On October 16, A123, a Massachusetts-based company that designs, develops, manufactures, and sells rechargeable lithium-ion batteries and energy storage systems, filed for bankruptcy protection.

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With all the electronic devices in our lives these days, it makes environmental (and financial) sense to switch to rechargeable nickel metal hydride (NiMH) and lithium ion (Li-Ion) batteries.

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Nereus, on the other hand, uses rechargeable lithium-ion batteries, similar to those used in laptop computers, for power and a single hairs-width fibre optic cables - borrowed from Torpedoes - for control and telemetry.

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