Introduction

The Noco Jump Starter GeniusS2 is a compact and powerful battery booster designed to jump-start 12-volt batteries quickly and safely. With a peak current of 400 amps, it can revive dead batteries in seconds, making it ideal for cars, trucks, and motorcycles. This jump starter features built-in safety protections against overcharging and reverse polarity, ensuring user safety. Priced at approximately $99.95, it offers a reliable solution for emergency roadside assistance.

Technical Specifications

Input Voltage AC: 120-240 VAC, 50-60Hz
Working Voltage AC: 120-240 VAC, 50-60Hz
Output Power: 30W Max
Charging Voltage: Various
Charging Current: 2A (12V), 2A (6V)
Low-Voltage Detection: 1V (12V), 1V (6V)
Back Current Drain: <5mA
Ambient Temperature: -20°C to +40°C
Type of Batteries: 6V & 12V
Battery Chemistries: Wet, Gel, MF, CA, EFB, AGM, Lithium.
Battery Capacity: Up to 40Ah, Maintains All Battery Sizes
Housing Protection: IP65
Cooling: Natural
Dimensions (L x W x H): 3.7 x 2.4 x 1.7 Inches
Weight: 1.1 Pounds

Description

The Noco Jump Starter GeniusS2 is a compact yet powerful device that packs a punch. Its rugged design ensures durability, making it suitable for various environments. The device comes with multiple safety features, including overcharge protection, short-circuit protection, and reverse polarity protection, ensuring safe operation. The included LED flashlight with SOS mode and red light adds an extra layer of utility, making it useful in emergency situations.

The GeniusS2 also features a high-capacity lithium-ion battery that can be recharged quickly via the USB-C port. This versatility allows users to charge their devices on the go, making it an essential tool for both daily use and emergency situations.

How To Use Noco Jump Starter GeniusS2

Charging Modes

The GENIUS2 has six (6) modes: Standby, 12V, 12V AGM, 12V LITHIUM, 6V and Force. Some charge modes must be pressed and held for three (3) to five (5) 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. Always check with battery manufacturer to confirm the right charge mode for your specific battery. Do not operate the charger until you confirm the appropriate charge mode for your battery.

Below is a brief description:

Mode	Explanation (Peak Voltage Measured At 25°C, Amperage Rating Is Bulk Amperage When Above 0°C)
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. Canbus is enabled in Standby mode. When in Standby, the orange Standby LED will illuminate.
	No Power
12V	For charging 12-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. When selected, the 12V white LED will illuminate.
	14.5V \| 2A \| Up To 40Ah Batteries
12V AGM	For charging 12-volt AGM batteries. When selected, the 12V AGM white LED will illuminate.
	14.8V \| 2A \| Up To 40Ah Batteries
12V LITHIUM	For charging 12-volt lithium-ion batteries, including lithium iron phosphate. When selected, the 12V Lithium blue LED will illuminate. For use on batteries with Battery Management Systems (BMS) only.
	14.6V \| 2A \| Up To 40Ah Batteries
6V Press & Hold (3 Seconds)	For charging 6-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. When selected, the 6V white LED will illuminate.
	7.25V \| 2A \| Up To 40Ah Batteries
Force Mode Press & Hold (5 Seconds)	For charging batteries with a voltage lower than 1V. Press and Hold for five (5) seconds to enter Force Mode. The selected charge mode will then operate under Force Mode for five (5) minutes before returning to standard charging in the selected mode.
	2A \| Up To 40Ah Batteries

Using 6V. [Press & Hold for 3 seconds]
6V charge mode is designed for 6-volt lead-acid batteries only, like Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. Press and hold for three (3) seconds to enter 6V Charge Mode. Consult the battery manufacturer before using this mode.
Using 12V Lithium
12V Lithium charge mode is designed for 12-volt lithium-ion batteries only, including lithium iron phosphate.
CAUTION
USE THIS MODE WITH EXTREME CARE. THIS MODE SHOULD ONLY BE USED WITH 12-VOLT LITHIUM BATTERIES THAT HAVE A BUILT-IN BATTERY MANAGEMENT SYSTEM (BMS). 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.

Force Mode [Press & Hold for 5 seconds]
Force mode allow the charger to manually begin charging when the connected battery’s voltage is too low to be detected. If battery voltage is too low for the charger to detect, press and hold the mode button for 5 seconds to activate Force Mode, then select the appropriate mode. All available modes will flash. Once a charge mode is selected, the Charge Mode LED and Charge LED will alternate between each other, indicating Force Mode is active. After five (5) minutes the charger will return to the normal charge operation and low voltage detection will be reactivated.
CAUTION
USE THIS MODE WITH EXTREME CARE. FORCE MODE DISABLES SAFETY FEATURES AND LIVE POWER IS PRESENT AT THE CONNECTORS. ENSURE ALL CONNECTIONS ARE MADE PRIOR TO ENTERING FORCE MODE, AND DO NOT TOUCH CONNECTIONS TOGETHER. RISK OF SPARKS, FIRE, EXPLOSION, PROPERTY DAMAGE, INJURY, AND DEATH.

Connecting to the Battery

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.

