Go Power AIC-2000-12-SL 2000W 12V Inverter Charger

Most power problems on a boat or RV come down to juggling two jobs at once. You need clean AC to run your gear when you're away from a plug, and you need to refill the battery bank fast when you're back on shore power or the generator's running. The Go Power AIC-2000-12-SL handles both in a single box. It's an advanced inverter charger from the AIC series that pairs a 2000-watt pure sine wave inverter with a 100-amp multi-stage battery charger and a built-in 30-amp automatic transfer switch, all working from a 12-volt house bank.

Start with the inverter side. It puts out 2000 watts of continuous pure sine wave power at 120 VAC, with a 3400-watt surge for five seconds to cover the startup kick of motors and compressors. Pure sine matters because it's the same clean waveform as the grid, so your microwave hits full power, your electronics run cool and quiet, and nothing hums or flickers. That's enough to run a coffee maker, a compact induction burner, entertainment gear, tools, and small appliances while you're anchored out or boondocking.

Now the charger. When you plug into shore power or fire up a generator, the AIC-2000-12-SL flips roles and becomes a 100-amp multi-stage charger. Multi-stage charging means it doesn't just dump current into the bank and walk away. It works through bulk, absorption, and float stages to bring the batteries up quickly and then hold them at a safe maintenance level, which protects battery health and gives you the most usable capacity over the life of the bank. A 100-amp output is serious charging muscle, so a bank that took all evening to draw down can recover in a fraction of the time.

The piece that ties it all together is the built-in 30-amp automatic transfer switch. When external AC is present, the unit passes that power straight through to your loads and simultaneously charges the batteries. When shore or generator power drops away, the transfer switch automatically shifts your circuits back to inverter power. You don't flip anything or run outside to swap a plug. The changeover happens on its own, so your fridge and essentials stay live during the handoff. This is the single-leg SL configuration, wired for a straightforward 120-volt system.

Reliability is baked in. The AIC-2000-12-SL is UL listed and carries multi-stage charging along with the protection features you want in an always-on component, including safeguards against overload, short circuit, over and under voltage, and thermal buildup. At 34 pounds it's substantial, which is exactly what you'd expect from a unit built to carry real continuous loads rather than a light-duty accessory. Give it a dry, ventilated mounting spot near the batteries, size your DC cabling and fusing to the 2000-watt rating, and it settles into the system as a quiet workhorse.

For anyone building or upgrading a 12-volt house system, combining the inverter, charger, and transfer switch into one unit simplifies the whole install. You wire one box instead of three separate components, you get automatic switching without extra relays, and you end up with a cleaner, more serviceable electrical bay. Go Power designed the AIC series for people who actually live on their systems, and the AIC-2000-12-SL is a smart center for a setup that has to work every day, whether you're cruising, camping, or riding out a stretch off the grid.

There's also a real convenience factor that's easy to overlook until you live with it. Because the charger and transfer switch are built in, your batteries stay topped up automatically whenever you're connected to power, and your loads never drop during the switchover. You stop thinking about the electrical system and just use it. That's the mark of a well-designed unit. It quietly does its job in the background so you can focus on the trip, the work, or the view instead of watching a battery monitor.