When I VTOMAN FlashSpeed 1500 When I unpacked it for the first time, I was amazed: At almost 19 kilograms, the device is a heavyweight and at first glance reminds me of an oversized car battery.
Fortunately, VTOMAN has practical handles on both sides, so that you can still carry the power station fairly comfortably over short distances - but I wouldn't subject myself to longer trips on foot with it.
Vtoman FlashSpeed 1500
The case appears to be solidly made, in subtle black and grey with yellow accents, and has a flat shelf on top. There is a built-in cable box, in which I can store all charging cables - a clever detail that I liked better in the test than the usual wireless charging pads from other manufacturers.
The FlashSpeed 1500 is a portable power station with plenty 1548 Wh Battery capacity (LiFePO4 battery cells). This means that there is enough energy in it to run an average household refrigerator for several hours or to charge various devices several times while on the go.
The battery type lithium iron phosphate (LiFePO4) scores with high safety and durability – over 3000 charge cycles until the battery only has 80% capacity, according to the manufacturer. This also explains the higher weight compared to some other power stations, which often use conventional lithium-ion batteries.
More than enough connections
On the front there is a whole Anschluss Army: Three AC sockets (230 V in the EU version) together provide permanent 1500 W Performance and can handle up to 3000 W – enough to power even power-hungry devices such as kettles, microwaves or even a circular saw for a short time. In fact, VTOMAN has a so-called V-Beyond technology integrated, which allows devices beyond the nominal 1500 W to be supplied for a short time without the fuse blowing.
In addition to the sockets, there are 4 USB-A ports (one of which is fast-charging according to QC 3.0) and 2 modern USB-C ports with Power Delivery up to 100 W – In my test, the latter were able to charge my laptop directly at full speed, which is very practical. There are also 12V outputs on board: a classic car cigarette lighter connection (up to 120 W) and two round sockets for lamps or cool boxes, for example.
Even special ports for Car jump starter There is an interesting extra that you will hopefully rarely need. In the company, a central LCD Display about the current charge level in percent as well as input and output power in watts. The display also shows the remaining term – so, something like “3 hours left at current load”, so this function is not missing either.
In addition, a large LED light is built into the back, which shines in three brightness levels and even has flashing and SOS modes. In the test, the built-in lamp It is very useful in the event of a power outage at night – it illuminates a room sufficiently and turns the FlashSpeed into an emergency light.
It is also exciting how VTOMAN has solved the charging problem: A external power adapter is not needed because the charger is integrated in the device. So you just connect a cable to the front of the device to charge the station. And that works surprisingly fast: In my test, the battery was in just 1 hour full – from 0 to 100%. These are manufacturer specifications that are really accurate and make the competition look old.
This is made possible by a 1500W mains input; for comparison, many similar power stations need 4-8 hours for a full charge. If you like, you can also solar panels Connect: via the Anderson connector, the FlashSpeed accepts up to 400 W Solar input (30–60 V). In combination with the mains power, you can theoretically generate 45 Minutes fully charged – a value that almost makes me shake my head in disbelief. Realistically, of course, this depends on the weather.
Alternatively, there is also a car charging input (12-20 V, up to 200 W) to charge the station in the car while on the move. All three charging methods can even be used in parallel. The charging noise is hard to ignore, however: at full load, the fans blow loudly, which is fine for an hour, but not for those with sensitive ears. At least: once the station is full, the fans almost completely fall silent.
Extensions are also possible
Optionally, the capacity can be expanded: VTOMAN offers a Additional battery which doubles the FlashSpeed 1500 to a total of 3096 Wh. This is simply docked to a special port at the front. I did not have this extension battery available during the test, but the concept sounds sensible for anyone planning longer off-grid operations.
However, you can also use just one additional battery of this kind - cascading multiple batteries is not possible. The output power remains the same at 1500 W, so you "only" gain more endurance, but not a higher wattage.
performance and user experience
The 1500 W continuous power is not just theory, but was actually sufficient in the test to power various Domestic appliances to operate. My Refrigerator ran in emergency power mode almost 22h in a row before the battery was empty – a solid value that allows for a long bridging in the event of a power failure. coffee machine I was able to connect it without any problems. Thanks to the high peak load of 3000 W, the device does not collapse during short-term load peaks.
I was particularly impressed by how the FlashSpeed 1500 with continuous load In a tough test, I ran a fan heater with about 1700 W until the battery was empty. After about 52 minutes, it was over - during this time, the power station delivered about 80% of its nominal capacity, which indicates a fairly high efficiency of the inverter. With moderate loads or intermittent use, you can really get a lot of running time out of the 1548 Wh.
In everyday camping life, for example, this meant that I could operate my cell phone, laptop, cooler and lighting over an entire weekend without reaching my limits.