Connect the positive (red) battery clamp or eyelet terminal connector to the positive (POS,P,+) battery terminal.
Connect the negative (black) battery clamp or eyelet terminal connector to the negative (NEG,N,-) battery terminal or vehicle chassis.
Connect the battery charger into a suitable electrical outlet. Do not face the battery when making this connection.
When disconnecting the battery charger, disconnect in the reverse sequence, removing the negative first (or positive first for positive ground systems).

Begin Charging

Verify the voltage and chemistry of the battery.
Confirm that you have connected the battery clamps or eyelet terminal connectors properly and the AC power plug is plugged into an electrical outlet.
First time use: The charger will begin in Standby mode, indicated by an orange LED. In Standby, the charger is not providing any power.
Press the mode button to toggle to the appropriate charge mode (press and hold for three seconds to enter an advanced charge mode) for the voltage and chemistry of your battery.
The mode LED will illuminate the selected charge mode and the Charge LEDs will illuminate (depending on the health of the battery) indicating the charging process has started.
The charger can now be left connected to the battery at all times to provide maintenance charging.

Auto-Memory: The charger has built in auto-memory and will return to the last charge mode when connected. To change modes after the first use, press the mode button.

Charging Times

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. Temperature will also impact charging times. The GENIUS2 features thermal compensation that automatically adjusts charging profiles to maximize charging performance.

Battery Size Ah	Approx. Time to Charge In Hours 6V 12V
8	3.0	3.0
12	4.5	4.5
18	6.75	6.75
24	9.0	9.0
40	15.0	15.0

Setup Guide

Setting up and using the Noco Jump Starter GeniusS2 is straightforward:

Charging the Device: Plug the USB-C cable into the device and connect the other end to a wall adapter or any USB port to charge the jump starter.
Connecting to the Vehicle: Attach the clamps to the car battery terminals (red to positive, black to negative) and press the power button on the jump starter.
Starting the Vehicle: Turn the ignition key or press the start button on your vehicle. If it doesn't start immediately, allow the jump starter to provide power for a few seconds and try again.
Disconnecting: Once the vehicle is started, remove the clamps in reverse order (black from negative, red from positive).

Understanding Charge LEDs

LED	Explanation
25% Red LED	The 25% Charge LED will slowly pulse “on” and “off”, when the battery is less than 25% fully charged. When the battery is 25% charged, the red Charge LED will be solid.
50% Red LED	The 50% Charge LED will slowly pulse “on” and “off”, when the battery is less than 50% fully charged. When the battery is 50% charged, the red Charge LED will be solid.
75% Orange LED	The 75% Charge LED will slowly pulse “on” and “off”, when the battery is less than 75% fully charged. When the battery is 75% charged, the orange Charge LED will be solid.
100% Green LED	Pulsing Green LED - Bulk charge complete, optimizing battery for extended life. Solid Green LED - When the battery is 100% charged, the Charge LED will be solid green.
Maintenance Green LED	After the battery is fully charged, the charger will continue monitoring the battery, and provide ongoing maintenance and optimization. The 100% Charge LED will pulse “on” and “off” slowly during these cycles. The charger can be left connected to the battery indefinitely.

Understanding Error LEDs

Error Conditions will be indicated by the following LEDs.

LED	Reason/Solution
Solid	Charger is in Standby mode or Battery voltage is too low for charger to detect.
Solid	Battery voltage is too high for the selected charge mode. Check the battery and charge mode.
Solid	Possible battery short / Battery will not hold a charge. Have battery checked by a professional.
Solid	Reverse polarity. Reverse the battery connections.
Flashing	Charger internal temperature too high / Charger will resume function once the Charger internal temperature drops. Charger ambient temperature too cold / Charger will resume function once the Charger ambient temperature rises.

Noco Jump Starter GeniusS2 Troubleshooting

Here are common issues and their solutions:

No Power Output: Check if the device is fully charged. Ensure all connections are secure and correct.
Overheating: Avoid using the jump starter in extreme temperatures. Ensure proper ventilation around the device.
Safety Warnings: Never touch both clamps together or to any metal part of the vehicle to avoid short circuits.

Pros & Cons

Pros:

Compact and Portable: Easy to carry in your vehicle or bag.
Multifunctional: Serves as a jump starter, power bank, and flashlight.
High Capacity: Multiple jump starts on a single charge.
Safety Features: Advanced protection against overcharge, short circuits, and reverse polarity.

Cons:

Cost: May be more expensive than basic jump starters.
Bulkier than Some Alternatives: Though compact, it may still take up some space in your vehicle.
Charging Time: May require several hours to fully charge the device.

Customer Reviews

Customers praise the Noco Jump Starter GeniusS2 for its reliability and ease of use. Many have reported successful jump starts in various weather conditions. However, some users have noted that the device can be heavier than expected and may require longer charging times compared to other models.

Common complaints include occasional issues with the LED flashlight not functioning as expected and the need for more detailed instructions in the user manual.

3-Year Hassle-Free Warranty

NOCO warrants that this product (the “Product”) will be free from defects in material and workmanship for a period of Three (3) years from the date of purchase (the “Warranty Period”). For defects reported during the Warranty Period, NOCO will, at its discretion, and subject to NOCO’s technical support analysis, either repair or replace defective products. Replacement parts and products will be new or serviceably used, comparable in function and performance to the original part and warranted for the remainder of the original Warranty Period.

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