Long Range E-Bike · Jacques Mattheij
Hacker News
February 26, 2026
AI-Generated Deep Dive Summary
E-Bikes Offer a Sustainable Alternative to Electric Cars
Electric bikes (e-bikes) are gaining traction as a more environmentally friendly and practical option for urban commuting compared to electric cars. While e-cars have their advantages over internal combustion engine vehicles, e-bikes stand out for their lower environmental impact and suitability for medium-range travel. In countries like the Netherlands, e-bikes are selling at an even faster pace than electric vehicles, thanks to their versatility and cost-effectiveness.
However, e-bikes come with limitations. Most models have a top speed of 25 km/h and limited range due to battery technology. Typically powered by lithium-ion cells (18650 variety), these batteries offer modest capacities, with the best affordable options reaching around 3400 mAh each. A standard e-bike uses 40-50 such cells arranged in a 10S4P or 10S5P configuration. This setup limits range, as seen in Jacques Mattheij’s experience: his first e-bike with a 500 Wh battery could only cover 55 km on a single charge before needing a second battery for longer trips.
Mattheij explored alternatives like S-Pedelecs (a hybrid between a bike and moped) but faced challenges such as licensing requirements, safety risks, and even worse range issues due to higher speeds. Despite these drawbacks, e-bikes remain appealing for their ability to reduce car usage by over half, as Mattheij achieved with his initial model.
The quest for longer ranges led Mattheij into the technical complexities of battery systems. He discovered that
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Originally published on Hacker News on 2/26/2026