Best Notstromer Test 2025

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Last Updated - 26.07.2025

Best Choice

01

Einhell

Einhell Power Generator (Petrol) TC-PG 35/E5 (Max. 3,100 W, low-emission 4-stroke motor, 2 x 230 V sockets, 15 L tank, AVR function, overload switch)

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28% Off
9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

There are two 230-V sockets including a voltmeter that shows the available voltage for switching to terminal devices. The AVR (automatic voltage regulation) function provides stable output power.
The large 15-L tank is fitted with a practical level indicator for continuous operation. An overload switch and low oil protection indicator ensure safe and long-lasting operation.
The Einhell TC-PG 35 / E5 generates 2,600 Watts of continuous power and a maximum output of 3,100 Watts through a powerful, robust and clean 4-stroke drive motor.
Thanks to the two large wheels and a folding handle, it is easy to transport the generator to the right place where an independent power source is needed.
Compliance with Emission 5 Regulations ensures that the air-cooled, four-stroke petrol engine produces low-emissions during operation. The power generator is easily started using a pull cord.

289,90 € 405,95 €(28% Off off)
02

Green Cell

Green Cell UPS Variation

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12% Off
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the latest technologies, we have achieved a maximum short time for switching the Green Cell UPS to battery mode of 2-6 milliseconds, and the backup times of the device are between 50 minutes depending on the load.
The easy-to-use software provides comprehensive UPS management options from your computer. Send notifications, program emergency times, analyze real-time charts and more.
The UPS with 1200 W total power and 2000 VA apparent power of is equipped with Green Cell AGM batteries that provide stable and safe parameters for your devices.
The Green Cell UPS provides complete protection for all connected devices in the event of a power failure and peak performance. The emergency power supply allows us to save the impact of our work and safely switch off the device.
Form of output voltage: modified sine wave | sockets: 4x Schuko + IEC | battery: 2 x 12V/9Ah | luminous power: 2000VA-3000VA | power: 1200W

139,99 € 159,95 €(12% Off off)
Value for Money

03

SinKeu

SinKeu Portable Power Station 99 Wh, 150 W Solar Generators, Battery with 230 V AC/Car Lighter Port/USB Output, for Travel, Camping, Motorhome and as Emergency Generator (Black)

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26% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Portable power station: 99 Wh power station, 3 USB outputs (1 USB-C), 1 AC 150 W MAX, 2 DC 12 V outputs (not constant). 27000 mAh mobile power storage, charges an iPhone (3800 mAh) approx. 6-7 times, built-in 3 W LED light source, perfect portable power supply to extend your outdoor camping time or as an emergency power supply in case of power outages.
Package includes: 1 x 99 Wh portable power station, 1 x power supply, 1 x car charger, 1 x cigarette lighter adapter, 1 x user manual (English language not guaranteed).
Note: 230 V battery with socket, only AC output 150 W max., DC output 120 W max. The generator supports many small devices under 150 W. Can not operate heaters or motorised equipment, as the peak power of such devices can exceed 150 W, resulting in automatic shutdown.
Multiple protection: The portable generator provides overcharge protection, over-discharge protection, over-current protection, short circuit protection and over temperature protection to ensure that the device is used in a safe environment. The weight is only 1.87 kg, suitable for mobile phones, tablets, laptops, cameras, mini fridges, LED lights, etc., the best choice for RV travel, outdoor adventure, camping, fishing, mountaineering, etc.
Multifunctional solar emergency generator: the charging station has an intelligent LCD display that can clearly see the remaining power, input/output power. The LED light has 3 modes, always on, flash, SOS, so you can travel without worry.
Built-in MPPT technology: high-quality solar generator with which the solar panel can achieve the highest charging efficiency. Support 3 charging methods, indoor charging/12V car charger/solar panel (12-23 V/2 A, recommended power 40 W or 60 W). Full charge in 5.5-6 hours at a maximum input power of 36 W.

94,99 € 129,99 €(26% Off off)
04

MBS SIGNS

Pack of 5 – Sticker Fire Protection Sign "PV System Battery with Emergency Power" Note Film Self-Adhesive 10.5 x 18 cm Made in Germany

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Weather-resistant, UV-resistant, scratch-resistant
Sticks permanently
Premium self-adhesive film, tried and tested
Flame retardant according to DIN 4102-B1
Easy to install

8,99 €
05

DEWIN

DEWIN Automatic Transfer Switch, ATS G2R 4P 63A DIN Rail Dual Power Automatic Transfer Switch Electric Selector Switch 220V

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【High Quality】: The automatic transmission switch has a flame retardant housing that can withstand extreme environments and has strong adaptability and reliable operation.
【High Performance】: The automatic transmission switch is powered by an exciter type electromagnet, with extremely high switching speed, achieving fast switching in millisecond range. The conversion working time is less than 50 ms, effectively solving the problems caused by power outages.
【Features】: The automatic transmission switch has an arc extinguishing system inside, which can quickly cool and extinguish the arc.
【Easy to use】: modular design, cable entry on the same side, convenient wiring, total weight less than 0.8 lbs, compact structure, small size, supports 35mm installation, and can be used in household distribution boxes.
【Automatic Transmission Switch】: The switch is equipped with a common power supply, an emergency power supply and a power indicator light for the load power supply, and the switch status is clear.

