operating limits.

Advanced Charging.

GENIUS5

12V Mode

Used for 12V wet cell, gel, enhanced flooded, maintenance- free, & calcium batteries.

12V AGM Mode

Used for 12V AGM batteries.

12V Lithium Mode

Used for 12V lithium- ion batteries (including lithium iron phosphate). Only for batteries with Battery Management Systems (BMS).

6V Mode

Used for 6V wet cell, gel, enhanced flooded, maintenance-free, & calcium batteries.

12V Repair Mode

Used to repair old, idle, damaged, stratified, or sulfated batteries.

Force Mode

Used to charge batteries below 1V. All charge mode LED’s will flash and the selected mode will illuminate.

Charge Levels.

GENIUS5

25% Charged

Pulsing Red 25% - The battery is less than 25% charged.

50% Charged

Pulsing Red 50% - The battery is less than 50% charged.

75% Charged

Pulsing Orange - The battery is less than 75% charged.

100% Charged

Pulsing Green - Bulk Charge complete, optimizing battery for extended life.

Maintenance

Slow Pulsing Green - After the battery is fully charged, the charger will continue to provide ongoing maintenance and optimization until disconnected.

VIDEOS

How to change modes on your NOCO GENIUS5

Learn how to change charging modes on your NOCO GENIUS5 Smart Battery Charger. Easily switch between Standby, 12V, 12V AGM, 12V Lithium, 6V and 12V Repair.

How to use force mode on your NOCO GENIUS5

Learn how to use force mode on your NOCO GENIUS5 Smart Battery Charger. Manually begin charging batteries below 1-volt.

FAQ

GENIUS

Charging

What is the charging current of Genius?

GENIUS1	1 Amp DC
GENIUS2	2 Amps DC
GENIUS5	5 Amps DC
GENIUS10	10 Amps DC
GENIUS2X2	2 Amps DC (2 Banks)
GENIUS2X4	2 Amps DC (4 Banks)
GENIUS2D	2 Amps DC

What is the power consumption of Genius?

GENIUS1	15 Watts (Max)
GENIUS2	30 Watts (Max)
GENIUS5	75 Watts (Max)
GENIUS10	150 Watts (Max)
GENIUS2X2	30 Watts (Max) x 2 Banks
GENIUS2X4	30 Watts (Max) x 4 Banks
GENIUS2D	28 Watts (Max)

What battery voltages is Genius compatible with?

GENIUS1	6V	12V	Wet, Gel, MF, CA, EFB, AGM, Lithium
GENIUS2	6V	12V	Wet, Gel, MF, CA, EFB, AGM, Lithium
GENIUS5	6V	12V	Wet, Gel, MF, CA, EFB, AGM, Lithium
GENIUS10	6V	12V	Wet, Gel, MF, CA, EFB, AGM, Lithium
GENIUS2X2	6V	12V	Wet, Gel, MF, CA, EFB, AGM, Lithium
GENIUS2X4	6V	12V	Wet, Gel, MF, CA, EFB, AGM, Lithium
GENIUS2D	––	12V	Wet, Gel, MF, CA, EFB, AGM

What are the charging times for Genius?

These are approximate charging times for a battery at 50% depth of discharge.

	GENIUS1	GENIUS2*	GENIUS5	GENIUS10
20 Amp Hour Motorcycle Battery	15 hours	7.5 hours	3 hours	1.5 hours
40 Amp Hour Lawn Mower Battery	30 hours	15 hours	6 hours	3 hours
80 Amp Hour Full-Size Car Battery	60 hours	30 hours	12 hours	6 hours
100 Amp Hour Truck Battery	75 hour	37.5 hours	15 hours	6 hours
120 Amp Hour Diesel Truck Battery	90 hours	45 hours	18 hours	9 hours
230 Amp Hour Deep Cycle Battery	––	86.3 hours	34.5 hours	17.3 hours

*Charging times for GENIUS2D, GENIUS2X2, and GENIUS2X4 will be similar to GENIUS2.

Genius isn't detecting the battery, how do I force charging to start?

NOCO Genius is able to detect and charge dead batteries as low as 1-volt. For extremely dead batteries lower than 1-volt, manually turn on Force Mode to detect and charge batteries all the way down to zero volts.

