Customer Ratings & Reviews

I bought this as a back-up battery for the E340 Video Doorbell so I could keep using the doorbell while one battery is charging. I found that if you use the motion detection settings on high along with the other settings maxed out the batteries only last a week or so. I ended up hardwiring my doorbell because I wanted the highest video resolution and motion detection possible without having to change a battery every week. If you have the doorbell settings set to minimum and don't have a lot of traffic in front of your door, using only battery power would probably work great. But because of how I wanted the doorbell settings, it drained too fast. The battery itself is a nice lithium-ion batttery that I never had an issue with. I still kept it because the doorbell doesn't work without a battery installed and I like having a backup just in case.

Item arrived a day early, charged battery, installed lasted 34 days on one charge, worked perfectly for less money then what efuy was charging through their website, would purchase again.

Good budget friendly camera. Especially when you dont want a subscription fee.

Great backup battery to have when the battery in the camera is dead. Charge it once you get a low battery notification and you’ll be set for another 40 days or so. Swapping the battery is really easy and takes a couple of minutes. Very happy with it and would recommend for your eufy camera.

This battery holds a very long charge as advertised! Much better than the one that originally came with the lock!

Security 6,500 mAh Battery Pack For eufy Video Doorbell E340 the battery is supposed to ;ast 6 months that's a great thing

Would recommend to have one spare for convenient battery changes.

Excited to find this item was available. I wanted it as a spare so that I could change the battery as soon as the one in the eufy door bell gets low.

Rec'd battery replacemnt and it charged up quickly, have not had any issues yet

The extra battery helps and makes it easier to charge the other battery.

Bought this so I can change battery without waiting for doorbell to recharge

Works well sometimes it doesnt catch the people but

Well worth the money so you are never without a video doorbell.

Loving the extra battery so im always connected to the camera

I bought the doorbell to locate it where running a wire was difficult. The hope was that the battery would last 3-6 mths (as advertised). Don't even get those many weeks --- with an average of less than one event recorded per week!

Good product but does not last long in eufy 340 video doorbell

Ordered two and they did not hold charge. Lasted a week.