EcoFlow Power Kit review: off-grid living made easy

  News, Rassegna Stampa
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There’s never been a better time to become a digital nomad.

Many employers not named Elon Musk now offer flexible work-from-home arrangements, enacted during the pandemic and made permanent in 2022. Ironically, Musk’s little Starlink RV service has been a boon to remote working by bringing relatively fast internet to great swaths of digital wilderness, even while driving. And for those looking to go truly remote, dozens of countries, like Spain, Barbados, Namibia, and Malaysia, now offer temporary residency permits to digital workers of foreign-based employers. 

You can also take your nomadic existence off the grid thanks to advances in solar panels and batteries. High-capacity batteries now charge faster, last longer, weigh less, and offer improved safety thanks to the adoption of lithium iron phosphate (LFP or LiFePO4) chemistry. That’s good because you’ll be needing lots of power if you want to live and work from the beach, forest, or mountain top comfortably.

But you can’t count on the sun’s power alone. For extended off-grid stays, you’ll need the ability to replenish those batteries with whatever resources you have at your disposal, be it AC outlets at an RV park (aka, “shore power”), your van’s alternator, and even a diesel generator or wind turbine in a pinch. That’s where the new EcoFlow Power Kits come in. 

EcoFlow announced its expandable Power Kit series back in June as an all-in-one turnkey solution to easily bring power to remote cabins and RVs. It’s meant to improve and simplify everything from planning and installation to operation compared to bespoke electrical systems sold today by industry stalwarts like Victron Energy. 

In particular, EcoFlow claims that its Power Kits can fit “any van size” and be set up “five times faster” than traditional systems. So I put those claims to the test with the help of both novice and professional installers.

The novice installation was done in an old Ford Transit Westfalia Nugget — the van you rebuild because your parents sold it to you cheap — by Roel, a regular guy capable of installing a light switch or two. The professional installation was done in a Mercedes-Benz Sprinter — the gold standard for vanlifers — by Fabian van Doeselaar, the owner of Origin Travelvans.

Fabian came away so impressed that he’s redesigning the Victron-based interiors of his custom adventure vans to accommodate the EcoFlow Power Kit. It’s not a perfect system, especially for Roel’s smaller van, but EcoFlow’s solution has far more pluses than minuses.

Just make sure the employer that supports your dreams of escapism also pays well. EcoFlow Power Kits aren’t cheap, with prices starting around $4,000. And that’s before you add any solar panels.

EcoFlow sells its Power Kits with a wide range of configurations that can scale for different needs. The base configuration comes with the Power Hub, cables, and choice of batteries for a total capacity between 2kWh and 15kWh. 

The EcoFlow Power Kit. From left to right: one 5kWh battery, the battery cable, and the Power Kit box. Below the box is the console display and AC/DC Smart Distribution Panel and cover. Then you see the included Power Hub cabling, and the Power Hub itself.

a:hover]:shadow-highlight-franklin [&>a]:shadow-underline-black dark:[&>a:hover]:shadow-highlight-franklin dark:[&>a]:shadow-underline-white md:text-30″>Power Kit Specifications (US)

Power Hub:

  • 48V system automatically steps down for 12V/24V systems
  • Power Hub measures 11.8 x 18.9 x 5.5in (30 x 48 x 14cm); 31lbs (14kg)
  • Supports between 2kWh and 15kWh of EcoFlow LFP battery capacity
  • DC main output: 13.6V/70A, 1000W max; 26.4V/60A, 1600W max
  • AC main output: Pure Sine Wave 3600W (Surge 7200W); it’ll also power some appliances up 5000W with reduced performance
  • Two solar inputs, each with support for up to 15-60V/30A, 1600W of power
  • One combined alternator / solar input, supporting either 13V-60V/60A, 1000W max from the vehicle’s alternator or 1600W of solar
  • One AC input, supporting up to 3000W/30A from shore power (but most RV parks won’t let you charge at 30A)
  • One AC output, supporting up to 2400W
  • Two battery ports for EcoFlow’s LFP batteries
  • One combo port that works with both EcoFlow LFP batteries and the company’s dual-fuel Smart Generator (for 1800W of emergency input)
  • Comes with five plug-and-play cables that reach lengths of 15ft and 20ft and plug directly into the Power Hub
  • Available in both EU and US configurations
  • Power button, AC out on / off, DC out on / off, and five status lights showing AC out, DC out, PV (solar) in, alternator in, and AC in

LFP batteries:

  • 2kWh battery is rated for 3,000 cycles before hitting 80 percent capacity
  • 2kWh battery measures 11.2 x 13.7 x 7.8in (28.4 x 34.8 x 19.8cm) / 37lbs (16.8kg)
  • 5kWh battery is rated for about 3,500 cycles before hitting 80 percent capacity
  • 5kWh battery measures 11.8 x 19.7 x 10.2in (30 x 50 x 26cm ) / 90lbs (41kg)
  • Both batteries are IP54 water and dust resistant
  • Both batteries are auto-heated for continuous charging even in subzero temperatures
  • Batteries can only be connected to the Power Hub in parallel
  • EcoFlow provides a selection of brackets to securely stack the batteries or mount side by side

