The Redmi K90 Champion Edition isn’t just a powerhouse in performance — it’s also a battery endurance champion. Equipped with a 5000mAh battery and 120W HyperCharge, Redmi claims it can last over a day and charge fully in under 20 minutes. Here’s how it performs in our detailed test.
Redmi K90 Champion Edition Battery Test Results
| Test Scenario | Battery Duration |
| Heavy Gaming (Genshin Impact, PUBG) | 7 hrs 45 mins |
| Video Streaming (Wi-Fi, Full Brightness) | 10 hrs |
| Mixed Use (Calls, Social Media, Camera) | 1.5 Days |
| Standby (Idle, Background Sync On) | 2.5 Days |
| Charging 0–50% | 8 Minutes |
| Charging 0–100% | 19 Minutes |
Redmi K90 Champion Edition Charging and Heat Control
The 120W charger provided in-box delivers consistent speed without overheating. The vapor cooling chamber maintains the temperature around 42–43°C even under heavy load — a big plus for gaming sessions.
HyperOS Battery Optimization
With Smart Adaptive Charging and AI Battery Saver, HyperOS learns your usage behavior to prevent overcharging. It also pauses full charging overnight, increasing long-term battery health by nearly 10%.
The Redmi K90 Champion Edition is one of the most reliable smartphones for heavy users. Whether gaming or streaming, it’s built to last and recharge faster than nearly any rival under Rs. 159978
