Rick Hurst Full-Stack Developer in Bristol, UK

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Category: mobile working

From Lead Acid to Lithium: 15 Years of Battery Tech on the Road

Fifteen years ago, I sat under an awning at a Devon campsite, juggling cables, adapters, a 20Ah Halfords-branded lead acid power pack, and an ageing MacBook that would wheeze its way through two hours of work – on a good day. Back then, trying to work remotely from a campsite felt more like a mad experiment than a lifestyle. Every percentage of battery charge was a precious resource. Every cloudy day a threat to productivity. Yet, somehow, I made it work.

Fast forward to 2025, and it’s genuinely hard to believe how far portable power tech has come. These days, I’m running a MacBook Air with the M3 chip, which casually sips power through a full day of development, writing, and Zoom calls. The machine itself has a battery life I would have barely dared to dream of in 2010. But what’s really game-changing is how easy it is now to keep everything else powered alongside it.

Power That Keeps Up With the Lifestyle

My current mobile setup includes a Bluetti EB55 power station paired with a 200W AllPowers solar panel. On a sunny day (and even on a not-so-sunny one), this combo allows my wife and I to:

  • Charge two MacBook Airs.
  • Keep two smartphones topped up.
  • Boil water for several cups of coffee throughout the morning using my compact travel kettle.
  • Run a 12 volt compressor fridge (most of the time).

The travel kettle pulls about 650 watts and takes roughly five minutes to boil. While that’s a decent draw, it’s well within the EB55’s capability. And thanks to the solar panel – providing between 0 and 120+ watts depending on cloud cover – I can keep the energy flowing steadily throughout the day.

And all of this, more or less indefinitely. No more rationing screen time or hoarding battery percentages. No more panicked trips to the campsite loo block to find a working plug socket.

That said, I have found the limits of the EB55. When I’m using it to power the campervan fridge alongside everything else, it can get depleted within 24 hours on a cloudy day. I knew that would be the case going in, and in a way it’s helpful – it’s given me a clearer picture of what I’ll need to spec out a more capable, permanent solution for the VW T6 campervan setup.

Why the EB55?

One important advantage of incorporating a portable powerbank like the EB55 into my campervan setup is the flexibility to hunt out a sunny patch away from the van to get the best possible solar input. I do have some long leads which allow me to locate the solar panels away from the van, but using them reduces charging efficiency, so having a portable powerbank that can be easily relocated is a huge plus.

The Bluetti EB55 hit a sweet spot for me, mainly because of its price point. I wanted something portable and capable, but without dropping a grand or more on a bigger system. For the cost, the EB55 packs in an impressive set of features: multiple DC outputs, a 700W inverter (with a 1400W surge), and a compact form factor that fits easily in my van or under a table when I’m set up outside.

It’s also pulled double duty as part of my live music gear, powering both a guitar amp and a bass amp for mobile gigs with my surf-rock band, Los Savages. Not something I had originally planned for, but a very welcome bonus!

That said, if I were building a van power system entirely from scratch and didn’t want to wire in a full DIY lithium setup, one of the larger Bluetti models (like the AC200P or AC180) could easily be the central power hub for a campervan. These units can:

  • Power a 12V fridge.
  • Run interior lighting.
  • Keep a water pump going.
  • Provide USB and 12V outputs for devices.
  • And even power appliances like air fryers, induction hobs, or a hair dryer via the built-in pure sine wave inverter.

For a lot of people, these newer generation power stations are becoming viable alternatives to traditional campervan leisure battery systems, especially when paired with solar or shore power.

USB-C: The Quiet Revolution

One of the most underrated advances in recent years has been the standardisation around USB-C charging. Where I once needed a mishmash of proprietary cables, inefficient DC-DC converters, and power inverters to keep everything topped up, now I can charge almost all my key devices – laptops, phones, small powerbanks, even some bike lights. It’s streamlined my power setup massively and eliminated a lot of energy waste from voltage conversion. This might seem like a small change, but in practice, it’s made remote working and living on the road much more seamless.

Looking Back: A Timeline of My Mobile Power Evolution

Here’s a rough timeline of the gear that’s powered my digital nomad experiments over the years:

  • 2010 – Camping with a 20Ah lead-acid jump starter and a power inverter. Preparation & charging
  • 2010 – One week running on battery and solar power. A week on battery and solar power and Day 2
  • 2010 – Reflections after 6 weeks on the road. Lessons learned
  • 2013 – T25 mobile office experiments. T25 mobile office
  • 2013 – Early solar dreaming with the Solar Gorilla. Solar Gorilla, Nexus 4 and solar daydreams
  • 2018 – Got back into van life with a VW T4 that included a large lead-acid leisure battery, charged via a simple split-charge relay or 100W portable solar panel. We have a van again
  • 2018 – Running a home office using solar power. Part 1
  • 2021-2025 – Bluetti, EcoFlow and Jackery power stations become mainstream in these kind of set-ups.
  • 2025-2026 – Planning and building out a full VW T6 campervan lithium battery and solar setup

What’s Next?

Although I’m a weekend warrior who works mostly from my garden shed, I’m building this system with the future in mind. I want to be ready for longer-term vanlife digital nomad adventures when the opportunity arises.