AC/DC Smart Distribution Panel:

  • 8.3 x 13.9 x 3.9in (21 x 35.3 x 9.9cm) / 5.7lbs (2.6kg)
  • DC output: 12 fused DC positions (six positions controllable via Power Kit console and app)
  • AC output: six AC positions, 20A max each
  • IP21 dust and water resistance

The Power Hub is the brains of the system and provides a central point of connectivity for the batteries and all of the inputs and outputs. It combines several functions that would typically require their own boxes and external wiring. Inside the Power Hub, you’ll find three MPPT solar charge controllers, an inverter charger, a DC-DC step-down converter, and a DC-DC battery charger. For many installations, this all-in-one approach is an advantage, but when space is severely limited, it can be advantageous to have multiple smaller devices that can be tucked into any available nook (more on that later).

Optionally, you can add both a $499 AC/DC Smart Distribution Panel and a $349 wired seven-inch touchscreen console display for more granular control over your vehicle’s electrical devices. The console might be redundant for some since it just mimics functionality already included in the excellent EcoFlow app, but others will gladly pay to have a dedicated display mounted inside their van or tiny home.

Up to three batteries can be plugged into the Power Hub, but you can’t mix 2kWh batteries with 5kWh batteries. The batteries are heated, allowing them to both discharge and charge when the temperature drops below freezing outside without affecting their performance or lifespan. Charge heating turns on automatically when temperatures fall below 32 degrees F (0 degrees C) and consumes power from the external charging source (such as solar panels), whereas the battery powers discharge heating, which is why it must be enabled manually to avoid unexpected battery depletion.

Power Kit bundles don’t include any solar panels. The Power Hub is designed to easily connect to any of EcoFlow’s own rigid, flexible, or portable solar panels, but it also works with third-party panels (using standard MC4 connectors or adapters) so long as their maximum open circuit voltage doesn’t exceed 150V. It supports up to 4800W of total solar input spread across three 1600W ports.

The Power Hub is a 48-volt system that uses a step-down DC-DC module to make it compatible with campers built around common 12V or even 24V systems. 48V has a number of advantages including lower current for the same power output, allowing for much thinner (and lighter) cables to be used throughout the vehicle. 

The Power Hub inverter is capable of producing up to 3600W (7200W peak), which is enough to easily power just about any AC appliance you’d want to install inside the van, including induction cooktops and air conditioners. (Yes, EcoFlow makes one of those, too.) The Power Hub can even power AC devices drawing up to 5000W thanks to EcoFlow’s X-Boost tech, which lowers the output voltage, thereby reducing the performance of high-wattage devices. It’s best to think of X-Boost as a safety net that could occasionally get you out of a jam.

Power Kit components on left mirrored by a similar Victron system (with much smaller battery capacity) in blue on the right. EcoFlow requires a lot fewer components.

The image above shows all of the EcoFlow Power Kit components laid out like a mirror with a comparable system (with much smaller battery capacity) from Victron Energy used in Fabian’s vans. Victron’s little blue boxes are fantastically capable and scalable, which has made them the go-to brand for van builders around the world. But they require knowledge approaching that of an experienced electrician in order to choose the right components and then mount and wire them together correctly. On the other hand, professionals like Fabian can fine-tune Victron configurations to the exact needs of a particular build, which can save money and maybe even a little space.

Some other notable features:

  • Automatic Bypass mode sends externally connected AC power directly to AC appliances in the van while the batteries charge.
  • The Power Hub’s alternator port is wired directly to the van’s starter battery (which is connected to the vehicle’s alternator). The Power Hub stops drawing current when the vehicle is idle by default, although that can be overridden in the app.
  • EcoFlow’s iOS and Android app works over Bluetooth or 2.4GHz Wi-Fi to manage inputs and outputs with impressive granularity.
  • An integrated Battery Management System (BMS) monitors temperature, voltage, and current to keep everything operating safely.
  • EcoFlow tells me that Power Kits work with some wind turbines in the 12-60V, 30A range to charge with DC. EcoFlow is exploring a portable wind turbine product for possible release sometime in 2023.
  • EcoFlow sells a $1,399 dual-fuel Smart Generator that can plug into the Power Hub for emergency AC or DC charging power. It’ll continue to run for as long as you have either propane or diesel to fuel it.
The Power Hub is the central point of connectivity. The EcoFlow Smart Generator (5) can also be a third battery like Fabian’s setup.

Both Roel and Fabian had the same comment upon receipt of their review units: “It’s all very Apple-like.” The experience starts with a gee-whiz unboxing that reveals great looking hardware and an app experience that overdelivers — all highly unusual in the world of van builders.