Xiaomi Redmi 9 Prime

Xiaomi Redmi 9 Prime was released in 2020 and is powered by the Mediatek Helio G80 chipset manufactured on a 12 nm process technology. It comes with 4GB of RAM and 64GB to 128GB of storage. The battery capacity is 5020 mAh and the phone is 9.1 mm thick.
Xiaomi Redmi 9 Prime Battery life
Xiaomi Redmi 9 Prime battery life can vary significantly, ranging from 10 hours and 43 minutes to 106 hours, depending on how the phone is used.The following usage profiles are relevant:
1. Active Standby: ~106 hours
4 days and 10 hours? Really? This profile prioritizes a phone that's always reliable, perfect for emergencies or extended trips. Keep in mind, standby time will take a significant hit when you actually use the phone.
2. Light Usage Profile: ~48 hours
If you primarily use your phone for communication but have all the apps you need and use them whenever you need them, you can expect the Xiaomi Redmi 9 Prime to last for approximately 48 hours. That means 2 days.
3. Moderate Usage Profile: ~38 hours
If you're a fan of YouTube and social media but don't have all day for it, this profile is for you. In this scenario, you can expect the phone to last for approximately 38 hours. That means 1 day and 14 hours.
4. Heavy Usage Profile: ~24 hours
If you have high communication needs and staying informed is crucial for you, you will likely use your phone heavily. In this scenario, you can expect a battery life of approximately 24 hours.
Within this category, there are three extreme subprofiles:
- Continuous voice calls: ~23 hours.
- Continuous video playback: ~14 hours and 37 minutes.
- Continuous intense web activity: ~10 hours and 43 minutes.
It is important to note that these are just estimates, and actual battery life may vary depending on individual usage patterns and specific conditions.
Factors such as battery ages, screen brightness, network signal strength, and background app activity can also impact battery life of Xiaomi Redmi 9 Prime phone.
Basic specifications
| General specifications | |
|---|---|
| Release year | 2020 |
| Networks technology | GSM / HSPA / LTE (2G+3G+4G) |
| Size (mm) | 163.3 x 77 x 9.1 mm |
| Size (in) | 6.43 x 3.03 x 0.36 in |
| Weight | 198 g |
| Software | Android 10, MIUI 11 |
| Screen | |
|---|---|
| Screen size | 6.53 inches |
| Screen resolution | 1080 x 2340 pixels (19.5:9 ratio) |
| Screen Type | IPS LCD |
| Performance | |
|---|---|
| Chipset | Mediatek Helio G80 |
| Architecture | Octa-core (2×2.0 GHz Cortex-A75 + 6×1.8 GHz Cortex-A55) |
| GPU | Mali-G52 MC2 |
| Technology | 12 nm process |
| Memory | |
|---|---|
| Storage | 64GB to 128GB |
| RAM | 4GB |
| Memory versions |
|
| Card | microSDXC – Dedicated slot |
| Multimedia & Connectivity | |
|---|---|
| Main Camera | Quad (13MP+8MP+5MP+2MP) |
| Front Camera | Single (8 MP) |
| Radio | Wireless FM radio (version dependent) |
| NFC | No |
| Positioning | GPS, GLONASS, BDS |
| USB | USB Type-C 2.0, OTG |
| Jack 3.5mm | Yes |
| Battery | |
|---|---|
| Battery Type | Non-removable Li-Po |
| Battery Capacity | 5020 mAh |
| Battery Energy | 18.57 Wh |
| Phone Power density | 25.35 mAh/g (by weight) 551.65 mAh/mm (by thickness) |
| Charging | 18W wired |
| Battery Life | Stand-by time: ~106 h |
Your feedback matters
Hey there, Xiaomi Redmi 9 Prime users!
We're looking for your feedback to improve our estimates. How accurate do you think our estimate for the phone's battery life is?


