These two guys built the world’s smallest (and cutest) camper on a bicycle
Living the RV life is a dream for many people. Taking a camper out on the open road, exploring at your own pace and sleeping at impromptu sites along the way, it all carries a certain romantic charm. But what if you’re not super excited about the whole “motor vehicle” part of the RV adventure? Well, then you just might take a similar route to these two handy fellows who built their own mini-RV on the back of a bicycle.
Or perhaps a tricycle is the more appropriate term, since this is really more of a trike-camper.
Chris and Jeff from the popular YouTube channel Dangie Bros built the contraption with a single goal: taking a 100-mile (160 km) road trip in two days.
The camper itself, which they estimate to weigh around 500 lb. (227 kg), is largely built out of plywood and aluminum siding. It features a kitchen area with working sink and gas stove, electrical outlets for plugging in devices, a roof vent with electric fan, several ventilation windows, and a single door.
A bed can be assembled and broken down in the top “floor” using a few pieces of lumber and plywood, though the video below shows that it has a tendency to deconstruct itself without warning in the middle of the night.
The rather ambitious goal of a 100-mile road trip in two days started to look a bit far reaching once they realized how hard it was to pedal the micro-RV up even a slight incline.
We’ve seen tiny trike campers before, but they always have some form of electric assist or full electric drive. In this case, the pair were attempting to do the entire trip on pedal power alone. To make matters worse, while they were able to trade off riders to rest their legs, the guy taking a breather served as dead weight in the back of the camper. On uphill sections he would have to get out and help push from behind.
Most of the journey was planned to use a rather nice network of bicycle highway, giving cyclists the rare opportunity to commiserate with drivers getting stuck behind a slow-moving RV.
But the project also highlighted the importance of safe, unobstructed cycling infrastructure. Most people don’t need quite as much space for their bikes as this mini-camper does, but it demonstrates how vulnerable cyclists can be when forced to share the road with cars and trucks.
For example, at one point they had to use a sidewalk on the side of a busier road but were stopped in their tracks when a sign post that extended into the air over the sidewalk prevented them from passing. It forced the mini-RV to roll backward until they could find another route.
Between stops to visit fast-food drive-throughs as well as making occasional repairs, they only made it 10 miles (16 km) in the first day. They ended up overnighting in a Walmart parking lot after unsuccessfully trying to camp in a residential neighborhood and being politely ushered on by local police.
In the morning, they bought a cheap pedal bicycle and used a tow rope to ride out in front of the camper, pulling it along. Doubling the man-power of the mini-RV helped the pair make more headway on the second day, eventually covering around 25 miles total before calling it quits (and having to return within their wives-imposed timeline).
The project isn’t the most glamorous way to go camping, but it did demonstrate that a massive RV or even a smaller camper van isn’t necessary for carrying your own bed, kitchen, and living room with you on the road. A mere pedal tricycle proved more or less up to the task.
via: Cleantechnica
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Kia’s electric SUVs are taking over. The EV3 is the best-selling retail EV in the UK this year, giving Kia its strongest sales start since it arrived 34 years ago. And it’s not just in the UK. Kia just had its best first quarter globally since it started selling cars in 1962.
Kia EV3 is the best-selling EV in the UK through March
In March, Kia sold a record nearly 20,000 vehicles in the UK, making it the fourth best-selling brand. It was also the second top-seller of electrified vehicles (EVs, PHEVs, and HEVs), accounting for over 55% of sales.
The EV3 remained the best-selling retail EV in the UK last month. Including the EV6, three-row EV9, and Niro EV, electric vehicles represented 21% of Kia’s UK sales in March.
Kia said the EV3 “started with a bang” in January, darting out as the UK’s most popular EV in retail sales. Through March, Kia’s electric SUV has held on to the crown. With the EV3 rolling out, Kia sold over 7,000 electric cars through March, nearly 50% more than in Q1 2024.
The EV3 was the best-selling retail EV in the UK in the first quarter and the fourth best-selling EV overall, including commercial vehicles.
Starting at £33,005 ($42,500), Kia said it’s the “brand’s most affordable EV yet.” It’s available with two battery packs, 58.3 kWh or 81.48 kWh, good for 430 km (270 miles) and 599 km (375 miles) of WLTP range, respectively.
