For 18650 lithium batteries with a capacity of 2900 mAh or more, the charging cut-off voltage is 4.35 V. For 18650 batteries with a capacity of less than 2900 mAh, the cut-off voltage is 4.35 V. charging is 4.2 V. V charger to charge a battery above 2900 mAh, it certainly won't be able to release that much.
For 18650 lithium batteries with a capacity of 2900 mAh or more, the charging cut-off voltage is 4.35V. For 18650 batteries with a capacity less than 2900 mAh, the charging cut-off voltage is 4.35V. Charging cut-off voltage is 4.2 V. You use a 4.2 V charger for batteries above 2900 mAh. The battery certainly won't be able to release as much when charged.
3.8V is correct. The Samsung Galaxy S3 series uses high-voltage lithium batteries (new technology batteries). The average discharge voltage is 3.8V and the charging cutoff voltage is 4.35V. of ordinary lithium batteriesis voltage is 3.6V/3.7V and charging cutoff voltage is 4.2V. The two batteries are not compatible.
LZ can take a look at your original battery. The original battery is manufactured by Samsung SDI for Samsung Electronics. It has a built-in NFC antenna and the type column is marked. Lithium-ion 3.8 V.
Due to backward technology, older batteries used to have to cut out at around 3 V. When fully charged, 4.2 V and 3.0 V should be cut, otherwise the service life will be damaged. The battery discharges between 4.2V and 3V and the average discharge voltage is 3V+(1.2V÷2)=3.6V
Later, with technological advancement, the Charging cut-off voltage remained unchanged and the discharge cut-off voltage dropped by 2.75 V, so the average discharge voltage becomes 3.7 V.
Considering that today's smartphones today are more and more energy consumers and thatlithium battery technology failed to overcome the bottleneck, Samsung developed high-voltage lithium batteries with higher charge cut-off voltage and wider discharge voltage difference. The energy stored in the battery is also higher.
At present, this type of battery is not yet popular. Many people don't know the existence of this type of battery, and it is natural that LZ doesn't know it.
Although Scud is gradually declining, there is no mistake in such important details, LZ can rest assured.