News, comparisons, practical guides and in-depth features: everything you need to choose well and get the most out of your batteries, power banks, power stations and solar panels.
Welcome to the Best Batteries blog. For more than ten years, mobile energy has been our job: power banks, portable power stations, solar panels, cells and chargers hold no secrets for our team. This blog is where we share that expertise, not to drown you in technical detail, but to help you make the right choices, with confidence. You will find four main families of articles: News to follow launches and market trends; Comparisons to settle the models, methodology in hand; Guides to answer your practical questions (runtime, safety, charging, maintenance); and Insights to understand in depth the technologies and stakes of portable energy. Enjoy the read, and feel free to explore our product pages to go from theory to purchase.
A power bank looks simple, right up until you have to pick one. Capacity, power, MagSafe, fast charging, airline rules: the criteria pile up fast. Portable energy has been our job for more than ten years, so here, jargon-free, is the method we use to find the power bank that truly fits your needs.
Guillaume Hoarau•
July 15, 2026
Two power stations of around 1,000 Wh, two best sellers, two philosophies. Should you bet on the fast charging and modularity of the EcoFlow Delta 2, or the ruggedness and power of the Bluetti AC180? We put them head to head, criterion by criterion, to help you pick yours.
Julien De Jurquet•
July 14, 2026
Cheaper, more resistant to cold, made from a material found in abundance: the sodium-ion battery is generating a lot of buzz. A revolution on the way, or simply a complement to lithium? We take stock of a technology that is only just leaving the labs.
Yoni Marchal-Laporte•
July 13, 2026
A good power bank means never running flat far from an outlet. But between the ultralight for hikers and the heavyweight that charges a laptop, the right choice depends on how you travel. Here is our field-tested selection of the five best travel power banks of the moment.
Guillaume Hoarau•
July 12, 2026
Since late 2024, the European Union has required a single charging port on almost every portable electronic device: USB-C. No more drawer full of incompatible cables. Here is what this rule really changes, for your chargers, your cables and your power banks.
Pierre Freysinger•
July 11, 2026
They are often confused, yet they do not share the same lifespan, weight or safety. Conventional lithium-ion or lithium iron phosphate (LiFePO4): this feature breaks down, jargon-free, what really sets them apart, and helps you know which one powers (or should power) your devices.
Julien De Jurquet•
July 10, 2026
To be self-sufficient in electricity on the road, two schools compete: the portable power station, silent and clean, and the generator, enduring but noisy. Which one should you choose for your motorhome or van? We weigh the pros and cons, use by use.
Gilles Caron•
July 9, 2026
Power bank, laptop, spare batteries: what can you really take on a plane, and where? Between watt-hour thresholds and the ban in the hold, we sum up everything you need to clear security with peace of mind and never get your battery confiscated.
Guillaume Hoarau•
July 8, 2026
Recharging your devices, or even a whole power station, from the sun: the dream of self-sufficiency is appealing. But between the power printed on a panel and what it actually produces, the gap can be surprising. As a solar engineer, I will tell you straight what solar charging allows, and what you should not expect from it.
Julien De Jurquet•
July 6, 2026
On one side, Anker, the pioneer turned reference. On the other, Ugreen, the challenger shaking up the market with fast charging and aggressive prices. Which one deserves your trust for your power banks and chargers? We compare the two brands with no bias.
Yoni Marchal-Laporte•
July 5, 2026
20,000 mAh on the label, but barely two smartphone charges: normal, or a scam? The capacity advertised on a power bank and the energy you actually get back are two different things. This feature explains why, how to read the real figures, and above all how to spot inflated capacities.
Yoni Marchal-Laporte•
July 4, 2026