eufy Battery Doorbell Guide: Which Model and Add-Ons Do You Need?

High score Our score: 9.8/10

eufy Security

eufy Security Video Doorbell Add-on Chime, Requires 2K (Battery Powered) or Video Doorbell Dual, Simultaneous Ringtone, Volume Control, Works with HomeBase 2/HomeBase 3

9.8/10Our score, based on listed specifications and buyer feedback

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Price and specifications are read from the Amazon product page and can change.

eufy Security Video Doorbell Add-on Chime

Best for: Hearing the doorbell in other rooms

Pros

• 8 ringtones
• 3 volume levels
• Rings in several rooms at once

Cons

• E340 and C31 need a HomeBase
• Listing specs conflict

Best for: Homeowners with existing doorbell wiring

Pros

• Battery or hardwired power
• 24/7 recording when wired
• 2K video with 4:3 view
• Quick replies and voice messages

Cons

• MicroSD card not included
• Wiring means bypassing old chime

Best for: Renters wanting package views without wiring

Pros

• Dual cameras for faces and packages
• Spare 6,500mAh battery included
• 8GB built-in storage
• Color night vision

Cons

• Chime pairing needs extra hardware

The eufy Security Video Doorbell E340 Kit is the most complete package in this group. The kit includes the E340 doorbell and an extra quick-release rechargeable battery pack rated at 6,500mAh, so you can charge one indoors while the other keeps the doorbell running. The E340’s standout feature is its two cameras: one faces forward to capture the person at your door, and a second points down at the ground, which is exactly where delivery drivers leave parcels.

Video is listed as 2K, a sharper picture than standard HD that makes faces easier to recognize. For nighttime, eufy describes a dual-light color night vision system with a clear viewing distance of up to 16 feet (5 meters). Clips are saved to 8GB of built-in eMMC storage, which is a type of memory chip soldered inside the doorbell, so the listing states no subscription is needed. For a wider look at how the brand’s cameras cover an entrance, our front door camera guide goes into more detail.

On chimes, the listing says the E340 can connect to an existing mechanical chime, or pair with eufy HomeBase 2 (S280), HomeBase 3 (S380), the eufy Minibase Chime (T8023/T8024), and Alexa or Google Assistant devices. The specifications list “Wired or Battery Power”, but the listing does not explain the wiring steps, so check the manual if you plan to hardwire. This kit suits renters and anyone who receives lots of packages. If you already have doorbell wiring and want continuous recording, the C31 below is the stronger fit.

The eufy Security Video Doorbell C31 is a single-camera doorbell that gives you a choice of power. Out of the box it runs on a quick-release 6,500mAh rechargeable battery. Hook it up to your existing doorbell wiring and, according to the listing, it can record 24/7 with a 5-second pre-roll, meaning motion clips include the few seconds before the motion was detected. The listing notes that the battery must stay inserted even when wired, that the power should be switched off at the breaker before swapping the battery or adding a card, and that your existing chime must be bypassed when hardwiring.

Video is 2K with a 4:3 aspect ratio, a taller frame than widescreen, which eufy pairs with a “head-to-toe” description. When someone presses the button, a video call pops up on your phone; if you are out, you can set quick replies and let visitors leave voice messages. For storage, the listing mentions an SD card that is not included, so budget for a card. It pairs with eufy HomeBase S380 or the MiniBase Chime, both sold separately, and works with Alexa and Google Assistant devices.

The C31 suits homeowners who have doorbell wiring and want uninterrupted recording. It gives way to the E340 if you care most about seeing parcels on the doormat, since the C31’s listing does not mention a second camera.

Lesaps

Lesaps 1-Pack Replacement Battery for eufy Video Doorbell E340

8.8/10Our score, based on listed specifications and buyer feedback

See it on Amazon

Price and specifications are read from the Amazon product page and can change.

Lesaps 1-Pack Replacement Battery for eufy

Best for: E340 owners wanting a spare battery

Pros

• 7000mAh listed capacity
• USB-C charging with LED
• Removal pin included

Cons

• Third-party Lesaps product, not eufy
• Fits E340 only

Be clear about what this one is: the Lesaps 1-Pack Replacement Battery for eufy is made by Lesaps, a third-party brand, not by eufy. The listing names the manufacturer as Dongguan Hongbo New Energy Technology Co. Ltd. and the model as HB-E340. It is designed to fit the eufy Video Doorbell E340 only, so it is not the right battery for the C31.

Lesaps lists a 7000mAh lithium-ion cell, a little more than the 6,500mAh eufy pack, along with USB Type-C charging from a 5V source and an LED that shows red while charging and green when full. The box includes the battery, a USB-C cable, a removal pin for opening the housing and a user manual, and Lesaps offers a one-year limited warranty plus 30-day returns. The listing also mentions overcharge and overheating protection. Keep in mind that the E340 kit above already ships with a spare eufy battery, so this is mainly for owners who bought the doorbell alone or want a third battery in rotation.

It suits E340 owners who hate waiting for a recharge. If you prefer to stay entirely with the original brand’s parts, the E340 kit’s included spare covers the same need.

A battery doorbell sends alerts to your phone, but many people also want a traditional ding-dong inside the house. The eufy Security Video Doorbell Add-on Chime plays a ringtone when someone presses the doorbell, and you can use several to ring in multiple rooms at once. It offers 8 ringtones and 3 volume levels.

Compatibility is the key detail. The listing says it works directly with a list of older eufy models, but to use it with the E340 (T8214) or the C31 (T8223), it must be paired with a eufy HomeBase 2 or HomeBase 3. Another line in the same listing says it only works with HomeBase 2, so the listing contradicts itself on HomeBase 3 support; confirm before buying. Some specifications also seem mismatched for an indoor chime, including an outdoor usage tag, an IP65 rating, two-way audio and battery power, so treat those as unverified. Our doorbell chime explainer walks through the pairing options in more depth.

Buy it if you already own, or plan to buy, a compatible HomeBase. If you do not, the E340’s support for an existing mechanical chime or smart speakers may be the simpler route.