PowerDrive
400 Watt Power Inverter 12v DC to 110v AC with 2 Outlets 2 Ports PWD400
400 Watt Power Inverter 12v DC to 110v AC with 2 Outlets 2 Ports PWD400
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Genuine PowerDrive (RoadPro Brands) power, shipped from a 10-year-old 12 V specialist. The PowerDrive PWD400 is a 400 W 12 V DC-to-115 V AC power inverter for trucks, RVs, work vans, boats and job sites. Order by 2 PM PT for same-day shipping to all 50 states. Questions? Call 916-235-0009 or email speedstuff2017@gmail.com.
Why you'll like it
- 400 W continuous
- AC outlets: 2 x 3-prong AC
- Charge phones and tablets without using an AC outlet (1 x USB-A 2.4 A, 1 x USB-C 3.0 A)
- Short circuit, over-temperature, overload
PowerDrive PWD400 specifications
| Brand | PowerDrive |
|---|---|
| Model / MPN | PWD400 |
| Continuous power | 400 W |
| Surge (peak) power | Not published by the manufacturer (omitted) |
| Input | 12 V DC |
| Waveform | Not published by the manufacturer (omitted) |
| AC outlets | 2 x 3-prong AC |
| USB ports | 1 x USB-A 2.4 A, 1 x USB-C 3.0 A |
| Connection | 12 V plug and full battery cable kit; removable ATC fuse |
| Protection | Short circuit, over-temperature, overload |
| Dimensions / weight | Not published by the manufacturer (omitted) |
| Warranty | 1-year limited warranty |
Specs come from the manufacturer's manual and official listings. Anything the manufacturer doesn't publish is marked "omitted" instead of being guessed.
What's in the box
- PowerDrive PWD400 400 W inverter
- 12 V plug and battery cable kit
- User guide
Which size inverter do I need?
Add up the running watts of everything you will use at the same time, then leave about 20% headroom. Motors and compressors (fridges, saws, pumps) can pull 2–3 times their running watts for a moment when they start. The PWD400 is a good fit for laptops, TVs, game consoles, small fridges and slow cookers. Above about 120–180 W you need the battery cables, not the 12 V socket.
| Appliance | Typical running watts | Fits the PWD400? |
|---|---|---|
| Phone / tablet charger | 10–20 W | Yes |
| Laptop | 60–90 W | Yes |
| CPAP (no humidifier) | 30–60 W | Yes |
| LED TV 32–50 in. | 50–120 W | Yes |
| Electric blanket | 100–200 W | Yes |
| 12 V-replacement mini fridge | 60–150 W | Yes |
| Slow cooker | 150–300 W | Yes |
| Full-size refrigerator (start-up) | 150–1200 W | Maybe, check your appliance label |
| Coffee maker (drip) | 600–1000 W | No, choose a larger size |
| Microwave (700 W cooking) | 1100–1200 W | No, choose a larger size |
| Circular saw (start-up) | 1400–2500 W | No, choose a larger size |
| Hair dryer | 1200–1875 W | No, choose a larger size |
| Space heater | 750–1500 W | No, choose a larger size |
| Toaster oven | 1200–1500 W | No, choose a larger size |
These are typical figures. Always check the wattage label on your own appliance.
Modified sine wave vs. pure sine wave: the honest version
PowerDrive doesn't publish the waveform for the PWD400. Compact inverters like this are typically modified sine wave, so plan around that. Modified sine wave runs most chargers, laptops, phones, TVs, lights, power tools, heaters and coffee makers just fine, and it costs far less than pure sine wave. Some devices do better on pure sine wave: certain CPAP heated humidifiers, variable-speed tools, some battery chargers for cordless tools, audio gear (which may hum), medical equipment, and anything with a sensitive motor or a timer clock. GFCI outlets and devices may not work properly on modified sine wave either. If your equipment's manual calls for pure sine wave, buy a pure sine wave inverter.
Manual & Downloads
PowerDrive PWD400 Owner's Manual (PDF)
FAQ
Will the PWD400 run a microwave?
No. A microwave draws about 1,100 W or more, so you need a 1500 W or larger inverter connected directly to the battery.
Can I plug it into my cigarette lighter / 12 V socket?
Yes. Vehicle sockets are usually fused at 10–15 A (about 120–180 W), so heavier loads need the battery cables.
How long will my battery last?
Roughly divide your load watts by 10 to get the 12 V amps drawn. For example, a 500 W load draws about 50 A, so a 100 Ah battery gives about 1–1.5 hours of usable runtime. Run the engine for long or heavy use.
Is this a pure sine wave inverter?
The manufacturer doesn't list it as pure sine wave, so treat it as modified sine wave.
What warranty does it have?
1-year limited manufacturer warranty.
When will it ship?
Orders placed by 2 PM PT ship the same day, and we ship to all 50 states. Call 916-235-0009 with questions.
Compare other sizes
- PowerDrive PWD150S, 150 W
- PowerDrive PWD150C, 150 W
- PowerDrive PWD120C, 120 W
- PowerDrive PWD120, 120 W
- PowerDrive PWD100D, 100 W
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