SAPBJ 2 Pack Battery Replacement for eufy Security Video Doorbell E340 Rechargeable Lithium-ion Backup Battery with Type-C Charge Cable Upgraded 7000mAh Capacity

7000mAh Large capacity ensures long running time continuous operation
Fully compatible with eufy Video Doorbell E340/C31 only
Extra battery backup, no need to wait for charging when the security video smart lock is low on power, providing uninterrupted protection for your home security
Integrated intelligent control chip, built-in overcharge, overdischarge, overvoltage, overcurrent and overheat protection. Multi-circuit protection to ensure safe and stable use
We provide 12 months technical support, if you have any questions about this battery, pls contact us at any time you need, we will be happy to serve you