How do I use Force Mode on Genius?

Can I run a load on the battery while charging?

It is not recommended to run a load on the batteries while they are being charged.

Can Genius charge a Lead-Carbon battery?

Genius can be used to charge Lead-Carbon batteries by using 12V Mode.

Which Genius charger is best for my battery?

Selecting the appropriate charger for your battery will depend on its Amp-Hour (Ah) capacity size. This is usually listed on the battery label at the 20-hour rate, for example: “100 AH @ 20HR”. Check your battery for its rated Amp-hour capacity.

GENIUS1	Up to 30 Ah
GENIUS2	Up to 40 Ah
GENIUS5	Up to 120 Ah
GENIUS10	Up to 230 Ah
GENIUS2X2	Up to 40 Ah
GENIUS2X4	Up to 40 Ah
GENIUS2D	Up to 40 Ah

Charge Modes

How do I change modes on Genius?

When plugged into AC power NOCO Genius will start out in Standby Mode. Press the Mode Button to switch between modes.

GENIUS1	How to Change Modes on GENIUS1
GENIUS2	How to Change Modes on GENIUS2
GENIUS5	How to Change Modes on GENIUS5
GENIUS10	How to Change Modes on GENIUS10
GENIUS2X2	How to Change Modes on GENIUS2X2
GENIUS2X4	How to Change Modes on GENIUS2X4
GENIUS2D	––

How do I use Force Mode on Genius?

GENIUS1	How to use Force Mode
GENIUS2	How to use Force Mode
GENIUS5	How to use Force Mode
GENIUS10	How to use Force Mode
GENIUS2X2	How to use Force Mode
GENIUS2X4	How to use Force Mode
GENIUS2D	––

What is Repair Mode on Genius?

Repair Mode is an advanced battery recovery mode found on GENIUS5 and GENIUS10 for repairing and storing, old, idle, damaged, stratified or sulfated batteries. Not all batteries can be recovered. Batteries tend to become damaged if kept at a low charge and/or never given the opportunity to receive a full charge. The most common battery problems are battery sulfation and stratification. Both battery sulfation and stratification will artificially raise the open circuit voltage of the battery, causing the battery to appear fully charged, while providing low capacity. Use 12V Repair in attempt to reverse these problems. For optimal results, take the 12-volt battery through a full charge cycle, bringing the battery to full charge, before using this mode. 12V Repair can take up to four (4) hours to complete the recovery process and will return to Standby when completed.

Using Repair Mode on Genius5

Using Repair Mode on Genius10

CAUTION: USE THIS MODE WITH CARE. THIS MODE IS FOR 12-VOLT LEAD-ACID BATTERIES ONLY. THIS MODE USES A HIGH CHARGING VOLTAGE AND MAY CAUSE SOME WATER LOSS IN WET (FLOODED) CELL BATTERIES. BE ADVISED, SOME BATTERIES AND ELECTRONICS MAY BE SENSITIVE TO HIGH CHARGING VOLTAGES. TO MINIMIZE RISKS TO ELECTRONICS, DISCONNECT THE BATTERY BEFORE USING THIS MODE.

What is Supply Mode on GENIUS10?

Supply Mode, found on GENIUS10, converts the charger to a constant current, constant voltage DC power supply. It can be used for powering any 12VDC device, like a tire inflator, oil changer and more. As a power supply, it can also be used to retain a vehicle’s on-board computer settings during battery repair or replacement. 13.6V Supply provides 13.6-volts at 10A with overload protection at 12A (Max).

Using Supply Mode on Genius10

CAUTION: USE THIS MODE WITH EXTREME CARE. SUPPLY MODE DISABLES SAFETY FEATURES AND LIVE POWER IS PRESENT AT THE CONNECTORS. DO NOT TOUCH CONNECTIONS TOGETHER. RISK OF SPARKS, FIRE, EXPLOSION, PROPERTY DAMAGE, INJURY, AND DEATH.

LEDs

The green LED went straight to flashing instead of going solid, is that normal?

It is normal functionality for Genius to go sometimes go straight to Maintenance Mode after normal charging is complete.

View above to learn more about the Charge LEDs on Genius.

The green LED is flashing, is charging done?

