Best quality (Same as yours) electric core BN31 3000mAh built-in Battery for Redmi note 5a (only Deliver to some countries)
We can send batteries to most countries in the world, but a few countries can't send batteries.
Please click seller guarantees on the right of the Feedback to see if your country can send battery.
If your country can't send batteries but you still buy them,we will only refund you 85% of the sum.

Battery shipping is only shipping method to send battery.
Each battery consists of three parts——electric core, shell and Circuit protection board.

This item has best electric core.

Compare to copy battery this battery has much more Battery capacity. 

We use professional battery testing equipment(EBC-A10H) to test our battery one by one before shipped out.
The test steps are as follow:
1. Set Mode : D-CC Mode, Test Val : 0.2C, Cutoff Volt : 2.75V to discharge.
2. Set Mode : C-CV Mode, Test Val : 0.5C, Voltage : 4.4V, Cutoff Curr : 0.05 to charge, it normally takes about 2 hours to get charge capacity.
3. Set Mode : D-CC Mode, Test Val : 0.2C, Cutoff Volt : 2.75V to discharge, it normally takes about 5 hours to get discharge capacity.
Finally, we can judge whether the battery is normal and whether the capacity is sufficient by test duration, curve and test results.
Compatible with:
Redmi note 5a

Redmi note 5a prime

Xiaomi A1

Battery Model: BN31 
Product attributes:
Battery Type: Li-ion,Li-polymer
Rated capacity: 3200mAh (Tested capacity more than 2880mAh)
Voltage limit: 4.4V
Quality Grade: best electric core + good quality Circuit protection board

Battery Country of Origin: ShenZhen,China