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Before you give up, just check if there's an app running in the background draining your battery 🔋 sometimes it's just something that launches on startup and sits there consuming power like crazy. If it's really been like that from the start, then yeah it might be a hardware defect and you can call support or check your warranty, but it's worth poking around a bit before you throw the device out.
Not necessarily, it really depends on the model and how old it is. If it's relatively new, the battery might have a manufacturing defect or some weird software that's draining power - you can try a reset or check your background apps. If it's old, yeah, that's usually when the battery starts to wear out and you need to replace it, but sometimes it's not that much of a hassle.
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