7000mAh (typ) Xiaomi Surge Battery
Powered by advanced silicon-carbon anode technology, Redmi 15 delivers an ultra-long battery life experience like never before.

1% power endurance
When the battery level drops to just 1%, it stays in standby mode, ensuring you can still make and receive calls.

Reliable power at -20℃7
Enhanced by a BatteryExtender Chip and innovative cell material systems, the battery supports 3.0V low-voltage shutdown, significantly improving available capacity in low-temperature environments.

1600 charge cycles, capacity still ≥80%8
Even after completing 1,600 full charging cycles, the battery still maintains 80% or more of its original capacity.