There is a good reason why Apple and Google should not use silicon-Carbon batteries in Western markets, according to YouTuber Marques Brownlee. Silicon-carbon batteries, which can power a flagship phone for up to three days but are also easy to kill if they're used heavily. Despite this, major smartphone manufacturers like Apple and Samsung have been reluctant to adopt silicon-carbon technology. Brownlee's findings suggest that major brands may be wary of adopting unproven battery technology due to their reputations and potential for public crises like the recent Galaxy Note 7. However, he also noted that silicon-car batteries expand more than lithium-ion batteries due to the stress caused by a power cycle. Despite these concerns, some argue that companies are afraid to use the tech.