Front-panel volt and watt meters, dual thermally controlled fans, and remote on/off capability — in a rugged aluminum case for RVs, work trucks, and off-grid systems.
The AIMS Power 1250 Watt 12V Modified Sine Inverter with Features (PWRINV1250W) converts 12V DC battery power into 120V / 60Hz AC electricity, delivering 1,250 watts of continuous power for tools, appliances, pumps, and motors. Where the base model keeps things simple, this unit adds front-panel volt and watt meters for real-time system monitoring, dual thermally controlled cooling fans, a pre-wired RJ11 remote on/off port, and rubber-covered dual AC receptacles — all housed in an aluminum case designed for long-term mobile and off-grid use.
Everything the base 1250W model delivers, plus the monitoring and control features that mobile professionals and off-grid users actually need.
Delivers a full 1,250 watts continuously and up to 3,100 watts of surge capacity to handle the startup draw of motors, compressors, and power tools without tripping the unit.
A battery voltage meter and a watt meter on the front panel give you real-time visibility into your DC input level and AC load draw — no guessing, no separate monitor needed.
Two cooling fans activate automatically based on internal temperature, keeping the inverter running efficiently under sustained loads without unnecessary noise at idle.
A built-in RJ11 port lets you add the optional AIMS Power remote on/off switch (sold separately) so you can control the inverter from the cab or a panel without reaching the unit directly.
90% efficiency at full load and 95% at one-third load means more of your battery's stored energy reaches your devices — particularly useful in solar and off-grid setups where every watt counts.
Over-temperature shutdown at 55°C, overload protection, AC output short-circuit protection, high input voltage protection (15–17V), low voltage alarm at 10.5V, and automatic shutdown at 10V — with auto reset on most fault conditions.
The PWRINV1250W is housed in an aluminum case that dissipates heat more effectively than plastic enclosures and holds up in the vibration-prone environments of work trucks, RVs, and boats. The pre-slotted mounting plate makes it straightforward to secure the inverter to a wall, shelf, or chassis without drilling a custom bracket.
| Continuous Power | 1,250 Watts |
|---|---|
| Surge Power (Peak) | 3,100 Watts |
| Waveform | Modified Sine Wave |
| DC Input Voltage | 12V DC (operating range: 10–15V) |
|---|---|
| AC Output Voltage | 120V AC |
| AC Output Socket Type | 2 x Type 2 3-prong receptacles with rubber covers |
| Frequency | 60 Hz |
| Full Load Efficiency | 90% |
| 1/3 Load Efficiency | 95% |
| No-Load Current Draw | <0.5A |
| Ground | Isolated ground neutral |
| Recommended Inline Fuse | 150A (sold separately) |
| Over-Temperature Protection | Shutdown at 55°C (±5°C); automatic |
|---|---|
| Min Operating Temp (No Load) | -15°C |
| Overload Protection | Yes |
| AC Output Short Circuit Protection | Yes |
| High Input Voltage Protection | 15V–17V |
| Low Voltage Alarm | 10.5V (±0.5V) |
| Low Voltage Shutdown | 10.0V (±0.5V) |
| Internal Fuse | Yes |
| Fault Reset | Auto reset on most fault conditions |
| Cooling | Dual thermally controlled cooling fans |
| Status Indicator | Green/red LED (ready / fault) |
| Case Material | Aluminum |
|---|---|
| Remote Port | RJ11 (pre-wired for optional remote on/off switch) |
| Mounting | Pre-slotted mounting plate included |
| Dimensions (L x W x H) | 11.25" x 8.25" x 3" (28.6 x 21.0 x 7.6 cm) |
|---|---|
| Weight | 5 lbs (2.3 kg) |
This PWRINV1250W "with Features" model adds a front-panel battery voltage meter, a watt meter, dual thermally controlled cooling fans, rubber-covered AC outlet covers, an on/off switch, and a pre-wired RJ11 remote on/off port. It is also larger and heavier (11.25" x 8.25" x 3", 5 lbs vs. 10.5" x 5.25" x 3.25", 3.3 lbs) and carries a higher surge rating (3,100W vs. 2,400W). The base model is the more compact, budget option; this model is the better choice when you want live system monitoring and remote switching capability.
The volt meter displays your DC battery bank voltage in real time, letting you see at a glance whether your battery is fully charged, discharging, or approaching the low-voltage alarm threshold (10.5V ±0.5V). This is particularly useful for monitoring battery state during extended use without a separate battery monitor. The inverter will also sound a low-voltage alarm before automatically shutting down at 10.0V ±0.5V to protect your battery from deep discharge damage.
The inverter includes a pre-wired RJ11 port on the unit that accepts the optional AIMS Power Remote On/Off Switch (sold separately). Once connected, you can power the inverter on or off from a remote location — such as the cab of a truck or a control panel — without accessing the inverter itself. This is particularly useful in permanent installs where the inverter is mounted in a compartment or under a seat.
At 1,250 watts continuous, you can run most standard appliances and tools including a box fan, LED lighting, a small refrigerator, a power drill, a coffee maker, or a laptop charger. The 3,100-watt surge rating handles the brief startup spike of motor-driven equipment like compressors, pumps, and circular saws that draw significantly more current at startup than during normal operation. Always verify the running and startup wattage of your equipment before connecting.
AIMS Power specifies a 150-amp inline fuse for this inverter, sold separately. DC battery cables are also sold separately. Use appropriately rated cables — undersized wiring will cause voltage drop and heat buildup under load. AIMS Power sells compatible inline fuse kits and UL-listed cables.
Modified sine wave is a stepped approximation of the smooth AC wave produced by utility power. It works well for most power tools, pumps, motors, heaters, and standard appliances. Some sensitive electronics — certain televisions, audio equipment, medical devices, and variable-speed motor controls — may experience interference or reduced performance. AIMS Power notes this inverter may cause visible lines or waves on some TVs. If you need clean power for sensitive devices, consider AIMS Power's pure sine wave inverter line.
Yes. This inverter works well in 12V solar setups where a charge controller maintains a battery bank and the inverter draws from that bank as needed. The front-panel volt meter makes it easy to monitor battery state without a separate display. The inverter does not include solar charging capability — a compatible charge controller and solar panels are required separately.
This inverter is covered by a 2-year parts and labor warranty and includes lifetime technical support from AIMS Power at no charge. Purchasing through TrueStead Supply as an authorized dealer ensures your warranty registration is fully supported by the manufacturer.
