Living off-grid shouldn't mean leaving your comforts behind. The Bear Power 2000W is the professional heart of a van or home solar setup combining an inverter, a 4-stage intelligent charger, and a true UPS automatic transfer switch into one ultra-thin unit. Whether you're working remotely, running kitchen appliances, or keeping critical devices online during a power outage, this unit delivers silence, stability, and rock-solid reliability.

• True Pure Sine Wave Output: Delivers the same clean, stable power as a utility wall outlet protecting sensitive electronics, medical devices, and modern appliances from harmful modified-wave interference. | THD <3% for near-perfect power quality
• 3-in-1 System: Inverter + Automatic Battery Charger + Automatic Transfer Switch in a single unit. When mains power is available, it charges your batteries and passes power through. When it's not, it switches seamlessly to battery. | Eliminates the need for separate components
• Ultra-Fast UPS Switching: Built-in AC bypass relay switches between mains and battery power in under 10ms virtually undetectable to connected devices. | True uninterrupted power output
• Massive Surge Handling: With a 6000W peak surge capacity, you can easily start up power hungry devices like air conditioners, refrigerators, and power tools. | 3× rated power headroom for heavy startup loads
• Intelligent 4-Stage Charging: Adjustable charging voltage and current with battery charging activation mode prevents damage to deeply discharged batteries. | Smart, battery-safe replenishment every time
• Ultra-Low Standby Consumption: Engineered for minimal static power draw, so your battery bank isn't silently drained while the inverter idles. | Maximises your off-grid runtime
• Ultra-Wide Mains Input Range: Accepts AC input from 80–140VAC handles poor grid quality, generator fluctuations, and unstable shore power without issue. | Built for real-world imperfect power

Invest in a power system that grows with your adventures. Reliable, intelligent, and powerful the Bear Power 2000W is the professional choice for serious builders.

• Continuous Output Power: 2000W | Handles sustained loads like laptops, fans, lighting systems, and kitchen appliances
• Peak / Surge Capacity: 6000W | Comfortably starts high-inrush appliances like refrigerators, air conditioners, and power tools
• Output Waveform: Pure Sine Wave | Same quality as utility grid power — safe for all sensitive electronics
• Total Harmonic Distortion (THD): <3% | Near-perfect power quality with minimal electrical noise
• Output Frequency: 50Hz / 60Hz (selectable) | Compatible with both North American and international appliances
• Output Voltage: 110V AC (Single Phase) | Standard US household voltage
• Output Current: 9.09A continuous
• Efficiency: Up to 95% | Industry-leading conversion efficiency — minimal energy wasted as heat
• Soft-Start Technology: Gradual power ramp-up reduces inrush stress on both the inverter and connected appliances | Extends equipment lifespan

• Model Number: QSP-2000W
• DC Input Voltage: 12V DC | Compatible with LiFePO4, AGM, Gel, and Flooded lead-acid batteries
• AC Output Voltage: 110V AC (Single Phase) | Standard US outlet voltage
• Continuous Output Power: 2000W
• Peak Output Power: 6000W
• Output Waveform: Pure Sine Wave
• THD: <3%
• Efficiency: 95%
• Output Frequency: 50Hz / 60Hz (selectable)
• Output Current: 9.09A
• AC Mains Input Range: 80–140VAC (ultra-wide range)
• AC Bypass Transfer Time: <10ms | True UPS uninterrupted switching
• Start Type: Soft-start
• Grid Type: Off-grid
• Network Connectivity: RJ45 & RJ11 ports | For remote monitoring and communication
• Dimensions (L × W × H): 432 × 242 × 122 mm (17" × 9.5" × 4.8") | Ultra-thin profile
• Weight: 15.90 kg / 35 lbs
• Package Size: 20"x12.5"x9" | Gross weight: 17.5 kg
• Operating Temperature: -10°C to 50°C | (-40°C cold start customisable)
• Protection Rating: IP30
• Certifications: CE / RoHS / IP30
• Warranty: 12 Months

The Bear Power 2000W goes far beyond a basic inverter. It's a fully automated power management system engineered for demanding off-grid and backup applications.

