作者: John S. Smith
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摘要: A portable power supply device can include: a housing; controller; at least one battery in the housing and operably connected to electrical port battery, being configured for providing from an external electrically-powered under control of extendable tray, which be extended position tray protrudes outwardly housing, retracted is concealed within housing. kit include defibrillator. method charging electronic performed by plugging ports. performing medical procedure with aid device.