QardioCore is outfitted with a rechargeable Lithium-ion battery. Lithium-ion batteries weigh less and last longer than older type batteries.
QardioCore's battery is designed to retain up to 80% of its original capacity even after two years of every day use.
Do not disassemble QardioCore or attempt to remove the embedded lithium-ion battery. Attempting to replace the embedded battery may result in damage to QardioCore and will void the warranty. If you are experiencing issues with your QardioCore battery please contact our customer support team who'd be happy to assist with any questions you may have.