
When you buy a new phone, the staff advises on proper charging techniques to protect the battery, prolong its lifespan, and ensure optimal device performance. Do you know the correct way to charge the battery when you bring home a new phone?
1. Optimal Charging Method for a Newly Purchased Phone to Extend Battery Lifespan
When you buy a new phone, the staff guides you on how to charge the battery correctly to protect it, extend its lifespan, and ensure optimal device performance. Do you already know how to charge the battery correctly when you bring home a new phone?

No Need to Charge the Battery 3 Times for 8 Hours as Before
Previously, when purchasing a phone, the staff always recommended charging the phone for 8 hours in the first three times to help the phone battery condition. Since 2016, with Li-Ion batteries, the emphasis on 8-hour charging has diminished, making waiting for the phone to fully charge inconvenient.
Since 2016, smartphones on the market using Li-Ion batteries no longer emphasize the 8-hour charging issue. Waiting for this phone to charge fully can be quite cumbersome.

Charging a newly purchased phone correctly will determine the lifespan and performance of the battery.
Suggestions for suitable charging methods (for Li-Ion batteries):
- You should only use the original charging accessories that come with the phone when you first buy it.
- When you get a new phone, it's advisable to use up the remaining battery on the device. When the battery is low, connect it to the charger. Avoid letting the phone run out of power on the first charge.
- Avoid leaving the phone charging overnight. Depending on the actual battery capacity of each phone, plan to charge it fully and then disconnect the charger.
- After the phone is fully charged, keep it plugged in for 5 - 10 minutes and then disconnect the charger.
For Li-Po batteries, there's no need to charge them for 3 times at 8 hours each as it's not really necessary and has no effect at all - 'Advice from Sony manufacturer'.
When you bring home a new phone, it's recommended to charge it 5 times initially when the phone indicates a low battery and charge it until it reaches 100%.
Note: In the first 5 charging cycles, it's crucial 'NOT' to let the phone completely run out of battery and power off. However, in subsequent cycles, it's fine if the phone powers off. You can also turn off the phone to speed up the charging process.
Tips for efficient battery usage and prolonging battery life

Limit using the phone while charging (playing games, browsing, listening to music) as it causes the phone to heat up. Prolonged usage may lead to the phone exploding due to excessive heat.
It's advisable to charge immediately after the phone signals low battery. Avoid keeping the battery at a critically low level or letting it power off as it makes it difficult for the battery to receive energy, resulting in longer charging times.
Avoid leaving the battery fully depleted for an extended period. Prolonged depletion will lead to the battery being unable to charge anymore.
Charge the battery to full and remove it from the phone 1-2 weeks before deciding to let the phone rest.

You can charge your phone anytime, but make sure to charge when the battery is low and unplug it around 75% battery level.
Check the manufacturing year of the battery: Even a little-used or unused battery's performance degrades over time. Therefore, choose batteries with the latest manufacturing year for better performance.
Examine if your battery has been in use for an extended period. If it's been a while (over 2 years), consider replacing it with a new one.
Use only the default charger provided by the manufacturer. If, over time, the original charger is damaged or lost, opt for replacement accessories that are identical or closely resemble the ones used with your previous device.
