Genius 2D - Battery charger NOCO - Free user manual and instructions

Product type	Smart battery charger
Brand	NOCO
Model	Genius 2D
AC input voltage	110-240 V, 50-60 Hz
Input voltage range	90-264 VAC, 50-60 Hz
Charge current (12V)	2000 mA
Charge voltage (12V Normal mode)	14.5 V
Maximum battery capacity	40 Ah (12V) / maintain all sizes
Compatible battery types	12V lead-acid: Wet, Gel, MF, CA, EFB, AGM, Calcium
Low voltage detection	1 V
Standby current	<0.5 mA
Efficiency	87%
Maximum power	28 W
Protective housing	IP65
Cooling	Natural convection
Dimensions (L x W x H)	127 x 58 x 38 mm
Weight	0.2 kg
Operating temperature	-20°C to +60°C
Storage temperature	-20°C to +100°C
Number of charging modes	2 automatic modes (Standby, 12V Normal)
LED indicators	Charge (red/green), Error, Hot, Standby
Advanced diagnostics	Reverse polarity, faulty battery, short circuit, overvoltage
Warranty	3 years (hassle-free)
Included accessories	Mounting bracket, velcro strap, eyelet terminals, clamps

Frequently Asked Questions - Genius 2D NOCO

How to charge a battery installed in the vehicle?

Follow the connection steps for negative ground vehicle: connect the RED clamp to the positive terminal, then the BLACK clamp to a metal ground away from the battery. Then plug the charger into the mains.

What to do if the Error LED lights up?

The Error LED indicates reverse polarity or battery voltage too low. Check connections and polarity. If the problem persists, the battery may be faulty.

What is the charging time for a battery?

For a 40 Ah battery at 50% discharge, the estimated time is about 10 hours. Times vary depending on battery capacity and condition.

Can I leave the charger connected permanently?

Yes, the charger can remain plugged in to maintain the battery. It automatically switches to maintenance mode once fully charged.

Which battery types are compatible?

The Genius 2D is compatible with 12V lead-acid batteries: wet, gel, MF, calcium, EFB, and AGM. Not suitable for lithium batteries.

What does the flashing green LED mean?

The flashing green LED indicates the battery is charged between 75% and 100% and charge optimization is in progress. This is normal.

At what temperature can I use the charger?

The charger operates between -20°C and +60°C. Outside this range, the Hot LED lights up and charging stops.

How to clean the charger?

Unplug the charger. Clean with a soft, lint-free cloth. Avoid moisture entering the openings.

What to do if the charger gets wet?

Immediately disconnect from the battery and the outlet. Cease all use and contact NOCO. Do not use a wet charger.

Is the charger waterproof?

Yes, the housing is rated IP65, protecting against water splashes. Do not immerse it and avoid prolonged exposure to rain.

USER MANUAL Genius 2D NOCO

User Guide & Warranty

READ AND UNDERSTAND ALL SAFETY INFORMATION BEFORE USING THIS PRODUCT. Failure to follow these safety instructions may result in ELECTRICAL SHOCK, EXPLOSION, FIRE, which may result in a SERIOUS INJURY, DEATH, or PROPERTY DAMAGE.

Electrical Shock. Product is an electrical device that can shock and cause serious injury. Do not cut power cords. Do not submerge in water or get wet.

Explosion. Unmonitored, incompatible, or damaged batteries can explode if used with product. Do not leave product unattended while in use. Do not attempt to charge a damaged or frozen battery. Use product only with batteries of recommended voltage. Operate product in well ventilated areas.

Fire. Product is an electrical device that emits heat and is capable of causing burns. Do not cover product. Do not smoke or use any source of electrical spark or fire when operating product. Keep product away from combustible materials.

Eye Injury. Wear eye protection when operating product. Batteries can explode and cause flying debris. Battery acid can cause eye and skin irritation. In the case of contamination of eyes or skin, flush affected area with running clean water and contact poison control immediately.

Explosive Gases. Working in the vicinity of a lead-acid is dangerous. Batteries generate explosive gases during normal battery operation. To reduce risk of battery explosion, follow all safety information instructions and those published by the battery manufacturer and manufacturer of any equipment intended to be used in the vicinity of battery. Review cautionary markings on these products and on engine.

For more information and support visit:

www.no.co/support

Important Safety Warnings

About Genius 2D. The Genius 2D is designed for charging the types of 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 up to 40 Amp-hours and maintaining all battery sizes. Getting Started. Before using the charger, carefully read the battery manufacture'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. Location & Mounting. The Genius 2D is designed to remain directly connected to a battery. Prevent battery acid from coming in contact with the product. Do not operate the product in a closed-in area or an area with restricted ventilation. Never mount directly to the battery. Do not set a battery on top of product. Mount the charger near the battery, ensuring the cables and charger are secure and away from any moving parts (eg. fan blades, belts, pulleys). Do not allow cords to be pinched, cut, or damaged by hood or other moving parts, as it may cause a short circuit, which may result in property damage, injury, and/or death. Proposition 65. ▲WARNING: This product can expose you to chemicals including lead and exhaust fumes, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Personal Precaution. Only use product as intended. Someone should be within range of your voice or close enough to come to your aid in case of emergency. Have a supply of clean water and soap nearby in the case of battery acid contamination. Wear complete eye protection and protective clothing while working near a battery. Always wash hands after handling batteries and related materials. Do not handle or wear any metal objects when working with batteries including; tools, watches or jewelry. If metal is dropped onto battery, it may spark or create a short circuit resulting in electrical shock, fire, explosion which may result in injury, death or property damage. Minors. If the product is intended by "Purchaser" to be used by a minor, purchasing adult agrees to provide detailed instructions and warnings to any minor prior to use. Failure to do so is the sole responsibility of the "Purchaser," who agrees to indemnify NOCO for any unintended use or misuse by a minor. Choking Hazard. Accessories may present a choking hazard to children. Do not leave children unattended with product or any accessory. The product is not a toy. Handling. Handle product with care. The product can become damaged if impacted. Do not use a damaged product, including, but not limited to, cracks to the casing or damaged cables. Do not use product with a damaged power cord. Humidity and liquids may damage product. Do not handle product or any electrical components near any liquid. Store and operate product in dry locations. Do not operate product if it becomes wet. If product is already operating and becomes wet, disconnect it from the battery and discontinue use immediately. Do not disconnect the product by pulling on the cables. Modifications. Do not attempt to alter, modify or repair any part of the product. Disassembling product may cause injury, death or damage to property. If product becomes damaged, malfunctions or comes in contact with any liquid, discontinue use, and contact NOCO. Any modifications to the product will void your warranty. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this device. Accessories. This product is only approved for use with NOCO accessories. NOCO is not responsible for user safety or damage when using accessories not approved by NOCO. Operating Temperature. This product is designed to work in ambient temperatures between -4°F to 140°F (-20°C to +60°C). Do not operate outside of temperature ranges. Do not charge a frozen battery. Discontinue use of product immediately if the battery becomes excessively warm. Storage. Do not use or store your product in areas with high concentrations of dust or airborne materials. Store your product on flat; secure surfaces so it's not prone to falling. Store your product in a dry location. The storage temperature is -40°F to 212°F (-40°C to 100°C) (average under-hood temperature). Compatibility. The product is only compatible with 12-volt lead-acid batteries only. Do not attempt to use product with any other type of battery. Charging other battery chemistries may result in injury, death or property damage. Contact the battery manufacturer prior to attempting to charge the battery. Medical Devices. Do not charge pacemakers or other medical devices.

Product may emit electromagnetic fields. Product contains magnetic components which may interfere with pacemakers, defibrillators, or other medical devices. These electromagnetic fields may interfere with pacemakers or other medical devices. Consult with your physician prior to use if you have any medical device including pacemakers. If you suspect the product is interfering with a medical device, stop using the product immediately and consult your physician. Medical Conditions. If you have any medical condition that you believe could be affected by product, including but not limited to; seizures, blackouts, eyestrain or headaches, consult your physician prior to use of product. Cleaning. Power off the product before attempting any maintenance or cleaning. Clean and dry product immediately if it comes in contact with liquid or any type of contaminant. Use a soft, lint-free (microfiber) cloth. Avoid getting moisture in openings. Explosive Atmospheres. Obey all signs and instructions. Do not operate product in any area with a potentially explosive atmosphere, including fueling areas or areas which contain chemicals or particles such as grain, dust or metal powders. High-Consequence Activities. This product is not intended for use where the failure of the product could lead to injury, death or severe environmental damage. Radio Frequency Interference. Product is designed, tested, and manufactured to comply with regulations governing radio frequency emissions. Such emissions from the product can negatively affect the operation of other electronic equipment, causing them to malfunction. Model Number: Genius 2D This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his/her own expense.

How To Use

Charging Modes.

The Genius 2D has two (2) automatic modes, and will begin charging when both the battery and power are connected. Do not operate the charger until you confirm the Genius 2D charger is compatible with your battery type and voltage. Below is a brief description:

Mode Explanation

Standby	The charger is connected to AC power but no battery is detected, and the charger is not charging. Energy Save is activated during this mode, drawing microscopic power from the electrical outlet.
	No Power
12V NORM	For charging 12-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free, Calcium batteries and AGM.
	14.5V | 2000mA | Up To 40Ah Batteries | Maintain all sizes

On-Board Mounting.

Mount the charger near the battery, ensuring the cables and charger are secure and away from any moving parts (eg. fan blades, belts, pulleys). Secure the provided mounting bracket to the vehicle's chassis using the two included self-tapping screws. For best results, mark the position using the bracket, and pre-drill two small pilot holes. Once the bracket is secured, use the velcro strap to secure the Genius 2D in place.

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.

FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE. WARNING: A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:

1.) Position AC and DC cords to reduce risk of damage by hood, door, or moving engine part.
2.) Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.
3.) Check polarity of battery terminals. The POSITIVE (POS, P, +) battery terminal usually has a larger diameter than the NEGATIVE (NEG, N, -) battery terminal.
4.) Determine which battery terminal is grounded (connected) to the chassis. If negative battery terminal is grounded to chassis (as in most vehicles), see Step 5. If positive battery terminal is grounded to the chassis, see Step 6.
5.) For negative-grounded vehicle only, connect POSITIVE (RED) battery clamp or eyelet terminal connector from battery charger to POSITIVE (POS, P. +) ungrounded battery terminal. Connect NEGATIVE (BLACK) battery clamp or eyelet terminal connector to vehicle chassis or engine block away from battery. Connect to a heavy gauge metal part of the frame or engine block.
6.) For positive-grounded vehicle only, connect NEGATIVE (BLACK) battery clamp or eyelet terminal connector from battery charger to NEGATIVE (NEG, N, -) ungrounded battery terminal. Connect POSITIVE (RED) battery clamp or eyelet terminal connector to vehicle chassis or engine block away from battery. Connect to a heavy gauge metal part of the frame or engine block.
7.) Connect the battery charger into a suitable electrical outlet. Do not face the battery when making this connection.
8.) When disconnecting the battery charger, disconnect in the reverse sequence, removing the negative first (or positive first for positive ground systems).

FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE. WARNING: A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:

1.) Check polarity of battery terminals. The POSITIVE (POS, P, +) battery terminal usually has a larger diameter than the NEGATIVE (NEG, N, -) battery terminal.

2.) Attach at least a 24-inch-long 6-gauge (AWG) insulated battery cable to NEGATIVE (NEG, N, -) battery terminal.
3.) Connect POSITIVE (RED) battery clamp or eyelet terminal connector from battery charger to POSITIVE (POS, P. +) battery terminal.
4.) Position yourself and free end of cable as far away from battery as possible - then connect NEGATIVE (BLACK) battery clamp or eyelet terminal connector to free end of cable.
5.) Connect the battery charger into a suitable electrical outlet. Do not face the battery when making this connection.
6.) When disconnecting charger, always do so in reverse sequence of connecting procedure and break first connection while as far away from battery as practical.
7.) A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment specially designed for marine use.

Begin Charging.

1.) Verify the voltage and chemistry of the battery.
2.) Confirm that you have connected the eyelet terminal connectors properly and the AC power plug is plugged into an electrical outlet.
3.) All LEDs will flash momentarily, then the charger will begin charging without user intervention.
4.) The charger can now be left connected to the battery at all times to provide maintenance charging.

Understanding Charge LEDs.

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 Red Charge LED will slowly pulse “on” and “off” when the battery is less than 75% fully charged.
Solid Green LED When the battery is 100% charged, the Charge LED will be solid green.
Pulsing Green LED	The Green Charge LED will slowly pulse “on” and “off” when the battery is between 75% and 100% charged and during battery optimization charging. It is normal for optimization charging to occur on a regular basis after the battery is fully charged.

Understanding Advanced Diagnostics.

The Error, Hot, and Standby LEDs together shall indicate error conditions shown in the table below:

Error	Reason/Solution
Error LED	Reverse polarity. Reverse the battery connections. Or battery voltage is too low for charger to detect.
Hot LED	Charger is outside of its safe operating temperature and is not charging. Allow charger to cool down.
Single alternating flash- Error and Standby	Battery will not hold a charge. Have battery checked by a professional.
Double alternating flash- Error and Standby	Possible battery short. Have battery checked by a professional.
Triple alternating flash- Error and Standby	Battery voltage is too high for the selected charge mode. Check the battery.

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.

