GENIUS4 Support

Advanced Diagnostics.

GENIUS4

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.

GENIUS4

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.

GENIUS4

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.

FAQ

GENIUS4

Charging

What is the power consumption of Genius4?

GENIUS4

60 Watts (Max)

What battery voltages are GEN & GENPRO compatible with?

NOCO GEN & GENPRO chargers are compatible with 12V batteries, including all types of 12V lead-acid and lithium-ion batteries.

What are the charging times for Genius4?

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

	GENIUS4
20 Amp Hour Motorcycle Battery	3.75 hours
40 Amp Hour Lawn Mower Battery	7.5 hours
80 Amp Hour Full-Size Car Battery	15 hours
100 Amp Hour Truck Battery	18.75 hours
120 Amp Hour Diesel Truck Battery	22.25 hours

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

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.

Charge Modes

How do I change modes on Genius4?

When plugged into AC power NOCO Genius will start out in Standby Mode. Press the Mode Button to switch between modes. Follow the link below to learn how to change modes on GENIUS5, which has the same modes as GENIUS4.

GENIUS4

How to Change Modes on GENIUS4

How do I use Force Mode on Genius4?

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. Follow the link below to learn how to use Force Mode on GENIUS5, which has the same modes as GENIUS4.

How to Use Force Mode

What is Repair Mode on Genius4?

Repair Mode is an advanced battery recovery mode found on GENIUS4 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. Use to link below to learn about Repair mode on the GENIUS5, which has the same modes as the GENIUS4.

Using Repair Mode on Genius4

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.

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.

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 Genius4 weigh?

GENIUS4

1.50 lbs (0.68 kg)

What type of fuse does Genius4 charger use?

The fuse is a Mini® Blade fuse which can be purchased at hardware or automotive stores.

GENIUS4

10 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

Troubleshooting

Where can I obtain the user manual for Genius4?

GENIUS4

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.

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: