NOCO Genius G3500 6V/12V 3.5A Automatic Multi-Purpose Battery Charger and Maintainer (Grey) Review
Charge and maintain virtually any vehicle battery with the NOCO G3500. This versatile, fully automatic charger works with both small and large batteries, from 1.2Ah to 120Ah, including batteries for cars, trucks, boats, RVs, motorcycles, ATVs, jet skis, and snowmobiles. The G3500 uses a thorough eight-step process to charge and maintain your battery and features a switch-mode design, resulting in a charger that's small and lightweight. Rapid Charging Technology enables the G3500 to charge batteries two times faster than traditional chargers.
The NOCO G3500 battery charger and maintainer comes with battery clamp connectors and eyelet terminal connectors (view larger)
Keep Your Batteries Charged and Maintained
With the NOCO G3500, you can restore batteries to their original capacity, recover slightly sulfated batteries, charge batteries in cold climates, rescue drained batteries, and give your battery maintenance charges. As a result, you can extend the life of your battery and improve its capacity. Different modes allow you to charge large batteries for cars, trucks, boats, and RVs as well as small batteries found in motorcycles, ATVs, jet skis, and snowmobiles.
Eight-Step Charging Process
The NOCO G3500 uses an advanced eight-step process to charge and maintain your battery. First, it checks your battery's voltage to make sure that the connections are good and that the battery is in stable condition before beginning the charge process. Second, it initializes a recovery process, if needed, for deeply discharged or sulfated batteries by pulsing small amounts of current. Next, it begins a bulk-charging process with a gentle (soft) charge. The process then continues using both a high-rate and medium-rate charge returns 80 percent of the battery's capacity.
From there, the G3500 brings the charge level to 100 percent and continues to deliver only enough current to keep the battery full. Finally, it monitors the battery voltage to determine whether a maintenance charge should be initiated. The maintenance cycle is repeated to keep the battery at full charge, without overcharging, and the charger can be left connected indefinitely.
The NOCO G3500 uses an eight-step process to charge and maintain your vehicle battery (view larger)
Switch-Mode Design with Advanced Features
The NOCO G3500 features a high-frequency, high-efficiency switch-mode design, resulting in a charger that's compact and lightweight. An auto-memory function returns the charger to the last selected mode when you restart it. Thanks to NOCO's Rapid Charging Technology, the G3500 charges batteries two times faster than traditional linear battery chargers. With Abnormality Protection, the charger automatically shuts off if it's been left in bulk charge mode for an extended period of time. The charger is also designed to adjust automatically to changing current needs and prevent reverse polarity, short circuits, open circuits, sparks, overheating, over-currents, and overcharging. It also offers an optimized charge mode for cold weather or AGM batteries.
VosFX Processor for Smart Battery Charging
The NOCO G3500 comes equipped with a VosFX smart processor that alters the charge process based on organic feedback from the battery to extend the battery life. The processor quickly and efficiently makes decisions on how to charge the battery without risking your safety or damage to the battery.
The charger measures 1.9 by 7.7 by 2.7 inches (H x W x D) and weighs 1.1 pounds. It features a rugged polymer enclosure built for high-impact resistance--making the charger well suited for harsh or demanding work environments. Extendable, plug-and-play connectors allow you to change accessories easily.
The NOCO G3500 battery charger and maintainer is backed by a five-year limited warranty.
Features Included with the NOCO Genius G3500 Battery Charger
 | 6V/12V CompatibilityCharges 6V and 12V batteries |  | Auto-MemoryReturns to last selected mode when restarted |
 | Fully InteractiveAutomatically adjusts itself to changing current needs |  | Designed for SafetyReverse polarity, short circuit, open circuit, spark-proof, overheating, overcurrent, and overcharging |
 | Switch-Mode DesignHigh-frequency, high-efficiency design for a lightweight, compact charger |  | Rapid Charging TechnologyCharges batteries two times faster than traditional linear battery chargers |
 | Variable Input Compensated100 percent full charge even with varying A/C input voltages |  | Recovery ModeRecovers deeply discharged and sulfated batteries with pulse charging |
 | Multiple Battery ChemistriesSafely charges Wet, Gel, MF, and AGM batteries |  | Abnormality ProtectionAutomatically shuts off if the charger remains in bulk charge mode for an extended period |
 | Extendable ConnectorsPlug-and-play connectors for easy accessory changes |  | Cold/AGM ModeOptimized charge mode for cold weather or AGM batteries |
What's in the Box
NOCO G3500 battery charger and maintainer, battery clamp connectors, eyelet terminal connectors, owner's manual, and user guide.
This is a smart, 8-step, fully automatic switch-mode battery charger and maintainer. It restores batteries to their original capacity, recovers slightly sulfated batteries, charges batteries in cold climates, rescues drained batteries and provides maintenance charging to increase battery life. A versatile battery charger that provides charging modes for both large and small batteries from 1.2-120Ah, such as cars, RVs, boats and trucks, as well as for motorcycles, ATVs, jet skis or snowmobiles. NOCO's battery chargers are fortified with several unique safety features to protect you, your battery and the battery charger. The VosFX processor is a revolutionary smart processor utilizing sophisticated levels of intelligence to alter the charge process based on organic feedback from the battery to extend battery life. The processor quickly and efficiently makes decisions on how to charge the battery without risking user safety or damage to the battery. Rugged enclosure is made from a rugged polymer for high-impact resistance for some of the harshest and most demanding working environments. Features a fully insulated over-mold casing with strain relief ends to alleviate unwanted tension on cable leads. Each battery connection accessory features an over-molded inline fuse to increase user safety by protecting the battery charger from potentially dangerous short circuits. A uniquely designed interchangeable connector allows accessories to be properly mated and fastened with a snap-lock latch. It returns to last selected mode when restarted, and automatically adjusts itself to changing current needs. It can achieve 100 percent full charge even with varying A/C input voltages, and automatically shuts off if charger remains in bulk charge mode for an extended period of time. The box includes a charger, battery clamp connectors, eyelet terminal connectors, owner's manual and user guide, and product registration card. It is ETL approved for US and Canada and is RoHS compliant.
