The Miracle of the Removable Battery
It is truly a testament to our collective progress that we now celebrate the return of the threaded screw as if it were the discovery of fire. For the last decade, the cycling industry convinced us that the only way to light a path at night was to purchase a sleek, aerodynamic brick of aluminum and epoxy that becomes a paperweight the moment its internal chemistry gets tired. We accepted this. We nodded solemnly when the $60 light we bought in 2021 stopped holding a charge in 2024, and we dutifully tossed it into a junk drawer to leak slowly into the groundwater of our subconscious.
Now, a handful of brands are performing the unthinkable: they are letting you touch the battery. By moving toward standardized 18650 or 21700 cells—the kind of things you can actually buy without a corporate middleman—these companies are effectively quitting the subscription model of safety. It’s a bold move to suggest that a cyclist might possess the manual dexterity to operate a battery door, but here we are, living on the edge of technical autonomy.
Solving the Micro-Waste Riddle
Every time a non-serviceable bike light dies, an angel gets its wings, and a landfill gets a fresh serving of cobalt, nickel, and copper that could have lasted another five years. This is the 'micro-e-waste' phenomenon. It’s not as dramatic as a mountain of discarded refrigerators, but it’s more insidious because it’s small enough to fit in a kitchen trash can without triggering a sense of environmental guilt. We are literally burying high-grade energy storage because a $0.05 plastic clip was designed to be unopenable.
- The average commute-grade bike light loses 20% of its capacity after 300-500 charge cycles.
- In a sealed unit, that 20% drop is a death sentence.
- In a serviceable unit, it’s a $12 maintenance task that takes forty seconds.

Photo by Engin Akyurt on Pexels
Shifting the architecture toward user-serviceable parts isn't just a win for the trees; it’s an insult to the planned obsolescence business model that has kept the 'micromobility' industry afloat. If your equipment actually lasts a decade, you stop being a reliable quarterly data point for the marketing department. That’s the real tragedy here: the loss of predictable, recurring consumer failure.
The Audacity of Owning Things
There is something deeply offensive to the modern economy about a product that refuses to break. When you buy a light with a replaceable cell, you are opting out of the cycle of 'buy, use, lament, repeat.' You are suggesting that you, the lowly consumer, should have the right to maintain your own property. It’s a slippery slope. If we start repairing our bike lights, what’s next? Fixing our own blenders? Demanding that our phones don't require a heat gun and a prayer to open?
The industry calls this 'user-serviceable architecture,' which is a fancy way of saying 'we stopped gluing it shut.' It turns out that sustainability isn't always about high-tech carbon capture or complex carbon credits. Sometimes, it’s just about not being a jerk and letting people replace a worn-out component without requiring a degree in electrical engineering and a specialized prying tool made of proprietary plastic.
What This Actually Means
This shift represents a rare moment where common sense accidentally collides with corporate strategy. By adopting open battery standards, manufacturers are admitting that the 'disposable' era was a mistake—or at least, that enough people have realized it’s a scam that they can no longer hide behind the guise of 'waterproofing' as an excuse for permanent seals. You can make a light waterproof and still have a screw-on cap. Divers have been doing it since the 1950s. It isn't a technical hurdle; it was a profit hurdle.
Ultimately, the 'Right to Repair' in the bike lane is about reclaiming the dignity of the tool. A bike light should be a tool, not a fashion accessory with a three-year expiration date. If we continue to support brands that treat us like adults capable of handling a battery, we might actually reduce the flow of toxic junk into the earth. It's a small victory, but in a world designed to break, a light that stays on is a quiet, glowing middle finger to the status quo.
Quick Answers
Is it really that much better for the environment?
Yes, because the housing and circuitry of a light can last twenty years, while the battery usually dies in three; throwing away the whole thing is like buying a new car because the tires wore out.
Won't replaceable batteries make the lights bulkier?
Maybe by a few millimeters, but unless you're racing the Tour de France and need to save the weight of a single grape, you won't notice the difference.
Are these batteries hard to find?
Standardized lithium cells like the 18650 are used in everything from power tools to Teslas, so they are significantly easier to find than the proprietary 'internal' batteries they replace.