The volume The flash speed is limited when in use. As long as you don't use more than 1000 W of power, the fans are usually off or run very quietly in the background. Only when I put a lot of strain on the device (for example with the above-mentioned fan heater or an electric heater) do the fans start to turn up audibly. The noise is then reminiscent of a hot desktop PC or a small hairdryer - not shrill, but noticeable.
I find the pass-through function: You can charge the FlashSpeed and run devices on it at the same time. For example, during a test I had my PC and monitor connected to the station while it was connected to the mains. If the house power then went out intentionally, the power station took over in about 10 milliseconds - my computer continued to run without interruption. The UPS function (UPS) works perfectly.
What do other users say?
Most Reviews are positive. The fast charging and the versatile application possibilities are particularly praised. A Camper For example, he wrote that he uses the FlashSpeed 1500 to power his electric grill and cooler and has never had any problems with performance.
Another user reports that he prepared a complete breakfast using a coffee machine, toaster and frying pan and only used a fraction of the battery capacity. In my test and in comparison with other devices, the FlashSpeed proved to be absolutely sufficient and within expectations in terms of usable energy.
Comparison with similar products
Around Portable Powerstations A lot has happened in recent years – and the FlashSpeed 1500 is competing against well-known competitors. Jackery, EcoFlow or Bluetti are established brands that offer similar capacities. In a direct comparison, however, VTOMAN's model holds up very well. Especially with the ultra-fast charging time of one hour, which is currently only achieved or undercut by a few competitors.
Battery technology
The fact that VTOMAN uses LiFePO4 cells is a plus point that it shares with Bluetti and newer EcoFlow devices. In terms of service life, the FlashSpeed 1500 has an edge over some competitors - you can charge it thousands of times before the capacity drops noticeably, while others start to drop after a few hundred cycles. In everyday life, this may not be immediately noticeable for occasional users, but for vanlifers or for frequent use, it is a clear advantage.
One area in which the competition sometimes offers more is App connection and smart featuresThe VTOMAN has neither WiFi nor Bluetooth - in other words, there is no smartphone app to remotely monitor the charge level or perform firmware updates. Personally, I didn't miss it during the test, because the display shows me all the important information and I'm usually near the device when I use it anyway.
In total, the FlashSpeed 1500 with like-minded people with well-known competitor products and even surpasses them in some areas (charging time, features) – and all this at a generally significantly lower price.
Strengths of the FlashSpeed 1500
Each test device has its Advantages and disadvantages, including this power station. Let's start with the Power: What convinced me most was the extremely fast charging. Going from empty to full within an hour is a huge plus point that should not be underestimated in everyday life - spontaneous camping trip and forgotten to charge? Simply plug it in when packing your suitcase and the battery is full before you set off.
Just as strong is the high output power: 1500 W continuous load with reserves upwards is enough for pretty much everything you want to do on the road or in an emergency, from kitchen appliances up to power tools. port variety is exemplary (especially the double 100W USB-C are worth their weight in gold for modern laptops) and all connections are clearly arranged on the front. Big praise also for the LiFePO4 battery with a long service life – you are investing in a product that can last for many years without the battery running out.
The UPS function is another plus point for me, because FlashSpeed can protect power-sensitive devices in the house and take over seamlessly if the network fails. Last but not least, the quality of workmanship: The station appears robust, the buttons and covers feel high-quality, and little details like the integrated lamp and the cable box are evidence of well-thought-out design for outdoor use.
Weaknesses of the FlashSpeed 1500
Let’s get to the weaknesses: The high weight We have already mentioned that almost 19 kg is simply not something you can carry “just like that”. Without a car, you will hardly want to move the thing. But to be fair, that is the nature of such high-capacity batteries, and competing models of this size are not lightweight either. In addition, a App connection been nice.
The volume when charging could also be interpreted as a weakness: There is no "quiet" charging mode. Slower, but quieter charging would sometimes be nice (overnight, for example), but the FlashSpeed always goes full throttle as soon as it is plugged into the mains. Here it's a case of either taking the fast route or deliberately charging via solar panels, which is whisper quiet but depends on the weather.
Price-Performance Ratio
Depending on the offer and bundle, the FlashSpeed 1500 costs approximately 600 to 1.500 Euro. You often see big discounts or special offers, so that it is currently available for just over 600 EUR. Considering the performance offered, I have to say: Price-performance are absolutely correct here. Many branded devices with comparable capacity and LiFePO4 cost significantly more.
Of course, savings are being made somewhere – probably in things like the app or perhaps a somewhat simpler display. But the FlashSpeed 1500 convinced me in terms of functionality and quality, so you can really a lot of power for the money gets.
Conclusion
After testing, the VTOMAN FlashSpeed 1500 leaves me with an extremely harmonious overall impressionThe mix of high capacity, fast charging technology and extensive features makes it a versatile companion for a wide range of applications.
Gerade campers, van life enthusiasts or garden house owners will quickly appreciate the benefits of such a device. Anyone who has a strong power station with a modern battery and top charging speed, plus a fair price, you can't go wrong with the FlashSpeed 1500.