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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.
The NOCO Genius® G750 represents some of the most innovative and advanced technology on the market, making each charge simple and easy. It is quite possibly the safest and most efficient charger you will ever use. The G750 is designed for charging all types of 6V & 12V lead-acid batteries, including Wet (Flooded), Gel, MF (Maintenance-Free), CA (Calcium), EFB (Enhanced Flooded Battery), and AGM (Absorption Glass Mat) batteries. It is suitable for charging battery capacities from 2 to 30 AmpHours and maintaining all battery sizes.
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.
The G750 is a direct wall plug-in charger, and it is important to keep in mind the distance to the battery. The DC cable length from the charger, with either the battery clamp or eyelet terminal connectors, is approximately 148-inches (3750mm). Allow for 12-inches (304mm) of slack between connections.
The G750 has three (3) modes: Standby, 12V NORM, and 6V NORM. 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. "Press and Hold" are indicated on the charger by a red line. 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:
Mode | Explanation |
Standby | In Standby mode, the charger is not charging or providing any power to the battery. Energy Save is activated during this mode, drawing microscopic power from the electrical outlet. When selected, an orange LED will illuminate. |
No Power | |
12V NORM | For charging 12-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. When selected, a white LED will illuminate. |
14.5V | 750mA | 2-30Ah Batteries | |
6V NORM Press & Hold | For charging 6-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. When selected, a white LED will illuminate. |
7.25V | 750mA | 2-30Ah Batteries |
Using 6V NORM. [Press & Hold]
6V NORM charge mode is designed for 6-volt leadacid batteries only, like Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. Consult the battery manufacturer before using this mode.
THIS MODE IS FOR 6-VOLT LEAD-ACID BATTERIES ONLY.
Do not connect the AC power plug until all other connections are made. Identify the correct polarity of the battery terminals on the battery. The positive battery terminal is typically marked by these letters or symbol (POS,P,+). The negative battery terminal is typically marked by these letters or symbol (NEG,N,-). Do not make any connections to the carburetor, fuel lines, or thin, sheet metal parts. The below instructions are for a negative ground system (most common). If your vehicle is a positive ground system (very uncommon), follow the below instructions in reverse order.
The charger has one (1) Charge LED. This Charge LED indicates the connected battery(s) state-of-charge (SOC). See the explanation below:
LED | Explanation |
Pulsing Red LED | The Charge LED will slowly pulse "on" and "off" when the battery is less than 75% fully charged. |
Pulsing Green LED | The Charge LED will slowly pulse "on" and "off" when the battery is less than 90% charged. |
Solid Green LED | When the battery is 100% charged, the Charge LED will be solid green. |
Maintenance Green LED | During maintenance charging, the 100% Charge LED will pulse "on" and "off" slowly. When the battery is topped off and fully charged again, the 100% Charge LED will turn solid green. The charger can be left connected to the battery indefinitely. |
Advanced Diagnostics is used when displaying Error Conditions. It will display a series of blink sequences that help you identify the cause of the error and potential solutions.
All Error Conditions are displayed with the Error LED and Standby LED flashing back and forth. The number of flashes between each pulse denotes a potential Error Condition (except reverse polarity and low-voltage battery).