With the VW T6 campervan conversion underway, I’m pushing into more permanent off-grid territory. Here’s a teaser of what I’m planning:

  • A LiFePO4 battery permanently installed under the driver’s seat – chosen for both size and price-point.
  • A DC-DC charger compatible with the van’s smart alternator, making alternator charging the primary source of power (especially important in UK winters).
  • Wired to drive the lights, fridge, water pump (for the tap, not the one under the bonnet!), and multiple USB-C charging points.

I’m not planning to add a mains inverter to this setup- at least for now. For 240V needs I’ll continue to use the Bluetti (and may upgrade to a larger model to handle higher loads needed for e.g. an air fryer or induction hob).

I may also add a solar charge controller and roof-mounted solar later, but given the limited winter sun in the UK, alternator charging will remain the most viable option for year-round reliability.

I’ll be documenting that process in detail soon, so stay tuned. that process in detail soon, so stay tuned.

Introducing Freerange Freelance!

Those of you who have followed a link to campervanthings.com might be confused to see a different domain name and site title “Freerange Freelance”. Let me explain!

The first version of this blog was called “Rick on the Road”, which started as a travel blog years ago, when my wife and I started looking at the idea of spending the summer touring france, with our (then) young kid while I carried on working as a freelance web developer, attempting to keep an old plastic macbook with a two-hour max battery life charged from an inadequate portable solar panel, and attempting to keep in touch with clients and upload code over sketchy campsite wifi.

After that trip, the blog lost momentum until we bought a camper van and I enthusiastically relaunched it as “camper van things”, and wrote almost exclusively about camper van things.

It then lost momentum again, particularly after we sold the camper. This year having bought another van I thought I would give it a refresh and start writing again, and in doing so, I decided that the name of the blog didn’t really reflect what this blog is about.

So what is this blog about then?

I’ve worked (mostly) as a freelance web developer for over ten years now and the goal has always been flexible working. I’m lucky enough to have built a career that revolves around the internet and remote-working tools, and so most of the time I only need a charged laptop and a decent internet connection (wifi or 3G/4G)  to do my job. Moreover, I prefer flexible work hours, and not having to commute to an office “day job”. All of those aspirations can be difficult to achieve sometimes, which I will talk about on this blog.

But you’re still going on about camper vans?

Yep! As far as i’m concerned, a camper van makes the perfect mobile office, and is the best way to combine travel, adventure and freelance work. Plus I just love camper vans, so they will still feature prominently, particularly the one we own.

Freerange Freelance

Naming a blog is almost as difficult as naming a band. My wife is also freelance (TV/Video production/Copywriting) and we threw around a few ideas before coming up with this, then impulsively reserving the domain name and instagram handle. Twitter username character limit wasn’t long enough, so I left that one as @campervanthings for now. I think Freerange Freelance better covers the scope of this blog and any associated social media accounts.

Web development stuff

I’ll refrain from talking too much about web development on this blog, as I have another blog for that – if you’re interested in code, take a look at rickhurst.co.uk.

You can take a man out of a camper van but…

Rocky T25/T3/Vanagon

It’s sad I know, but while visiting the warehouse where Rocky is laid up for a while, I got nostalgic for my second home, and spent a while sat inside, working on my laptop, listening to some music, and had some lunch!

I also removed the bike rack, bumpers, grilles etc. ready to attack the bodywork with an angle grinder (flap disc only – nothing too drastic!)

Surviving a rainy campervan trip

rainy day in the campervan

I’m sat writing this in deepest Norfolk, using the passenger swivel seat as my office chair, while on the other side of the curtain (seperating the cab of the van from the back), my wife and kid watch a film on a laptop. Outside it’s persistent drizzle mixed with howling wind. Our bright orange sun canopy lays miserablly on the grass outside the van alongside the wet bag of charcoal and soggy camping chairs. Despite setting it up in “ridge tent” mode to cope with rain, the wind unravelled the granny-knots I used to attach the guy ropes and by morning it was hanging pathetically from the van.

We also made the mistake on this trip of not bringing any kind of tent/ standalone awning, so later on when we go for a drive, we have no choice other than to either take the soggy stuff with us in the van, or leave it on site to get soggier.

We don’t like the idea of a proper driveaway awning hitched right up to the van, we like to be able to sit in the doorway of the van and look out at the view rather than into a tent. We usually bring a Quechua seconds base pop-up shelter, which gets used as a kind of shed, and in this case even a small pop-up tent would be handy, but i’ve heard good things about the Coleman event shelter, and i’m now wondering if this could be the solution for a standalone rainproof canopy. I’ve heard good things about them and they are apparently very sturdy and hopefully won’t collapse in bad weather.

