Practical guides, technical analyses and everything you need to know about lithium batteries, their reuse and energy storage.
It is the number one objection from professional cell buyers: “can this even be shipped?” Yes — but not as an ordinary parcel. A lithium cell is legally class 9…
Stationary storage is not just for a house with solar panels. At business scale it answers very different problems — often more profitable ones, because the sav…
The two cylindrical formats dominate lithium pack assembly, and the choice between them is rarely explained beyond “21700 is newer”. True, and not enough. The f…
A second-life cell is sold with a grade: A, B or C. Behind that letter sits a measurement, not a commercial judgement — and knowing what it covers avoids two co…
“Recycling” has become the catch-all word for anything done with a battery nobody wants. Yet two radically different routes hide behind that term — and confusin…
A battery pack is useless while its energy stays as direct current. The inverter is the part that makes it usable: it turns the pack's DC into 230 V AC. It is a…
A second-life battery — is it waste? a used good? a new product? For years, this unanswered question held back an entire industry. European law finally settled …
When a lithium battery catches fire, the question that matters is rarely asked: where, exactly, did the problem start? In the cell? In the management electronic…
When we talk about lithium battery safety, we think first of the BMS — the electronics that monitor voltage, current and temperature. But what happens if the BM…
The intuition runs deep: a new battery must be safe, a used one must be a hazard. Yet recent scientific work on lithium cell safety tells a more nuanced — and s…
You get on your scooter, hit the throttle… and the range that used to be 20 km is now barely 5. Or worse: the battery won't charge at all. This is the scenario …
LFP, NMC, NCA, LCO… the world of lithium batteries is full of technical acronyms. But two chemistries dominate the market for electric mobility and stationary s…
You have installed solar panels and you watch with frustration as your meter feeds back to the grid the energy produced at noon that you will consume in the eve…
When talking about lithium batteries — new or second-life — the BMS is often mentioned but rarely explained. Yet it is the element that makes the difference bet…
Before throwing away a lithium battery or taking it to a recycling centre, many owners wonder if it still has value. The answer is often yes — but the amount de…
In France, more than 800,000 e-bikes are sold every year. With an average battery lifespan of 3 to 5 years, hundreds of thousands of batteries reach end-of-life…
One of the most common questions from solar panel owners considering storage is simple: how many kWh of battery do I need? The answer depends on your consumptio…
A solar energy bank is simply a storage battery connected to your photovoltaic panels to keep the electricity produced during the day and consume it in the even…
Your battery shows 100% charge but only lasts half the usual journey. Or your e-bike app estimates 60 km of range but you run flat at 35 km. These discrepancies…