Error | Reason/Solution |
Single Flash | Battery will not hold a charge. Have battery checked by a professional. |
Double Flash | Possible battery short. Have battery checked by a professional. |
Triple Flash | Battery voltage is too high for the selected charge mode. Check the battery and charge mode. |
Error LED Solid Red | Reverse polarity. Reverse the battery connections. |
Standby Solid Orange | Battery voltage is too low for charge to detect or charger is in supply. Jumpstart the battery to raise the battery voltage. |
Memory
Returns to last selected mode when restarted
Interactive
Alters the charging process based on organic battery feedback
Recovery
Applies a high-voltage pulse charge when lowvoltage, sulfation or lost capacity is detected
Safe
Protects against reverse polarity, sparks, overcharging, overcurrent, open-circuits, short-circuits and overheating
Fast
Charges two times faster than traditional battery chargers
Compensation
Adjusts for varying A/C line voltage for consistent charging
Rugged
Dirt, water, UV, impact and crush resistant
Compact
High-frequency energy conversion for ultra-compact, lightweight and portable charger
Start-Stop
Counteracts increased cyclic energy demands placed on batteries in micro-hybrid vehicles
Firewall
Multi-level safety barrier that prevents abnormal and unsafe conditions
Optimization
Stabilizes internal battery chemistry for increased performance and longevity
Maintenance Plus
Keeps the battery fully charged without overcharging allowing the charger to be safely connected indefinitely
Energy Save
Minimizes energy consumption when full power is not needed
Load Tracking
Charge LEDs dynamically track the batteries state-of-charge when a load outpaces the charge current
Diagnostics
Intuitive visual diagnostic tool for detecting reverse polarity, low-voltage or damaged batteries
CANBUS
Automatically enables the charging port to charge CANBUS systems
Thermal Monitor
Internal temperature sensors adjust charge based on ambient climate
Step 1 & 2: Analyze & Diagnose
Checks the battery's initial condition, including voltage, state-of-charge and health, to determine if the battery is stable before charging.
Step 3: Recovery
Initializes the Recovery desulfation process (if needed) for deeply discharged or sulfated batteries by pulsing small amounts of current.
Step 4: Initialize
Starts the charging process with a gentle (soft) charge.
Step 5: Bulk
Begins the Bulk charging process based on the condition of the battery and returns 80% of the battery's capacity.
Step 6: Absorption
Brings the charge level to 90% by delivering small amounts of current to provide a safe, efficient charge. This limits battery gassing and is essential to prolonging battery life.
Step 7: Optimization
Finalizes the charging process and brings the battery to maximum capacity. In this step, the charger utilizes multi-layered charging profiles to fully recapture capacity and optimize the specific gravity of the battery for increased run time and performance. The charger will switch to Maintenance if the battery tells the charger that more current is needed.
Step 8: Maintenance
Continuously monitors the battery to determine when a maintenance charge should be initiated. If the battery voltage falls below its target threshold, the charger will restart the Maintenance cycle until voltage reaches its optimal state and then discontinues the charge cycle. The cycle between Optimization and Maintenance is repeated indefinitely to keep the battery at full charge. The battery charger can be safely left connected indefinitely without the risk of overcharging.
The estimated time to charge a battery is shown below. The size of the battery (Ah) and its depth of discharge (DOD) greatly affect its charging time. The charge time is based on an average depth of discharge to a fully charged battery and is for reference purposes only. Actual data may differ due to battery conditions. The time to charge a normally discharged battery is based on a 50% DOD.
Battery Size Ah | Approx. Time to Charge In Hours | |
6V | 12V | |
8 | 5.3 | 5.3 |
12 | 8.0 | 8.0 |
18 | 12.0 | 12.0 |
24 | 16.0 | 16.0 |
30 | 20.0 | 20.0 |
Input Voltage AC: | 110-120 VAC, 50-60Hz |
Working Voltage AC: | 85-130 VAC, 50-60Hz |
Efficiency: | 85% Approx. |
Power: | 13W Max |
Charging Voltage: | Various |
Charging Current: | 750mA (12V), 750mA (6V) |
Low-Voltage Detection: | 2V (12V), 2V (6V) |
Back Current Drain: | <5mA |
Ambient Temperature: | 0°C to +40°C |
Charger Type: | 8 Step, Smart Charger |
Type of Batteries: | 6V & 12V |
Battery Chemistries: | Wet, Gel, MF, CA, EFB, AGM. |
Battery Capacity: | 2-30Ah (12V), 2-30Ah (6V), Maintains All Battery Sizes |
Housing Protection: | IP60 |
Cooling: | Natural Convection |
Dimensions (L x W x H): | 4.45 x 2.67 x 1.54 Inches |
Weight: | 0.49 Pounds |
Phone: 1.800.456.6626
Email: support@no.co
Mailing Address: 30339 Diamond Parkway, #102; Glenwillow, OH 44139; United States of America
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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