Noco GX4820, GX3626, GX2440 User Manual

GXSeries

User Guide

DANGER

PRIOR TO USE, READ AND UNDERSTAND
PRODUCT SAFETY INFORMATION.
Failure to follow the instructions may result
in ELECTRICAL SHOCK, EXPLOSION,
or FIRE, which may result in SERIOUS
INJURY, DEATH, DAMAGE TO DEVICE or
PROPERTY. Do not discard this information.

Welcome. Thank you for buying a NOCO Genius

GX Series Smart Charger. Read and understand the
User Guide before operating the charger. For questions
regarding our chargers, view our comprehensive support
information at www.no.co/support. To contact NOCO for
personalized support (not available in all areas), visit
www.no.co/connect.

What’s In The Box.

• GX Series Smart Charger

• AC Cable

• User Guide

• Information Guide and Warranty

®

Contacting NOCO.

1.800.456.6626

Phone:

[e-mail]

Email:

Mailing Address:

About GX Series Chargers. The NOCO Genius

Series of chargers represents some of the most innovative
and advanced technology on the market, making each
charge simple and easy. The GX is designed for charging all
types of 24V, 36V or 48V lead-acid and lithium-ion battery
systems, including Wet (Flooded), Gel, MF (Maintenance­Free), CA (Calcium), EFB (Enhanced Flooded Battery), AGM
(Absorption Glass Mat), and LIB (Lithium Ion) batteries. It
is suitable for charging battery capacities from 25 to 500
Amp-Hours and maintaining all battery sizes.

Getting Started. Before using the charger, carefully

read the battery manufacturer’s specific precautions and
recommended rates of charge for the battery. Make sure
to determine the voltage and chemistry of the battery by
referring to your battery owner’s manual prior to charging.

Mounting. The GX Series Chargers have four (4) external

holes for mounting. Make sure there are no obstructions
behind the mounting surface. It is important to keep in mind
the distance to the battery. Allow for 12-inches (304mm) of
slack in cables between connections.

Charging Modes. The GX Series Chargers have seven

(7) modes: Standby, NORM, COLD/AGM, AGM+, LI-ION,
REPAIR and SUPPLY. Some charge modes must be
pressed and held for three (3) seconds to enter the mode.
These “Press and Hold” modes are advanced charging
modes that require your full attention before selecting. It
is important to understand the differences and purpose
of each charge mode. Do not operate the charger until
you confirm the appropriate charge mode for your battery.
Below is a brief description:

30339 Diamond Parkway, #102
Glenwillow, OH 44139
United States of America

®

GX

Basic Charging Modes

Voltage and current depend on model of charger.
Specifications for each model are listed below.

Mode Explanation

In Standby mode, the charger is not
charging or providing any power to
the battery. Energy Save is activated

Standby

NORM

GX2440

GX3626

GX4820

COLD/

AGM

GX2440

GX3626

GX4820

CAUTION:

ALWAYS VERIFY THE VOLTAGE OF A BATTERY
SYSTEM BEFORE ATTEMPTING TO CHARGE.
ONLY USE THE GX SERIES CHARGER THAT IS
DESIGNED FOR THE SAME VOLTAGE AS YOUR
BATTERY SYSTEM.

during this mode, drawing microscopic
power from the electrical outlet. When
selected, an orange LED will illuminate.

No Power

For charging Wet Cell, Gel Cell,
Enhanced Flooded, Maintenance-Free
and Calcium batteries. When selected,
a white LED will illuminate.

28.8V ± 0.3V | 40A ± 1A

43.2 +/- 0.45V | 26A ± 1A

57.6V +/- 0.6V | 20A ± 1A

For charging batteries in cold
temperatures below 50ºF (10ºC) or
AGM batteries. When selected, a blue
LED will illuminate.

29.4V ± 0.3V | 40A ± 1A

44.1V +/-0.45V | 26A ± 1A

58.8V +/-0.6V | 20A ± 1A

222

Advanced Charging Modes

IMPORTANT: Advanced Charge Modes are modes that
require the users full attention when selecting.

Mode Explanation

AGM+

Press & Hold

GX2440

GX3626

GX4820

LI-ION

Press & Hold

GX2440

GX3626

GX4820

REPAIR

Press & Hold

GX2440

GX3626

GX4820

SUPPLY

Press & Hold

GX2440

GX3626

GX4820

For charging advanced AGM batteries,
which requires a higher than normal
charging voltage. When selected, a
blue LED will illuminate.

31.2V ± 0.3V | 40A ± 1A

46.8V +/- 0.4V | 26A ± 1A

62.4V +/-0.6V | 20A ± 1A

For charging lithium-ion batteries,
including lithium iron phosphate. When
selected, a blue LED will illuminate.

29.2V ± 0.3V | 40A ± 1A

43.8V +/-0.45V | 26A ± 1A

58.4V +/- 0.6V | 20A ± 1A

An advanced battery recovery mode
for repairing and storing, old, idle,
damaged, stratified or sulfated
batteries. When selected, a red LED
will illuminate and flash.

32V ± 0.3V | 5A ± 1A

48V +/-0.45V | 5A ± 1A

64V +/-0.6V | 5A ± 1A

Converts to a DC power supply. When
selected, a red LED will illuminate.

27.2V ± 0.3V | 20A ± 1A

40.8V +/-0.45V | 13A ± 1A

54.4V +/-0.6V | 10A ± 1A

Using AGM+. [Press & Hold]

AGM+ charge mode is designed for advanced AGM
batteries only. Advanced AGM batteries are a new
battery technology. These batteries accept a higher than
normal charging voltage. AGM+ charge mode is NOT
suitable for traditional AGM batteries. Consult the battery
manufacturer before using this mode.

CAUTION. USE THIS MODE WITH CARE. THIS MODE
IS FOR LEAD-ACID ADVANCED AGM BATTERIES
ONLY. THIS MODE USES A HIGH CHARGING VOLTAGE
AND MAY CAUSE SOME WATER LOSS IN WET
(FLOODED) CELL BATTERIES OR OVERCHARGE IN
SOME BATTERIES.

Using LI-ION. [Press & Hold]

LI-ION charge mode is for lithium-ion batteries only,
including lithium iron phosphate batteries.

CAUTION. THIS MODE IS FOR LITHIUM BATTERIES
ONLY. LITHIUM-ION BATTERIES ARE MADE AND
CONSTRUCTED IN DIFFERENT WAYS AND SOME MAY
OR MAY NOT CONTAIN A BATTERY MANAGEMENT
SYSTEM (BMS). CONSULT THE LITHIUM BATTERY
MANUFACTURER BEFORE CHARGING AND ASK FOR
RECOMMENDED CHARGING RATES AND VOLTAGES.
SOME LITHIUM-ION BATTERIES MAY BE UNSTABLE
AND UNSUITABLE FOR CHARGING.

Using Repair. [Press & Hold]

Repair is an advanced battery recovery mode 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 Repair in
attempt to reverse these problems. For optimal results,
take the battery through a full charge cycle, bringing the
battery to full charge, before using this mode. Repair can

444