Pixel 9a Battery Health Assistance: Difference between revisions

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===Battery Performance issues===

Charging the battery at a lower voltage will not fully charge it. A partly charged battery exhibit shorter runtime. Lowering the charging voltage by 0.1V lowers the capacity by about 10%<ref name=":3">{{Cite web |date=25 Oct 2021 |title=BU-409: Charging Lithium-ion |url=https://batteryuniversity.com/article/bu-409-charging-lithium-ion |url-status=live |access-date=4 Apr 2025 |website=Battery University}}</ref>.

Charging the battery at a lower voltage will not fully charge it. A partly charged battery exhibit shorter runtime. Lowering the charging voltage by 0.1V lowers the capacity by about 10%<ref name=":3">{{Cite web |date=25 Oct 2021 |title=BU-409: Charging Lithium-ion |url=https://batteryuniversity.com/article/bu-409-charging-lithium-ion |url-status=live |access-date=4 Apr 2025 |website=Battery University}}</ref>. Charging the battery at a lower current will increase the charging time.

~~Charging~~ the battery at a ~~lower current will increase~~ the ~~charging time~~.

Google claimed that on Pixel 8a and later, the battery "should retain up to 80% capacity for about 1000 charge cycles"<ref name=":1" />. However, Google also said that "your battery’s actual lifespan depends on usage patterns and other factors"<ref name=":1" />. Since the "Battery Health Assistance" being a "factor", the actual lifespan could be much worse than the capacity retained of the battery after 1000 charge cycles.

====Analysis====

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 ===Battery Performance issues===
-Charging the battery at a lower voltage will not fully charge it. A partly charged battery exhibit shorter runtime. Lowering the charging voltage by 0.1V lowers the capacity by about 10%<ref name=":3">{{Cite web |date=25 Oct 2021 |title=BU-409: Charging Lithium-ion |url=https://batteryuniversity.com/article/bu-409-charging-lithium-ion |url-status=live |access-date=4 Apr 2025 |website=Battery University}}</ref>.
+Charging the battery at a lower voltage will not fully charge it. A partly charged battery exhibit shorter runtime. Lowering the charging voltage by 0.1V lowers the capacity by about 10%<ref name=":3">{{Cite web |date=25 Oct 2021 |title=BU-409: Charging Lithium-ion |url=https://batteryuniversity.com/article/bu-409-charging-lithium-ion |url-status=live |access-date=4 Apr 2025 |website=Battery University}}</ref>. Charging the battery at a lower current will increase the charging time.
-Charging the battery at a lower current will increase the charging time.
+Google claimed that on Pixel 8a and later, the battery "should retain up to 80% capacity for about 1000 charge cycles"<ref name=":1" />. However, Google also said that "your battery’s actual lifespan depends on usage patterns and other factors"<ref name=":1" />. Since the "Battery Health Assistance" being a "factor", the actual lifespan could be much worse than the capacity retained of the battery after 1000 charge cycles.
 ====Analysis====