Product Specifications for NOCO GENIUS2X4 6V/12V 4-Bank 8A Smart Battery Charger
| BM Part #: | GENIUS2X4 |
|---|---|
| Voltage: | 6/12 Volt |
| Charging Rate: | 8 Amp |
| Length: | 5.71" |
| Width: | 9.37" |
| Height: | 2.28" |
| Shipping Weight: | 5.00Lbs |
| Warranty: | 3-year Limited |
| Product Manual: | Download |
| Datasheet: | Download |
- 4-Bank Charging: Charges or maintains four 6V/12V batteries at once, each independently controlled.
- Fully Automatic: Shifts to maintenance mode when full, so it's safe to leave connected indefinitely.
- Battery Desulfator: Detects sulfation and stratification, then repairs it to restore lost performance.
- Extended Reach: Includes 10' extension cables per bank for batteries mounted in hard-to-reach spots.
- Broad Compatibility: Supports AGM, gel, flooded, and lithium (LiFePO4) batteries up to 40Ah each.
- Dead Battery Recovery: Detects batteries as low as 1 volt, with Force Mode down to 0 volts.
Product Description
Got more than one vehicle sitting between drives? A daily driver, a classic in the garage, a motorcycle, a boat, or a lawn tractor that only runs a few months a year — every one of those batteries loses charge while it waits. The GENIUS2X4 lets you maintain all of them from a single charger, instead of buying a separate one for each.
With four independent 2-amp banks, this charger handles four 6V or 12V batteries at the same time, each monitored and charged separately. One battery finishing early doesn't affect the others — every bank runs its own show.
One Charger for Your Whole Fleet
This is where the GENIUS2X4 earns its keep. Instead of shuffling one charger around the garage all winter, plug in up to four batteries at once and let it run:
- Your car or truck battery
- A motorcycle, ATV, or UTV battery
- A boat, RV, or trailer battery
- A backup or seasonal equipment battery
It works across lead-acid and lithium (LiFePO4) chemistries, so mixed setups — say, a lithium marine battery and a standard AGM car battery — aren't a problem.
Reaches Batteries in Awkward Spots
Each bank includes a long cable and a 10' extension, so you're not fighting a short cord to reach a battery tucked under a boat deck or buried in an RV compartment. Connect the extensions end-to-end for even more reach.
Repairs Batteries, Not Just Charges Them
Batteries that sit unused for months are prone to sulfation, which quietly kills their ability to hold a charge. The GENIUS2X4 detects this automatically and runs a repair cycle to help reverse it — often restoring performance in batteries other chargers would give up on. It can detect and charge batteries as low as 1 volt on its own, and Force Mode can jump-start a charge cycle on batteries as low as 0 volts.
Set It, Forget It, All Winter Long
Once a battery is full, the GENIUS2X4 automatically shifts to maintenance mode and holds it there — no overcharging, no monitoring required. A built-in thermal sensor adjusts the charge rate for hot garages or cold barns, so it stays accurate no matter the season.
If you're tired of babysitting a garage full of batteries, let the GENIUS2X4 take over. Four banks, one charger, zero dead batteries come spring.
Frequently Asked Questions
Can I charge four completely different types of batteries at the same time?
A: Yes. Each of the four banks operates independently, so you can mix voltages and chemistries — for example, a 12V AGM car battery alongside a 6V lithium battery — without any issue.
How far away can my batteries be from the charger?
A: Each bank comes with its own cable plus a 10-foot extension cord, and extensions can be connected together for batteries mounted in hard-to-reach locations like RV compartments or boat hulls.
Is it safe to leave all four batteries connected for months at a time?
A: Yes. The GENIUS2X4 is fully automatic and switches each bank to a low-power maintenance mode once its battery is full, so it's designed for long-term, unattended use.
What's the difference between this and the GENIUS2X2?
A: The GENIUS2X4 has four charging banks instead of two, letting you maintain twice as many batteries at once — ideal for larger garages, fleets, or anyone with several seasonal vehicles.
Can this charger recover a battery that's been sitting dead for months?
A: In most cases, yes. It automatically detects and charges batteries as low as 1 volt, and its manual Force Mode can attempt to recover batteries as low as 0 volts.