When GeniusPRO has a slowly pulsating green LED it means the charger is in Maintenance Mode. After the battery is fully charged, the charger will continue to provide ongoing maintenance and optimization until disconnected.

Click here to learn more about the Charge LEDs on GeniusPRO25.

Click here to learn more about the Charge LEDs on GeniusPRO50.

What does the Overvoltage Error LED mean?

If the Overvoltage LED is illuminated, this means the battery's voltage is too high for the charge mode that is selected. For example, if you have a 12V battery and have selected a 6V charging mode selected.

All the Error LEDs are flashing. What is wrong?

If the Overvoltage, Bad Battery, and Standby LEDs are flashing together, either the charger's internal temperature is too hot, or the ambient temperature is too cold for operation. If the charger's internal temperature is too hot, the charger will stop displaying the error and resume function after the charger cools down. If the ambient temperature is too cold, the charger will resume function when the ambient temperature rises.

What does it mean when Genius is flashing a charge LED and Standby Mode?

If a charge LED and Standby mode are flashing this means Genius is in Force Mode. After 5 minutes, the charger will return to the normal charge mode operating and low voltage detection will be reactivated.

When in Force Mode all safety features will be disabled.

How do I use Force Mode on Genius?

Specifications

How much does Genius weigh?

GENIUS1	0.77 lbs (0.35 kg)
GENIUS2	1.10 lbs (0.50 kg)
GENIUS5	1.50 lbs (0.68 kg)
GENIUS10	3.33 lbs (1.51 kg)
GENIUS2X2	1.1 lbs (0.5kg)
GENIUS2X4	3.9 lbs (1.77kg)
GENIUS2D	0.50 lbs (0.23 kg)

What type of fuse do Genius chargers use?

Genius uses a Mini® Blade fuse which can be purchased at hardware or automotive stores.

GENIUS1	2 AMP MINI ® Blade Fuse
GENIUS2	4 AMP MINI® Blade Fuse
GENIUS5	10 AMP MINI® Blade Fuse
GENIUS10	20 AMP MINI® Blade Fuse
GENIUS2X2	4 AMP MINI® Blade Fuse
GENIUS2X4	4 AMP MINI® Blade Fuse
GENIUS2D	4 AMP MINI® Blade Fuse

How long is the warranty on Genius?

The warranty is 3 years from the proof of purchase or manufacture date (based on serial number).

Where can I find the serial number on Genius?

All NOCO Genius Chargers are marked with a unique serial identification number, usually found stamped on the side or edge of the unit. Click the link below to find the serial number location on each model.

Locating the Serial Number on Genius

What is the IP rating of Genius?

GENIUS1	IP60
GENIUS2	IP65
GENIUS5	IP65
GENIUS10	IP65
GENIUS2X2	IP60
GENIUS2X4	IP60
GENIUS2D	IP65

Troubleshooting

Where can I obtain the user manual for Genius?

GENIUS1	User Guide
GENIUS2	User Guide
GENIUS5	User Guide
GENIUS10	User Guide
GENIUS2X2	User Guide
GENIUS2X4	User Guide
GENIUS2D	User Guide

My Genius charger is stuck in Standby Mode.

If the Standby LED is illuminated it means that Genius is in Standby Mode and it is not recognizing that it is connected to a battery. This can happen when there is no battery connected to the charger, if the voltage on the battery is lower than the recognition threshold (1V), if the connection to the battery is faulty, or if the inline fuse is faulty or loose in the fuse housing.

How do I use Force Mode on Genius?

Genius is getting hot, is that normal?

Depending on the battery condition and size, Genius can get up to 85°C or 185°F while it is charging the battery. This would be considered normal operating conditions.

What does the Bad Battery Error LED mean?

If the Bad Battery Error LED is illuminated, this means that the battery is not holding a charge, or there may be a short in the battery. We recommend taking the battery into a local battery shop for a thorough evaluation of its health and status.

DO MORE WITH GENIUS

ACCESSORIES.

NOCO GENIUS Battery Chargers are compatible with a variety of accessories to expand your capabilities. Get complete protection with the universal EVA protection case for GENIUS. The following X-Connect accessories are compatible with the all-new GENIUS series: