IT Home February 21st news Xiaomi released the Xiaomi 10 series flagship mobile phone last week. Among them, Xiaomi 10 Pro has built-in 4500mAh large battery , which supports "triple fast charging" such as 50W wired charging , 30W wireless charging and
This afternoon, Xiaomi officially reviewed the charging development history from "Mi1" to "Mi10". Let's take a look.
Xiaomi 1, 5W charging, 2011
first generation Xiaomi mobile phone , battery capacity 1930mAh, standard 5W (5V1A) charging.
Xiaomi 2, 5W charging, 2012
Xiaomi mobile phone 2 is still a removable battery design, 2000mAh. A large-capacity battery of 3000mAh can be optionally equipped with an increase in thickness. The charging specifications are still 5W (5V1A). Everyone has not paid much attention to charging. After all, in that era when batteries could be replaced, there was no problem that could not be solved by bringing a spare battery. If so? Then bring two pieces.
Xiaomi 3, 10W charging, 2013
IT Home discovered that Xiaomi 3 adopted an integrated design of non-removable batteries for the first time, with a large capacity of 3050mAh. Xiaomi pointed out that considering that the inability to replace the battery may have an impact on users' battery life and usage habits, Xiaomi has officially "layouted fast charging" since Xiaomi 3.
Xiaomi 3 supports Quick Charge technology QC 2.0, supports 2A high-current charging, and an optional fast charging head can achieve 10W (5V2A) fast charging.
Xiaomi 4, 12W charging, 2014
Xiaomi 4 is close to Xiaomi 3 in terms of battery capacity, 3080mAh design, and for the first time, a fast charging adapter is equipped in the packaging standard, supporting 12W (5V2A, 9V1.2A, 12V1A) charging.
Xiaomi 5, 18W charging, 2015
Xiaomi 5 battery capacity is 3000mAh, in terms of charging technology, Qualcomm's latest QC 3.0 was adopted at that time, and the charging rate was increased by 20%, and the power was once again increased, up to 18W charging. It is worth noting that after Xiaomi 4s and 4c, Xiaomi 5 is also equipped with USB Type-Ch interface, taking the first step in the transition from Micro USB to Type-C in the Xiaomi digital series of mobile phones.
Xiaomi 6, 18W charging, 2017
Xiaomi 6, 3350mAh battery, Type-C interface, QC 3.0 fast charging, 18W fast charging, supports PD fast charging protocol for the first time.
Xiaomi 8, 18W charging, 2018
Xiaomi 8, 3400mAh, Type-C interface, fast charging protocol upgraded to QC 4+, 18W fast charging.
Xiaomi 9, 27W charging, 20W wireless charging, 2019
Xiaomi 9 uses a 3300mAh battery, wired charging is upgraded to 27W fast charging, and is equipped with 27W power adapter , which supports QC 4+ fast charging protocol. For the first time, the charge pump charging technology with half-voltage direct charging is adopted.
Xiaomi 9 also released Xiaomi’s fastest 20W wireless charging at that time, and passed the Qi EPP certification of the WPC Wireless Charging Alliance.
Xiaomi 9 Pro, 40W charging, 30W wireless charging, 10W wireless anti-charging
IT Home learned that as an upgraded version of Xiaomi 9, the Xiaomi 9 Pro released in the same year has a battery capacity of 4000mAh. In terms of charging technology, 40W wired + 30W wireless + 10W wireless reverse charging constitutes the triple fast charging in the 5G era, and is also the first mobile phone to pass the German TÜV secure fast charging 3.0 certification.
Xiaomi 9 Pro also supports dual-band transmission technology and Mi-FC fast charging technology, and is equipped with a 45W power adapter standard, which can be filled in 48 minutes. In addition, the power adapter is compatible with the PD protocol, making it convenient to charge laptops and other devices that support PD protocol.
Xiaomi 10 Pro, 50W charging 30W wireless, 10W wireless reverse charging
Xiaomi 10 Pro has a built-in 4500mAh large battery, supports 50W wired charging + 30W wireless charging + 10W wireless reverse charging, and has passed the German Rhine TÜV safe fast charging 3.0 certification.
Compared with previous generations, Xiaomi 10 Pro adopts a balanced solution of fast charging and battery capacity. When the battery volume remains unchanged, the larger the charging power, the smaller the battery capacity. From 18W to 30W to 50W, the greater the loss of battery capacity. As for 65W and 100W, a dual-cell solution is required, and the loss of battery capacity is even greater.
Xiaomi 10 Pro has upgraded its charging architecture design, battery structure design, heat dissipation design, etc.The double charge pump is used to parallel design to further reduce the loss during energy conversion.
Inside the battery, Xiaomi 10 Pro has customized a fast charging battery. The customized "high-ear middle" bar battery and dual-battery connector design reduces heat generation during charging and extends the charging time of high current. At the same time, Battery Sense battery cell detection is added inside the battery, which can detect the battery voltage and avoid sampling errors caused by the battery protection circuit.
In addition, Xiaomi 10 Pro uses the new Mi-FC fast charging technology, combined with battery cell detection technology, dynamically fine-tune the charging power of each node during the charging process, maximizing the performance of 50W fast charging. In terms of wireless charging, Xiaomi 10 Pro can charge 4500mAh large battery to 100% in 65 minutes. Two-stage charge pumps are used to reduce the voltage at the wireless coil, which converts the high voltage received by the wireless coil into a low voltage that can be directly input to charge the mobile phone battery.