[rasz]

Apparently Honda IMA (NiMH) 1 and 2nd gen not only lacks active thermal management, it also doesnt have any BALANCE management!?!?!

2006-2011 Honda Civic IMA battery repair WITHOUT buying new cells https://www.youtube.com/watch?v=SGfQchiLtG8

Its almost like Japanese do it on purpose to push BS Hydrogen.

[garaetjjte]

NiMH packs are usually used without balancing, because in principle they should equalize at each full charge. Maybe the charger circuit is too gentle and terminates charging too early with low ΔV when not every cell is fully charged yet.

I think methods used in that video are somewhat dodgy. When dealing with severely unbalanced packs care should be taken when discharging, as unbalanced cells could go below 0V and become damaged by reverse charging. And while cooling them during charging might keep the temperature in check, it probably doesn't completely prevent internal outgassing and pressure buildup. Very long charge at low current would likely be safer option.

[Tostino]

Their hydrogen obsession has set the world back decades.

[rswskg]

How?

[Tostino]

The promotion of hydrogen vehicles by automakers, particularly in the late 1990s and early 2000s, served as an effective delay tactic that slowed the transition away from internal combustion engines. Major oil companies like Shell and BP made splashy announcements about hydrogen investments and fueling infrastructure, yet these remained largely symbolic. Shell's "Hydrogen Network" consisted of just a handful of stations even years after announcements.

Meanwhile, automakers like GM heavily promoted hydrogen initiatives like Project Driveway, generating positive PR while maintaining their core ICE business. These companies knew that the fundamental challenges of hydrogen, including its energy intensive production, lack of infrastructure, and extremely high cost of fuel cells, made it impractical in the near term. Yet they used hydrogen's theoretical promise to argue against investing in more immediately viable technologies like battery electric vehicles.

This created a "vaporware" effect: the industry could claim to be pursuing clean alternatives while avoiding meaningful investment in technologies that could have disrupted their existing business model. The resources and attention diverted to hydrogen could have accelerated battery development and charging infrastructure years earlier. By the time automakers finally embraced EVs in earnest in the late 2010s, they had effectively delayed the transition by 20 years.