Automatically diagnose, recover, charge, and maintain your batteries.
- Advanced 8-Step Charger
- Energy Efficient, 90% Efficiency
- Rapid Charging Technology (RCT)
- Variable Input Compensated (VIS)
- Fully Interactive, MCU Controlled
- Charges: Wet, Gel, MF & AGM Batteries
- Compact Lightweight Design
- Fully sealed for harsh environments
- Designed in the USA.
- This 2-bank marine battery charger meets ISO 8846 Marine standards and Ignition protected (US Coast Guard 33 CFR 183.410)
- Battery Banks: 2 -- Charges up to two (2) single 12 volt batteries
- Amps/Bank: 10 Amps
- Total Amps: 20 Amps
- Input Voltage: 70-130 VAC
- Nominal Voltage: 12 VDC
- Efficiency: 90% Approx.
- Charging Voltage: 14.4V
- Back Current Drain: 1Ah
- Ripple: -2%
- Cooling: Natural Convection
- Charger Type: 8-Step, Switch-Mode
- Battery Capacity: 14-230Ah
- Battery Types: Wet, Gel, MF, AGM
- Enclosure: IP68
- Output Leads (Length): 6 Feet
- AC Cord (Length): 5 Feet
- Dimensions: 7.0" x 6.0" x 2.5"
- Weight: 5.70 Lbs
Fully Interactive, MCU Controlled
The NOCO Genius 12-volt, 20-amp charger is a fully automatic and fully interactive Micro-Control-Unit (MCU), making it faster, more powerful, more reliable, and smarter than the competitive brands. What does that mean to you? The charger will adjust itself to the changing current and voltage requirements to charge and maintain your batteries.
Compact Lightweight Design
The high efficiency power conversion allows the charger to be light and compact. This charger is more versatile than other brands, and is easy to install and fit into tight locations.
Designed for Safety
Each of NOCO Genius 12-volt, 20-amp chargers contain multiple safety features to protect against user errors. These safety features include: reverse polarity, short circuit, open circuit, over-temperature, over-charging, and spark proof battery hook-up.
Energy Efficient, 90% Efficiency
The NOCO Genius charger is 90% efficient. Why is that important? The higher the efficiency level, the lower the power waste. Unlike other battery chargers, which waste almost half of their rated current, the NOCO Genius charger always performs at an optimal level.
Leaving a battery in permanent maintenance charge mode reduces battery life. In fact, most battery manufacturers recommend against it. That is why this charger shuts off when the charge sequence is complete. Then turn "On" every 24 hours to ensure proper maintenance of your battery and making sure your batteries are 100% charged.
Stage 1 & 2 - Diagnose and Test
Checks the battery voltage to make sure battery connections are good and battery is in a stable condition.
Stage 3 - Soft Start
Begins battery charging process with a gentle charge.
Stage 4 - Bulk Charge
Begins Bulk battery charging process, returns 80% of battery capacity and voltage to 14.0 volt.
Stage 5 - Absorption Charge
Switches to a constant current charge rate to bring your batteries close to 90% charge.
Stage 6 - Taper Charge
Charges at low current levels until battery has reached 95% of its capacity
Stage 7 - Top-Off Charge
Charger initiates top-off charge to bring the battery to 100% charge.
Stage 8 - 24 Hour
Shuts off, but constantly monitors your battery by providing a gentle charge every 24 hours for maximum battery life.
Tech Tip: Using A Multi-Bank Charger
Each bank of this charger is 10 amps. Combined, this is an output of 20 amps (2 banks of 10 amps each). This is commonly used in two ways:
- Connect each bank to separate battery systems, charging both by 10 amps each.
- Connect both amps to the same battery system, charging it by 20 amps total.
My old marine charger went bad for some unknown reason and I was expecting to have a considerable expense to replace it. The NOCO 12V 20A was exactly what I needed to replace the old one ... but at a price that didn't break the bank. It installed quickly and easily and, hopefully, is continuing to do its job as i write this review. Good product (so far) at a good price.
Delivered when said. Works great. Mounted it in the boat now I just plug it in and it charges both batteries
This charger is a big improvement over the El cheapo I had been using.
Got my charger in 2 days excellenct service
Bought a NOCO 12 Volt, 20 Amp Genius 2 Bank Battery Charger for my bass boat. Easy install and works great. So I had to have one for my ski boat.
Had it about 1 month, and it works great. I have 2 new size 29 batteries that I used for 8 hours on my trolling motor, and it took only 2 hours to full charge. It is a good idea to use an extention cord that is 10 GAGE.
The charger came promptly, in g ood shape and worked as advertised.