3.8V 1700mAh Li-Polymer
B45, BT-1500-252
For: Aquaris 4

3.7V 3400mAh Li-Polymer
B21, BT-4000-259
For: Aquaris 5.7

3.8V 1700mAh Li-Polymer
B46
For: 1700, Aquaris E4

3.85V 2800mAh Li-Polymer
2900
For: Aquaris X5, Aquaris X5 Cyanogen Edition