# eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh

The eufy Security T85Z0 rechargeable battery is listed for the eufyCam S4 and has a stated 10,000mAh capacity. USB-C charging and a swappable design give S4 owners a way to recharge a spare outside the camera, though the listing does not specify runtime or charging time.

- [Original product page](https://bargainpostbox.co.uk/product/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [View offer](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: eufy Security
- Model: T85Z0
- Category: Electronics > Electronics Accessories > Batteries
- Price: 22.99 GBP
- Previous price: 29.99 GBP
- Discount: 23%
- Price checked: 2026-11-14T09:54:58.772Z
- Rating: 4.8 / 5
- Reviews: 7

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing identifies the battery for the eufyCam S4.
- The stated capacity is 10,000mAh.
- USB-C charging and a removable, swappable design are claimed.

## Pros

- The claimed swappable design lets an S4 owner replace a depleted battery with a charged one without waiting for that battery to recharge.
- USB-C charging offers a stated charging method without requiring the battery to stay in the camera.

## Specifications

### Identity
- Brand: eufy Security
- Model: T85Z0
### Power and battery
- Battery type: Lithium Ion
- Capacity: 10,000mAh
- Weight: 48 Grams
- Rechargeable battery included: 1 Nonstandard Battery batteries required. \(included\)
### Charging
- Charging connection: USB-C

## Before you buy

- The listing does not state battery runtime, charging time, or whether a USB-C cable is included. Confirm compatibility with the exact eufyCam S4 configuration before buying.

## A good fit for

- eufyCam S4 owners seeking a rechargeable replacement or spare battery.
- People who want to swap in a charged battery rather than wait for a recharge.

## Less suited to

- Buyers seeking a battery for a different camera model, as compatibility beyond eufyCam S4 is not stated.

## Customer feedback

The aggregate ratings lean positive, with ratings in the four- and five-star categories, but the sample is small and no written feedback is supplied. Those figures do not explain what customers liked or establish battery runtime, charging performance, or compatibility beyond the listing's eufyCam S4 claim.

## Frequently asked questions

### Which camera is this battery listed for?
The product title identifies it as a battery for the eufyCam S4. The supplied details do not establish compatibility with other models.
### How is it recharged?
The listing says it recharges through USB-C. It does not say whether a cable is included or give a charging time.
### What capacity and battery type are stated?
The listing claims a 10,000mAh capacity and Lithium Ion cells.

## Alternative options

- [REACELL 14.4V 4000mAh Replacement Battery for Eufy RoboVac 11 11S Battery \| Compatible for Eufy RoboVac 11 11S 11C 12 15C MAX 15T 25C G30 G40 30C 35C G20, Ecovacs Deebot N79 N79S DN622 Li-ion Battery](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Mspalocell 4000mAh 14.4V Battery for Venga RVC 3000, Proscenic 850T, Lubluelu SL60D/SL61, Lefant T700/M201, Bagotte BG600 BG700, Tesvor X500/S6/S4/S3, Denkee 600, for Eufy RoboVac 11s/30c/G10 battery](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [REACELL 3.7V 7000mAh Rechargeable Battery for Eufy E340 C31 Video Doorbell \| Backup Battery for Eufy E340 C31, Long-Lasting, Quick-Release, Easy to Instal&Remove, with USB-C Cable \(2026 New Version\)](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Reolink 4K Solar Security Camera Outdoor, 20000mAh Battery Altas PT Ultra \| No Subscription Needed, F1.0 Colour Night Vision, 2.4/5GHz Wi-Fi 6, 355°Pan & 90°Tilt, AI Detection, Local Storage](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Reolink Solar Security Camera Outdoor Wireless, Battery-powered, 5MP Video \| AI Detection, Smart Alert, Local Storage with No Monthly Fee, Two-Way Audio, Argus Solar for Home Security, Yard, Garden](https://bargainpostbox.co.uk/visit/reolink-argus-solar-5mp-wireless-security-camera)
- [LabTEC 14.4V 2600mAh TW4-11 Replacement Battery for Eufy RoboVac 11, 11S, 11S, MAX, 30, 15C, 15T, 12, 35C, Lithium Battery for Ecovacs Deebot N79S, DN622 Cordlss Vacuum Cleaner](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Cameron Sino 10000mAh New Battery for T8161,3C S300 Cam, S300 eufyCam,4G L \| LGM50LT-1S2P T8161,3C S300 Cam, S300 eufyCam,4G LTE Outdoor, Security 4K Solar Security Camera,SoloCam S340, T8170](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Gas and Electric Meter Box Covers - Weather-Resistant Overboxes for DIY Repairs - Protect and Enhance Your Meters - Durable Protection - Black](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Reolink 4K 4G LTE Security Camera Outdoor Wireless Go Ranger PT+Solar Panel \| No WiFi Trail Camera with Night Vision\(No Glow\), App Control, 360° Coverage, Multiple Animal Detection with No Subscription](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [TQTHL 14.4V 3500mAh Replacement Battery Compatible with Ecovacs Deebot N79 N79S DN622, for RoboVac 11 11S 11S MAX 12 15C 15T 30 35C Li-Ion Battery](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [MAMMOTION YUKA 3000 Robot Lawn Mower, Perimeter Wire free,Recommended 3000 m, Max.4000 m,Equipped with Ultrasense Al vision, Handles 45% slopes Cutting Heights 20-90mm, Automatic Mapping](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)
- [Reolink 4K PTZ Security Cameras System, IP PoE Outdoor Cameras, 2X TrackMix PoE with 6X Hybrid Zoom, Auto Tracking, Bundle 8MP/4K 8CH NVR with 2TB HDD for 24-7 Recording](https://bargainpostbox.co.uk/visit/eufy-security-t85z0-rechargeable-battery-eufycam-s4)

