4100mAh BL255 for Lenovo ZUK Z1 Li-Polymer Battery

1. Battery capacity: 4100mAh 2. Can replace the original battery, with comparable standby and talk time 3. Lithium polymer battery provides excellent continuous power for your device 4. If the battery will not be used for a long time, please put it in a dry and cool place and fully charge it every three months 5. Good quality and long service life