LED bulbs powered by old laptop batteries are improving life for Bangalore's working poor.
Bangalore-based IBM Research India has a bright idea for keeping discarded lithium laptop batteries out of landfills: repurposing their cells as energy supplies for the powerless.
The idea, presented at this weekend's fifth annual Symposium on Computing for Development (DEV 2014) in San Jose, has passed a small proof-of-principle test run with Bangalore's working poor.
The IBM researchers used disused lithium batteries to create a new device they dubbed the UrJar — a multilingual monicker pairing the Hindi word urjafor "energy" with the word "jar."
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