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Beic hydrogen (Beiciau Cell Tanwydd)
mae beiciau celloedd tanwydd yn cynnig manteision sylweddol dros feiciau batri trydan o ran amrediad ac ail-lenwi â thanwydd. Tra bo batris fel arfer yn cymryd sawl awr i'w hailwefru, gellir ail-lenwi silindrau hydrogen mewn llai na 2 funud.
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