43,69 €
06

Buachois

Dual Power Automatic Transfer Switch AC 400V 4P 125A ATS CB Mains 0 Emergency Power Switch Automatic Emergency Power Switch for Municipal Power, UPS Inverter Solar

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide application: the emergency power switch widely used in the installation and use of lighting circuits in office buildings, shopping malls, banks, railway stations, hospitals and high-rise buildings with fire protection requirements.
Precautions: the transfer switch comes with a 125 mm rail, which must be attached to the distribution box with screws, not suitable for standard 35 mm DIN rails. Please pay attention to the size of your distribution box. If you have any questions about the product, you can contact us in advance to make a purchase decision.
Noiseless and energy saving: automatic mains 0 emergency power with EPS fire extinguishing current interface, DC12~24V reliable, long-distance colon, silent operation, energy saving, easy installation, easy operation, reliable and stable performance. This product can be connected to cables with a cross section of 1.5 mm² to 35 mm².
Ensure normal load: the power switch automatically switches over when a circuit fails. If the power supply fails (only test the normal A phase voltage and maintain the A phase voltage, only test the voltage loss or phase failure), automatically connects one or more load circuits from the power supply to another power supply to ensure a normal power supply load.
Complete protection functions: automatic switch with short circuit protection, overload protection, undervoltage protection as well as fire protection, double output and shut-off signal functions. The CB class double circuit breaker is subject to a power failure of a few seconds during the switching of the power supply.

63,29 €
07

DEWIN

DEWIN Automatic transfer switch, transfer switch, top-hat rail, ATS dual power automatic transfer switch, electric selector switch, 2P 63A 220V

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Indicator light】: the transfer switch is equipped with power on indicators for general power supply, emergency power supply and load power supply, and the switch status is clear at a glance.
【High Quality】: The automatic transfer switch features a flame retardant shell, can withstand extreme environments, is highly adaptable and works reliably.
【Easy to use】: modular structure design, incoming lines on the same side, convenient wiring, compact structure, small size, easy installation, supports 35mm installation, and can be used in household distribution boxes.
【ATS Automatic Transfer Switch】: The automatic transfer switch is equipped with an arc extinguishing system inside, which can quickly cool and extinguish the arc.
High performance: the automatic transfer switch is powered by an exciter electromagnet with extremely high switching speed, which achieves fast switching in the millisecond range and effectively solving the problems caused by power outages.

35,29 €
08

Sontheimer

Sontheimer Switch 63A 4-Pin 22 kW Mains 0-Emergency ULO63/4T/NS/Z101/F976, Switcher Black, 2x4x63 A

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Manual switch for emergency power supply (battery, aggregate), 2 x 4-pin with forward neutral conductor (N)
Installation distributor mounting or top-hat rail mounting // flame-resistant plastic material
Global Market Approvals: VDE, CE, UL, CSA, RoHS, REACH, UKCA, IEC 60947-6-1
Cable connection cross section: 2.5 - 16 mm² // clamp tightening torque: 1.5 - 2 Nm
100% made in Germany including traceable 100% electrical test + high voltage test/main switch or disconnector according to VDE up to 690 V

89,56 €
09

Mojimdo

Mojimdo 13500 mAh Electric SUP Pump, 20 PSI Rechargeable Air Pump, Emergency Power and Emergency Light, Auto-Off, 12 V DC & Type-C, with 6 Nozzles, for Stand Up Paddle Boards, Kayaks, Tents,

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile use: perfect for SUP boards, kayaks, tents, air mattresses and other inflatable products. Equipped with a 1 m long inflation hose and 2.5 m power cable.
Rechargeable battery: the 13500 mAh battery allows longer use and fast charging via Type-C. Charging time is approx. 3.5 hours.
Automatic shut-off and protection functions: the auto-off function ensures safe inflation by automatically switching off when the preset pressure is reached. With overpressure and over-current protection.
6 nozzles and multifunctional: with six nozzles for different inflation options and additional use as a power bank and emergency light. Low airflow rate of about 340L/min and high airflow rate of about 100L/min.
20 PSI high pressure performance: strong 20 PSI power for quick and efficient inflation of your SUP boards and kayaks. Works in the temperature range from -10°C to 60°C.

89,99 €
10

VINGVO

Emergency Power Switch, 4P Automatic Switch Emergency Power DIN Rail, Dual Power Automatic Transfer Switch, 2-Way Transmission, for Municipal Power, UPS, Solar (NLQ4-125/4P 100A 220V) (White)

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Silver contacts improve conductivity: power switch automatically by using a silver contact design, the conductivity of the product can be significantly improved. Made of high quality flame retardant plastic materials, have good insulation.
Millisecond switching without interruption: switch emergency power when the normal power supply is abnormal, the emergency power supply works immediately and the power supply is switched in milliseconds without interruption, which ensures the continuity, reliability and safety of the power supply
For various places: switch emergency power 220 V, switch to the emergency power supply in the event of a power failure and to the main power supply when power is restored. Widely used in various places where continuous power failure is not allowed, e.g. in factories, shopping malls, nurseries, etc.
Attention: emergency current switch automatic 4-pin coil can normally work at 85% -110% of the rated operating voltage. If the voltage in the coil is too low, the coil may get hot or burn out. The auxiliary circuit includes 2 independent relays, each relay contains 2 sets of transformer contacts.
Advantage: emergency power switch built-in open signal output port for timing standby, which can be connected to a signal indicator light, convenient for observation outside the device cabinet, rail installation design.

49,99 €