S330 Battery Compatible with eufy S330 3-in-1 Video Smart Lock, Compatible for eufy E330 S230 S231 Smart Lock, Smart Drop, for eufyCam S4

On time and good seller

Well designed

+ USB C charging + Compatible with my door lock - Dies extremely quickly (a few days) with minimal door activity I basically only use this now while the original battery is charging. Pretty disappointing.

Bought this to rotate whenever the original battery needs charging. It lights up red when charging and shows when charging is done. It seems to have good battery life and has no compatibility issues.

I finally installed my Eufy video doorbell (and also smart locks which use the same battery). This battery was easy to charge - it charged faster than the batteries supplied with the original locks. It fits perfectly within the battery space and I'm actually using this right off the bat, while using the original battery as the spare. Seems to be holding up well! I wish there was a way the Eufy app could tell us the battery percentage.