NASTIMA Security Rechargeable Battery Compatible with eufy S330 S230 S220 E330 Video Smart Lock 3-in-1 and Smart Drop, 10500mAh Li-ion Battery Replacement

Excellent replacement for the original battery. With the smart locks on my Disney cabins I need to make sure the batteries are always functional while I’m not there and this really helped. Now my helper just swaps out batteries from fresh charged and they last about 1-2 months between changes.

Easy use, good quality and affordable

this battery works great! too bad eufy won't make a few extra battery covers for holding the battery in. such a great lock, why is the cover so cheap with only two plastic tabs on a door that has to open every other day to charge. Oh, well... This was about the battery, not the @eufy The battery charged right up. Not sure how fast, as I didn't need it right away and let it charge until I did. I charged it sveral times before selling the house and had no issue whatsoever with the battery itself.

Doesn't last as long as the genuine Eufy batteries, but it's nice that it's USB-C instead of micro USB

Arrived as advertised. Work great.

Does not last as long as the Eufy battery

Great product and easy to install! Great value for the money!

Work perfect

This was purchased to keep the door locks working when the OEM battery needed charging. It’s just as good as the OEM, the only difference is the charging indicator. This one uses a single LED that flashes when charging and goes solid “on” when fully charged.

Battery works great and holds a great charge ! Fair price as well for a rechargeable battery.

Great quality battery, works well as a backup to swap with the one that came with the lock.

Excellent produit!

Works perfectly in our Eufy smart lock.