u/myearsbled

I recently got a charger for my gameboy advanced sp that I’d bought a few years back. After about two or three months of using it regularly it stopped charging I noticed the charging light wouldn’t turn on when I plugged it in. Because it was so old It was already having battery issues where charges would only last around 40 min. But I don’t know if it would be the battery since it still turns on and plays just fine. the low battery light turns on while it’s plugged in which makes me think it’s either the cable or the charging port. Is this a common issue? Any help would be greatly appreciated 🙏.