## Add-ons

- [eufy Security Camera Outdoor Wireless,eufyCam S4, 4K Solar Security Camera \| Triple-Lens Bullet-PTZ Cam, 360° coverage,Auto Track, 8×Hybrid Zoom,Color Night Vision,No Monthly Fee,Built-in 32GB Storage](https://bargainpostbox.co.uk/visit/eufy-security-eufycam-s4-t8172-4k-solar-security-camera)
- [eufy Security S380 HomeBase \(HomeBase 3\),Smart Hub for eufy Devices \| Up to 16TB Expandable Local Storage,Product Compatibility,BionicMind AI Facial Recognition,Advanced Encryption,No Monthly Fee](https://bargainpostbox.co.uk/visit/eufy-security-s380-homebase-3-smart-hub)

## Images

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 1](https://bargainpostbox.co.uk/i/4FN1AuXTk3E9xg99Ml_xb0xsc59SxqlcLgKaDfx2cfZjoJO5Zaa27z77OQ5HO65T-dzFm6xUcS6ZB0oGnHUcWTvvNomz3q5TDwKmGazKLE3CnD0l7xtu2etx.jpg)

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 2](https://bargainpostbox.co.uk/i/KuH1MC4pUoDwcNMf4jkZNs__FvBnHZGmkMYc-KJJJNF14MCKJnd2EuCzZUHwifXhxGJB8208IkM9C9EOWRIZktotyfn8PZb5r_Y-DQv1Y6Z8P7cUAnf24Iym.jpg)

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 3](https://bargainpostbox.co.uk/i/b9wxcDU2ZIqjmlt31ZSoAX9lnEYFktTWkLBnX3QzTUOck_-MUIM5t_Crr2MPkSg5t0c60ymlGwWPPMHSedIaO2OINWz4jQJ1uZb4xPb8ATgYL6gylgkcMUUf.jpg)

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 4](https://bargainpostbox.co.uk/i/1Rd34XYuvRdTkZwCr3o35jEMKrHnm9-mIoLb4a7Lc1erBVn4tkIROP0UXK2d3e7tZeLgZyssNTG6wQjNmY8luJeUQOvafWpt_TcQUFSBu2Rl_yl5LbMsOC5j.jpg)

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 5](https://bargainpostbox.co.uk/i/qcC8PWpelak4H6P_MJ2sW9keufCHgAr15aOwu8C-ufLZroFhf9Vj7axHIl17LlIpXe6MDEeQwPvVceweHBEM4kMR6S9Ev7x5sMdrlRhdnfSZUfRp0Ao19Rro.jpg)

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 6](https://bargainpostbox.co.uk/i/hvGjmyLEfsDT9Mbvj_W1KME4sckX59sjgOkkfKpDoZ-8UR5oKkI18h1cNlK-7e7OQ1qGjy87rYaMOKP2GcmoZsq3K17Hn_SOjrokOGqWwkrPgmf8BIUwBHuP.jpg)

![eufy Security T85Z0 Rechargeable Battery for eufyCam S4, 10,000mAh — 7](https://bargainpostbox.co.uk/i/GTHmpwPsLzGPfpQaP2FAwqMWRUuNjOhIv7lCm-kpOvT8AG0LX6a6UIMo82HvOR1qQc__sIz4yBBxLPPvIGT1QByl0TudWnSJAFBoPsgP01BQtlnVrZTSICsV.jpg)