With new EVs on the way, this could be just the start. Kia is launching several new EVs in the UK this year, including the EV4 sedan (and hatchback) and EV5 SUV. It also confirmed that the first PV5 electric vans will be delivered to customers by the end of the year.
Electrek’s Take
Globally, Kia sold a record 772,351 vehicles in the first quarter, its best since it started selling cars in 1962. With the new EV4, the brand’s first electric sedan and hatchback, launching this year, Kia looks to build on its momentum in 2025.
Kia has also made it very clear that it wants to be a global leader in the electric van market with its new Platform Beyond Vehicle (PBV) business, starting with the PV5 later this year.
Earlier today, we learned Kia’s midsize electric SUV, the EV5, is the fourth best-selling EV in Australia through March, outselling every BYD vehicle (at least for now). The EV5 is rolling out to new markets this year, including Canada, the UK, South Korea, and Mexico. However, it will not arrive in the US.
For those in the US, there are still a few Kia EVs to look forward to. Kia is launching the EV4 globally, including in the US, later this year. Although no date has been set, Kia confirmed the EV3 is also coming. It’s expected to arrive in mid-2026.
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Environment
Podcast: Tesla’s disastrous deliveries, more Trump tariffs, EV delivery numbers, and more
In the Electrek Podcast, we discuss the most popular news in the world of sustainable transport and energy. In this week’s episode, we discuss Tesla’s disastrous deliveries, more Trump tariffs, EV delivery numbers, and more.
The show is live every Friday at 4 p.m. ET on Electrek’s YouTube channel.
As a reminder, we’ll have an accompanying post, like this one, on the site with an embedded link to the live stream. Head to the YouTube channel to get your questions and comments in.
After the show ends at around 5 p.m. ET, the video will be archived on YouTube and the audio on all your favorite podcast apps:
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Charging your EV in freezing weather could soon become dramatically faster, thanks to a big breakthrough from the University of Michigan engineers.
Neil Dasgupta, U-M associate professor of mechanical engineering and materials science and engineering and corresponding author of a study published in Joule, and his team have developed an innovative battery structure and coating that can boost lithium-ion EV battery charging speeds by a whopping 500%, even at frigid temperatures as low as 14F (-10C). “Charging an EV battery takes 30 to 40 minutes even for aggressive fast charging, and that time increases to over an hour in the winter,” Dasgupta explained. “This is the pain point we want to address.”
Freezing weather has traditionally been harsh on EV batteries because it slows down the movement of lithium ions, resulting in slower charging speeds and reduced battery life. Automakers have tried thickening battery electrodes to extend driving range, but this makes some of the lithium hard to access, making charging even slower.
Previously, Dasgupta’s group sped up battery charging using lasers to carve pathways around 40 microns in size into the graphite anode. This allowed lithium ions to reach deeper into the battery more quickly. However, cold-weather performance still lagged because a chemical layer formed on the electrodes, blocking the ions. Dasgupta compares this barrier to “trying to cut cold butter,” making charging inefficient.
To solve this, the team coated the battery with a thin, glassy material made of lithium borate-carbonate—only 20 nanometers thick—which prevented the problematic chemical layer from forming. Combined with the microscopic channels, the results were groundbreaking: the modified batteries retained 97% of their capacity even after 100 fast-charging cycles in freezing temperatures.
“We envision this approach as something that EV battery manufacturers could adopt without major changes to existing factories,” Dasgupta noted. “For the first time, we’ve shown a pathway to simultaneously achieve extreme fast charging at low temperatures, without sacrificing the energy density of the lithium-ion battery.”
This innovation could tackle one of the biggest concerns holding potential EV buyers back.
The new battery tech is moving closer to commercialization, supported by the Michigan Economic Development Corporation’s Michigan Translational Research and Commercialization (MTRAC) Advanced Transportation Innovation Hub. The research devices were built at U-M’s Battery Lab and studied with help from the Michigan Center for Materials Characterization.
U-M Innovation Partnerships assisted the team in applying for patents, and Arbor Battery Innovations has licensed the technology for market deployment. Dasgupta and the University of Michigan hold financial stakes in Arbor Battery Innovations.
Read more: California now has nearly 50% more EV chargers than gas nozzles
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