Biplob, 25 Sep 20200-100% in 1hr 25 minutes.
Got a Poco M2 Pro in Flipkart's 'Big Diwali Sale', 2020. Never used a Xiaomi product before. Bought M2 Pro due to insane price drop during sale. I believe the phone was launched in India as on 7th Jul, 2020 with the 6/64 GB priced at INR 15K [$200]. Got the same variant on 1st Nov, 2020 for just INR 11.4K [$153] using card offers. The M2 Pro at this price offers insane value at unheard price to performance ratio.
I have been using the phone since then, and very happy with the purchase. It is not my primary device though. However I went bonkers at how fast M2 Pro charges battery at insane speeds. After going through some teardown videos on youtube, I found M2 Pro uses the the same 'BN53' battery of Redmi Note 9 Pro. The battery has a rated capacity of 4902 mAh, while the typical capacity is 5020 mAh. Output voltage is 3.87 Vdc.
The supplied wall charger of M2 Pro is rated at a high 33 watts. Using the Indian 240 volts AC line, below are the output rating of the charger:
5V x 3A = 18 watts
9V x 3A = 27 watts
12V x 2.25A = 16.2 watts
20V X 1.35A = 27 watts
11V X 3A = 33 watts
I have never seen a phone charger capable of outputing 5 different types of power ratings depending on need. This is an advanced, proprietary (Xiaomi) and expensive wall charger. To perform the battery charging speed test I drained the battery to 0% and used the supplied 33 watts charger. Below are the results:
Phone powered off while charging: YES [This yields maximum charging speeds]
Battery (Typical Capacity) -> 5,020 mAh
0 to 25% -> 1255 mAh -> 11 mins
0 to 33% -> 1657 mAh -> 15 mins
0 to 50% -> 2510 mAh -> 23 mins
0 to 62% -> 3112 mAh -> 30 mins
0 to 75% -> 3765 mAh -> 38 mins
0 to 83% -> 4167 mAh -> 45 mins
0 to 90% -> 4518 mAh -> 53 mins
0 to 94% -> 4719 mAh -> 60 mins -> 1 hr
0 to 95% -> 4769 mAh -> 62 mins -> 1 hr 2 mins
0 to 99% -> 4970 mAh -> 70 mins -> 2 hr 10 mins
0 to 100% -> 5020 mAh -> 72 mins -> 1 hrs 12 mins
Even though I was very impressed with the charging speeds, doing some calculations reveled the wall charger is charging the battery at incredibly fast charging rates which in long term will be detrimental to battery health. Heat & high charging rates can destroy any lithium based battery and it will age very fast. Hence packed the supplied 33 watts charger and started using a simple 18 watts wall charger instead. A lithium based battery should never be charged above 1C charging rate, hence doing the maths:
4920 mAh (Rated battery capacity) = 4.92Ah = 4.92A * 3.87V = 19 watts
Hence for 1C charging speeds we need a 19 watts wall charger for M2 Pro. Mine is 18 watts, this way the phone battery will definitely last quite long, phone will not heat up while charging and won't be super slow either. In the end very happy with the purchase of M2 Pro.
Shan, 11 Nov 2020I brought it yesterday from Flipkart. Now it have heating issue while using camera. Heating at... moreCan you got the replacement..
Iam facing the issue
Happy, 04 Nov 2020Automatically disconnect while it charging again and again Just off yoir data and put charge
I have facing one issue apps in poco m2 pro, once app is open, automatically duplicate icons creating, if any solution?.
Battery draining quikly
Shan, 11 Nov 2020I brought it yesterday from Flipkart. Now it have heating issue while using camera. Heating at... moreSo they are not Replacing your phones?
I'm facing super slow charging speed around 6hrs full charge. But in screen window its showing mi turbo charge but it's not working in practical
I am not able to merge calls or do any conference calls on my poco m2 pro
This is just redmi note 9 pro rebranded as pocophone but with only 48 mp camera instead of 64 mp
Anonymous, 11 Nov 2020When I call someone or when I get call from someone the other person on the call can hear my v... moreSame problem I aso iam not able to hear sound in voice calls in poco m2pro
Why it is happening for most of the people
I brought it yesterday from Flipkart. Now it have heating issue while using camera. Heating at back side, exactly on the side of camera bump and the same can feel on the top side. Also I can't even speak because of the heating in earpiece speaker.
Does anyone have this issue?
I brought it on Flipkart offer sale, I think they are selling defective items on offer sales.
I have complaint Flipkart but their technician visit will gonna ruin it. Because they want a temperature of more than 47degree. But I'm getting 40degree.
I have done update, reset etc..
Is there any solution?
When I call someone or when I get call from someone the other person on the call can hear my voice but I cannot hear the voice . But when I connect earphones or Bluetooth I can hear and also on speaker .
But on normal call I can't hear the voice.
Please tell me if there is any solution
Anonymous, 28 Oct 2020Headphone jack not working propertyDid you get any solution to this problem ? Actually I am also facing with your problem
Naga, 01 Nov 2020My ear piece is not working 😭😭My all the earphones are not working in my mobile POCO ME PRO..😭😭😭😭
Rakib ali, 10 Nov 2020My phone call seaker not workingMine also whats the procedure for this
My phone call seaker not working
I also purchased m2 pro but eyerphone is not working idk how it's
earphone jack and earpiece speaker dont work properly after one week
Anonymous, 03 Nov 2020Any solution for this issueEarphone Issue with my POCO M2 PRO
Bd boy, 07 Nov 2020This device has trouble with 'mouth speaker' it can't work without any reason,!... moreMe too
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