Have you ever wondered why the Chinese OEMs are stuffing their smartphone batteries to the proverbial gills while Apple and Samsung appear fairly conservative in bestowing a decent-sized battery to their respective offerings?

Most peg this quirk to cost considerations. But if Chinese OEMs, with their relatively limited financial resources, are able to stuff a 6,500mAh battery in a mid-ranger, clearly something else is afoot. And, that something might have to do with the stringent air safety regulation in the US and EU.

Smartphones above a specific mAh battery capacity trigger stringent scrutiny as "dangerous goods," incentivizing Apple and Samsung to keep a lid on their smartphones' battery juice

vivo X300 Pro battery life

The X300 Pro's battery capacity is a bit of a contentious topic

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