QOLTEC Voltage converter QOL51945
Specification
Specification Tecdoc
UPS Inverter Monolith 3000W / 6000W 12V LCD
Inverter + Battery Charger + UPS · 12 V → 230 V AC · LCD
Product code: 51945
Key features
3 functions in one device
Voltage inverter + battery charger + UPS power supply — a complete mobile and emergency solution
Pure sine wave
Current identical to a 230V socket — safe for any device, including refrigerators, microwaves, and office equipment
15A battery charger
When connected to the network, the device automatically charges the battery with up to 15A current — no additional devices needed
LCD display
Current monitoring of battery level, device power, and AC and DC voltage — full control over operating parameters
UPS — emergency power supply
Automatic switch to battery power in case of power failure — the heating system, router, and equipment work without interruption
Intelligent cooling
The fan turns on only when the device is under load — silence under light load and protection against overheating
Product description
Qoltec brand inverter with UPS function and the ability to charge a battery with a continuous power of 3000W and pure sine wave output. Perfect for places without direct access to the power grid. The product has built-in network sockets compatible with European plugs, a power cable, an LCD display, and a USB port.
- Simultaneous battery charging and powering connected devices
- Automatic switch to emergency power in case of network failure
- LCD display — monitoring voltage, power, and battery level
Three functions in one device
Qoltec brand inverter combines the functions of:
- 12V to 230V voltage inverter — when connected to a battery, the inverter draws the necessary energy to power the connected device
- Battery charger — when connected to the network, the device automatically switches to battery charging mode
- UPS power supply — when a network power failure is detected, the device switches to emergency power mode, using the energy stored in the battery until the network voltage returns
The inverter can simultaneously charge the battery and power connected devices.
Voltage inverter, meaning mobile energy in its pure form
Qoltec brand inverter is a pure sine wave, generating current identical to a 230V socket, ensuring safety for all connected devices. It is perfect for power outages and during travel when there is no access to a socket.
When choosing the right inverter, it is worth paying attention to the power value and battery voltage, which must match the inverter's specifications to provide our equipment with the right working conditions. The number of connected devices is also important, e.g., when connecting a laptop and printer, the power of both devices should be summed. Remember that the power consumed by the connected device should not exceed 85% of the inverter's rated power.
Don't lose energy while traveling
The product is perfect as a power source in campers or trailers during family trips. Planning a longer vacation at a campsite or by the lake and looking for a way to connect a laptop or charge a phone on a yacht? It's worth preparing well. With the Qoltec brand inverter, you can power your devices anywhere and enjoy comfort and convenience.
The voltage inverter will be an ideal power source for yacht and boat owners. This intelligent device allows you to power equipment during long trips away from home, featuring a USB port and network sockets to connect electrical devices. You can charge your phone, laptop, or connect another device whose power does not exceed the inverter's power, and simultaneously charge the battery without any obstacles.
Depending on the power consumed by the device, the 3000W inverter can power devices such as:
- RTV equipment: TV, game console, music equipment, radio
- Household appliances: refrigerator, kettle, microwave, coffee maker, toaster, sandwich maker
- Office equipment: computers, printers, laptops
- Others: power tools e.g., drill, hairdryer, boat charging, air conditioning
The inverter can also be used not only during travel but also as an emergency power source, e.g., maintaining a heating system or powering equipment as a UPS power supply during temporary power outages from the grid.
Multifunctional LCD display
The inverter is equipped with an LCD display that informs us about the current battery charge level, power of connected devices, and AC and DC voltage. You can monitor the device's operating parameters, making working with the inverter easy, safe, and reliable.
Durable and lightweight housing
The housing is designed from high-quality aluminum resistant to shocks and mechanical damage. It's the ideal choice for people who enjoy long journeys. With the inverter featuring a built-in network socket, you can use almost any device requiring a socket connection. Additionally, the product has a USB port for charging mobile devices and a fan to ensure proper cooling.
Full confidence in the quality of your device's power supply
The product is equipped with a range of protections that guarantee full protection for connected devices. Additionally, the set includes a spare fuse to ensure the longest possible operation of the equipment.
The inverter features:
- LVP protection — protects devices from too low output voltage, which affects the stability of connected devices
- SCP protection — short-circuit protection
- OVP protection — protection against too high output voltage and damage to connected devices
- OCP protection — protection against too high current on the line
- OTP protection — protection against overheating
Trust confirmed by warranty
Are you looking for high quality in the product you purchase? Our solutions will meet your expectations. The Qoltec brand has been awarded the Consumer Laurel, and the product is covered by a warranty valid from the date of purchase.
Protection system
Technical parameters
| Specification | |
| Continuous power | 3000 W |
| Total power (peak) | 6000 W |
| Input voltage (DC) | 12 V DC |
| Output voltage (AC) | 230 V ± 5% AC |
| Voltage waveform | Pure sine wave |
| Input current | 15 A |
| Idle current | > 1.3 A |
| Output frequency | 50 Hz ± 0.5 Hz |
| Efficiency | 90% |
| Cooling | Intelligent cooling |
| USB port | 5 V / 1 A |
| Protections | LVP / OVP / OCP / OTP / SCP |
| Battery charger function | |
| DC charging voltage | 14.6 V DC |
| Charging current | 15 A |
| Battery maintenance voltage | 13.8 V DC |
| General data | |
| Operating temperature range | –10°C to +50°C |
| Dimensions (L × W × H) | 210 × 515 × 90 mm |
| Net weight | 6.800 kg |
Applications
Set contents
- 1 × Inverter
- 8 × Fuse
- 1 × Set of cables
- 1 × Mounting key
- 1 × Power cable
- 1 × Warranty card
- 1 × User manual
About the company
25 years of tradition
Carefully selected components for maximum durability — longer trouble-free operation and lower operating costs throughout the product's life cycle.
High quality at an affordable price. Qoltec optimizes production costs without any compromises in technical parameters and reliability.
Modern aesthetics and thoughtful ergonomics — Qoltec products are visually and functionally tailored to the demands of the contemporary market.