• Electrical Isolation Technology: Power frequency design with full electrical isolation strong load capacity and high resistance to impact loads. | Industrial-grade safety and stability
• Intelligent 4-Stage Charging: Adjustable charging voltage and current across four stages. Battery charging activation mode prevents damage to deeply discharged batteries. | Maximises battery lifespan
• True UPS AC Bypass (<10ms): Instantaneous switching between mains and battery ensures connected devices never experience a power interruption. | Critical for computers, routers, and medical equipment
• Ultra-Wide AC Input (80–140VAC): Operates reliably on fluctuating generator output or poor grid quality without tripping or damaging connected equipment. | Built for real-world power instability
• Ultra-Low Static Power Consumption: Standby draw is kept to an absolute minimum, preserving your battery bank when the inverter is idle. | Maximises off-grid runtime
• Automatic Generator Energy Distribution: Intelligently manages and utilises available generator power to charge batteries and supply loads simultaneously reduces required generator size. | Smarter, more efficient system design
• Remote ON/OFF via Signal: The inverter can be switched on or off with any power signal above 5V (optional). | Enables smart home automation and remote control
• LCD Control Panel Compatible: Via the optional matched LCD panel or communication software, all system settings can be personalised quickly and easily. | Full system configurability
• Inverter Priority Mode: Optional mode allows the inverter to prioritise battery/solar power over mains input maximising self-consumption. | Ideal for solar-first setups
• Mains Auto-Restart: Automatically resumes mains-powered operation when grid power is restored (optional). | Zero manual intervention required

Every Bear Power unit includes a comprehensive multi-layer protection suite to safeguard your battery bank, connected appliances, and the inverter itself:

• AC Input Over/Under Voltage Protection Disconnects if mains voltage falls outside safe operating range
• DC Input Over/Under Voltage Protection Prevents operation if battery voltage is dangerously high or low
• Over-Temperature Protection Automatic thermal shutdown if internal temperature exceeds safe limits | Optional battery over-temp protection also available
• Overload Protection Automatically shuts down if output exceeds rated capacity
• Output Short-Circuit Protection Instant response to protect both the inverter and connected devices
• Deep Discharge Recovery Mode Battery charging activation mode safely recovers deeply discharged batteries without damage
• Temperature-Controlled Cooling Fans Fans only engage when needed for whisper-quiet operation in small living spaces | Stealth-optimised thermal management

The Bear Power 2000W Inverter/Charger is designed for a wide range of off-grid, mobile, and backup power environments:

• Home & Office Backup Power True UPS functionality keeps critical devices online during outages
• Camper Vans, RVs & Caravans The complete power management solution for van life electrical builds
• Yachts & Marine Applications IP30 rated, vibration-tolerant, and built for demanding environments
• Solar Off-Grid Systems Pairs perfectly with LiFePO4 battery banks and MPPT solar controllers
• Portable & Emergency Power Reliable 110V output anywhere you need it
• Remote Work Setups Clean pure sine wave power for laptops, monitors, and networking equipment

Model: QSP-2000W

• 1 × 2000W Pure Sine Wave Inverter/Charger (12V DC → 110V AC)
• 1 × Remote Control Panel
• 1 × Cat 6 / RJ45 Communication Cable (for remote panel)
• 1 × Detailed User Manual

Installation Notes:

• 12V Systems Only: This unit is configured for 12V DC input only. Do not connect to 24V or 48V battery banks.
• 110V AC Output Only: This unit outputs 110V AC single phase. Do not use with 220V appliances or systems.
• Battery Cables: DC cables (battery to inverter) are not included and must be sourced separately. Use appropriately rated heavy-gauge cables for your system's current draw.
• Battery Must Be Connected First: Always connect the battery before connecting any AC loads or shore power input.
• Fusing: Install a properly rated fuse or circuit breaker between the battery and inverter input terminals. | Essential for fire safety and circuit protection
• Ventilation: Ensure the unit has clear airflow on all sides. Operating temperature range: -10°C to 50°C. Do not enclose in an airtight cabinet.
• Charger Profile: The integrated charger is compatible with LiFePO4, AGM, Gel, and Flooded battery types. Verify your battery type setting before first use.
• Network Ports: RJ45 and RJ11 ports are available for optional LCD panel and remote monitoring connectivity.

Disclaimer: Professional installation is highly recommended to ensure compliance with electrical codes and vehicle safety standards. This unit is for off-grid use only and should not be connected directly to the utility grid.