This tiny startup wants to produce the world’s best AA battery: Captery’s supercapacitor recharges in 160 seconds, pollutes less and can last decades – and I want one right now – United Cultures

United Cultures

This tiny startup wants to produce the world’s best AA battery: Captery’s supercapacitor recharges in 160 seconds, pollutes less and can last decades – and I want one right now

October 19, 2025

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Captery’s efficient new AA/AAA battery promises a sustainable solution with ultra-fast charging and long durability.

Technology