So we haven’t got it right with the canopy/awning/gazebo this time, but the things we have got right:-

  • We have electric hook-up on this site, so the electric fan heater is keeping us toasty. An oil filled radiator would be a less noisy solution. Without the hookup we could fall back on the propex heater. The fan heater can also be used to demist the front window before we go for a drive.
  • We have a full gas bottle, and the kettle is being used to it’s full potential.
  • Loads of films and tv-series on the laptop, there is no wifi and zero mobile reception here, so we couldn’t rely on streaming services or being able to download anything new.
  • As i’m doing a bit of work on this holiday, I made sure I had all I needed on my laptop to do the work without an internet connection – no point relying on cloud-based services. As rainy days are ideal times for fitting in a bit of work, we brought along a second laptop, so that work time for me can also be film-time for my family.
  • Board games! For when the films have run out.

Before we got Rocky, we did a lot of camping in tents, and I have to say after a couple of days of rain like this, we’d probably pack the soggy tents into the car and call it a day, but in a campervan, especially a warm leak-free campervan with a supply of food, tea and entertainment, we can still have an enjoyable trip.

VW T25 Mobile Office

office with a view - my VW T25 mobile office!

After years of working from tents and the passenger seat of a VW Beetle, I finally have a luxury mobile office! Before you get excited wondering what technical wizardry i’ve added to Rocky, so far all i’ve needed is my laptop and the table. The picture above is a bit of a “lie” – the spot is in a car park just across the road from one of my clients. I had a decent wifi signal so could do work on the office network without needing a VPN. Although I have a couple of solutions – a mains inverter and a DC-DC transformer – for keeping my macbook air charged from a 12 volt socket, I hadn’t got either with me, and had somehow managed to start with only a 50% charge. When it got too low after a couple of hours, I scurried back into the office and plugged back into the mains.

While it lasted I had an office with a beautiful view over Blagdon lake, a coffee pot on the stove, decent sound system (i’ve wired in a couple of old hi-fi speakers under the back seat as an experiment) and comfy seat to work from in my new T25 mobile office. Predictably, i’m now researching solar panels, leisure batteries (Rocky already has one, but a second one would be good) and other tech such as wifi antennae and 3G signal boosters to kit Rocky out for some more off-grid mobile working adventures.

Later the same day, I got to use Rocky as a mobile office again – with an hour and a half “downtime” to use while my kid was at gymnastics, I sat and got some work done in the sunny car park. It turned out to be very productive, stopping only to fit the new Fiamma bike rack that arrived yesterday, and a well-deserved cup of tea or two of course…

Gone with the Wynns


screengrab of gone with the wynns

Nikki and Jason Wynn sold it all, packed up their 2 cats, bought an RV, and hit the road!

Another inspirational travel blog by a young couple who are now full-time RVers. Although their first campervan was a humble T25/T3/Vanagon, these days they are travelling in something much bigger!

I enjoy reading about how they are turning the lifestyle into a business, and make some income on the road by producing videos, doing reviews etc. – food for thought!

They have produced some great videos – if you are looking for some ideas where to go on an RV roadtrip in the U.S., go and check out Gone with the Wynns

Anywhere Working Bristol

Rick Hurst talking about working on the road

Last night I gave a short talk at the Anywhere working Bristol event at The Birdcage. I spoke about my experiences of working on the road throughout our summer 2010 trip touring France in the beetle, while keeping my freelance business running from a tent, cafe’s and bars using a laptop, smartphone and various other gadgets. This was before we bought the campervan – hoping to do more of the same later this year in Rocky, but with the luxury of having my own “mobile office”, including such luxuries as leisure battery and fridge amongst other things.

There were also several other interesting talks, covering experiences and the culture of flexible working.

Worliday? I think I need a holiday

attempting another worliday in my favourite field

I read this article by Lucy Kellaway on the BBC news site – she invented the term “worliday” for a working holiday and is very enthusiastic about the idea, advocating it as the way forward. If you’ve read any of my previous articles about my experiences working throughout the summer last year on a six week road trip in france, you may have picked up that there are both good and bad points – I’ve written about the importance of “work/ loaf balance” here.

This summer we didn’t make it to france, but a couple of weeks ago I was working from borrowed dining room tables, cafe’s and the platform of a skateboard ramp in Ireland, and i’m writing this blog post from a field in Devon. So i’m still trying to make the nomadic working thing work, but this year I think fatigue is starting to creep in – the Ireland holiday was very social, staying with friends and house-sitting, but missing so much of what was going on around me bought home to me just how much of the actual holiday bit of a working holiday, is compromised by being obliged to work.

When I arrived at my favourite devon “secret campsite” this morning, my phone messages revealed that I had somehow missed not one but two client meetings in Bristol – my feelings of spontaneity were soon replaced by guilt. Then my wife and kid headed off to the beach, while I have ended up chain drinking tea in a camping chair, sending grovelling emails and grumpily punching keys on my laptop as I deal with technical issues that have cropped up on various websites.

One of the points that Lucy makes is that by working on holiday, you can justify going on holiday more often – I agree with this to an extent, but currently it feels more like I need longer and more holidays, so that I can scrape together enough actual holiday time. I think the long holiday worked last year because the time I spent not working equated to about the length of a normal holiday.

I start to relax a bit more as I get a bit of work done, but I know that when it’s time to down tools I will find it hard to switch off again, and tomorrow if anything delays me getting started with my work, anxiety will set in again – what I really need right now is a holiday!

(The pop-up tent in the photo above is a Quechua Base Seconds)