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October 18th, 2024 00:18
Battery full charge capacity
I purchased a pre-owned Dell XPS 13 9300 (FHD) and It has full charge battery capacity was 35,000 while purchasing. After using for 2 days, full charge battery capacity is downgrade to 33500?
Is it normal? What will happen if full charge capacity becomes 0? How can I stop this downgrade?
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ejn63
10 Elder
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28.7K Posts
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October 18th, 2024 01:05
You really can't, and this battery is about four years old. It has a design capacity of 52000 mWh, so you've got about 65% of the original runtime left. That's not bad for a battery this age.
You'll likely need a new battery within a year or so -- once the downward slide starts, it continues and once you see less than 50% of the design capacity, it's time for a new battery. 2-3 years is about where most batteries start to approach their replacement cycle.
Unless you were promised a new battery with the used system, there's nothing you can do but budget for a new battery.
niko_ke
2 Intern
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754 Posts
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October 18th, 2024 01:05
Under normal circumstances, the capacity of the battery will decay over time. This is a normal phenomenon, unless the decay rate is abnormal. When it decays to one-third, the battery actually needs to be replaced.