Battery Size	Approximate Time to Charge In Hours12VAh (Amp hour)
8	2
12 3
24 6
40 10

Technical Specifications

Input Voltage AC: 110-240 VAC, 50-60Hz

Working Voltage AC: 90-264 VAC, 50-60Hz

Efficiency: 87% Approximately

Power: 28 W Max

Charging Voltage: Various

Charging Current: 2000mA (12V)

Low-Voltage Detection: 1V

Back Current Drain: <0.5mA

Ambient Temperature: -4°F to 140°F (-20°C to +60°C)

Type of Batteries: 12V

Battery Chemistries: Wet, Gel, MF, CA, EFB, AGM, Calcium

Battery Capacity: Up to 40Ah, Maintains All Battery Sizes

Housing Protection: IP65

Cooling: Natural Convection

Dimensions (L x W x H): 5 x 2.3 x 1.5 inches

Weight: 0.5 Pounds

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.

NOCO'S LIABILITY HEREUNDER IS EXPRESSLY LIMITED TO REPLACEMENT OR REPAIR. TO THE MAXIMUM EXTENT PERMITTED BY LAW, NOCO SHALL NOT BE LIABLE TO ANY PURCHASER OF THE PRODUCT OR ANY THIRD PARTY FOR ANY SPECIAL, INDIRECT, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING, BUT NOT LIMITED TO, LOST PROFITS, PROPERTY DAMAGE OR PERSONAL INJURY, RELATED IN ANY WAY TO THE PRODUCT, HOWSOEVER CAUSED,

EVEN IF NOCO HAD KNOWLEDGE OF THE POSSIBILITY OF SUCH DAMAGES. THE WARRANTIES SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND THOSE ARISING FROM COURSE OF DEALING, USAGE OR TRADE PRACTICE. IN THE EVENT THAT ANY APPLICABLE LAWS IMPOSE WARRANTIES, CONDITIONS OR OBLIGATIONS THAT CANNOT BE EXCLUDED OR MODIFIED, THIS PARAGRAPH SHALL APPLY TO THE GREATEST EXTENT ALLOWED BY SUCH LAWS.

This Warranty is made solely for the benefit of the original purchaser of the Product from NOCO or from a NOCO approved reseller or distributor and is not assignable or transferable. To assert a warranty claim, the purchaser must: (1) request and obtain a return merchandise authorization ("RMA") number and return location information (the "Return Location") from NOCO Support by emailing [e-mail] or by calling 1.800.456.6626; and (2) send the Product, including RMA number, and receipt to the Return Location. DO NOT SEND IN PRODUCT WITHOUT FIRST OBTAINING AN RMA FROM NOCO SUPPORT.

The original purchaser is responsible (and must prepay) all packaging and transportation costs to ship products for warranty service.

NOTWITHSTANDING THE ABOVE, THIS HASSLE-FREE WARRANTY IS VOID AND DOES NOT APPLY TO PRODUCTS THAT: (a) are misused, mishandled, subjected to abuse or careless handling, accident, improperly stored, or operated under conditions of extreme voltage, temperature, shock, or vibration beyond NOCO's recommendations for safe and effective use; (b) improperly installed, operated or maintained; (c) are/were modified without the express written consent of NOCO; (d) have been disassembled, altered or repaired by anyone other than NOCO; (e) the defects of which were reported after the Warranty Period.

THIS HASSLE-FREE WARRANTY DOES NOT COVER: (1) normal wear and tear; (2) cosmetic damage that does not affect functionality; or (3) Products where the NOCO serial number is missing, altered, or defaced.

HASSLE-FREE WARRANTY CONDITIONS

These conditions apply only to Product during the Warranty Period. The Hassle-Free Warranty is void either by elapsed time from date of purchase (elapsed time from serial number date, if no proof of purchase) or from the conditions listed earlier in this document. Return Product with the appropriate documentation.

With Receipt:

0-3 Years: NO Charge. With proof of purchase, The warranty period begins on date of purchase.

With NO Receipt:

0-3 Years: NO Charge. With NO proof of purchase, The warranty period begins on the serial number date.

We recommend registering your NOCO product in order to upload proof of purchase and extend your effective warranty dates. You may register your NOCO product online at: no.co/register. If you have any questions regarding your warranty or product, contact NOCO Support (email and phone number above) or write to: The NOCO Company, at 30339 Diamond Parkway, #102, Glenwillow, OH 44139 USA.

NOCO genius 2 ^D

DANGER

For more information and support visit:

www.no.co/support

NOCO®

GENIUS2D.06062023A