---
product_id: 29799682
title: "AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original"
brand: "efortek"
price: "725 som"
currency: KGS
in_stock: false
reviews_count: 8
url: https://www.desertcart.kg/products/29799682-az16-1-efortek-replacement-battery-2-packs-and-dual-usb
store_origin: KG
region: Kyrgyzstan
---

# AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original

**Brand:** efortek
**Price:** 725 som
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original by efortek
- **How much does it cost?** 725 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/29799682-az16-1-efortek-replacement-battery-2-packs-and-dual-usb)

## Best For

- efortek enthusiasts

## Why This Product

- Trusted efortek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

The EfoTek AZ16-1 Battery and Dual USB Charger Kit including:◆2 High Capacity 1400mAh YI 4K/4K+ Battery◆1 Dual USB Charger and 1 USB codeEach battery features 1400mAh to give you extended power and the included Dual USB charger allows you to charge 2 of your AZ16-1 battery at the same time. All items are fully compatible with original camera and power accessories and come with a 2-year manufacturer warranty.Compatible with following YI Models:Xiaomi YI New 4K Action Camera Xiaomi YI 4K+Xiaomi YI LiteXiaomi YI YI 360 VR

Review: Yi 4k compatible! - This charger and 2 batteries work great for my Yi 4k camera. Finally happy. I originally bought a different advertised charger on desertcart that could charge 3 batteries at once and came with 2 batteries but none of it was compatible with the Yi 4k though it said it was.
Review: Good battery, dual charger is a plus - Batteries work well in my YI 4K+ Acton Camera. The dual battery charger is really nice as the camera does not come with a stand alone charger. Only reason I'm not giving 5 starts is because they do not last as long as the factory battery. These appear to be giving about 20 min less run time. I am getting about 2 hours of continuous recording at 4K-30FPS per battery. Update on these batteries.... they are still working fine but they do not seem to hold a charge as long as when new. Currently I get about 1:15 - 1:30 per battery while shooting at 2.7k @ 60fps. I've also notices that this charges seems to stop charging at about 85% capacity. To fully charge the batter I must charge via the camera. Only this way can I get the batteries to 100% each. Also, if the battery sits for a few days unused the charge will drain. 3 - 4 days of none use will result in the battery going from 100% to about 60%. They are still very useful and I'm glad I have them, just not as functional as I had hoped. Dropping my rating to 3 stars.

## Features

- Two Batteries for Long Video Time：Carry a fully charged AZ16-1/AZ16-2 battery wherever you go so you're never miss the moment ; only 2.5 hours to simultaneously recharge both batteries from the Micro-USB 5V / 2.1A input
- More Power for More Video: Each 1400mAh battery offers you long action video
- Save your charging time: Charges 2 AZ16-1 camera batteries at the same time,Smart LED light indicated RED when charging and GREEN when complete
- 3 Ways to Charge: Unlike standard chargers with only one way to recharge batteries, Efortek features wall, car, and power bank charging for added convenience.
- 100% Safety Guarantee: Features four layers of protection (over-charging, short-circuit, high-temperature, and surge protection) with a high-quality, fire-resistant construction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01FQZWPAQ |
| Brand | EforTek |
| Customer Reviews | 4.0 4.0 out of 5 stars (26) |
| Input Voltage | 5 Volts |
| Manufacturer | EforTek |
| Mfr Part Number | AZ16-1 |
| Model Number | AZ16-1 |
| Number of Ports | 2 |
| Specification Met | CE, FCC |
| UPC | 701327998611 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** EforTek
- **Compatible Devices:** Camera
- **Input Voltage:** 5 Volts
- **Specification Met:** CE, FCC
- **UPC:** 701327998611

## Images

![AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original - Image 1](https://m.media-amazon.com/images/I/61NSS16X-vL.jpg)
![AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original - Image 2](https://m.media-amazon.com/images/I/61Avk++qqyL.jpg)
![AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original - Image 3](https://m.media-amazon.com/images/I/61LdmOD3EaL.jpg)
![AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original - Image 4](https://m.media-amazon.com/images/I/61USHb7l-9L.jpg)
![AZ16-1 EforTek Replacement Battery(2 Packs) and Dual USB Charger for Xiaomi YI 4K,Yi 4K+,Yi Lite,YI 360 VR Action Camera，100% Compatible with Original - Image 5](https://m.media-amazon.com/images/I/61ATqL4jTUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Yi 4k compatible!
*by S***D on January 10, 2017*

This charger and 2 batteries work great for my Yi 4k camera. Finally happy. I originally bought a different advertised charger on amazon that could charge 3 batteries at once and came with 2 batteries but none of it was compatible with the Yi 4k though it said it was.

### ⭐⭐⭐ Good battery, dual charger is a plus
*by P***I on February 9, 2018*

Batteries work well in my YI 4K+ Acton Camera. The dual battery charger is really nice as the camera does not come with a stand alone charger. Only reason I'm not giving 5 starts is because they do not last as long as the factory battery. These appear to be giving about 20 min less run time. I am getting about 2 hours of continuous recording at 4K-30FPS per battery. Update on these batteries.... they are still working fine but they do not seem to hold a charge as long as when new. Currently I get about 1:15 - 1:30 per battery while shooting at 2.7k @ 60fps. I've also notices that this charges seems to stop charging at about 85% capacity. To fully charge the batter I must charge via the camera. Only this way can I get the batteries to 100% each. Also, if the battery sits for a few days unused the charge will drain. 3 - 4 days of none use will result in the battery going from 100% to about 60%. They are still very useful and I'm glad I have them, just not as functional as I had hoped. Dropping my rating to 3 stars.

### ⭐⭐⭐⭐ Decent charger with good (or possibly slightly better) batteries than OEM
*by C***S on July 17, 2016*

This charger has a nice feel - good fit and finish, and a decent heft, if not quite as weighty in the hand as I would have liked. It comes in a plain box, with two batteries, a charger and a Mini USB cable (as shown in the image above). NOTE - THERE IS NO MAINS CHARGER INCLUDED. One thing I prefer about these batteries over the original is that the little plastic pull tab on the bottom (used to extract the battery from the bottom of the camera), are positioned well away from the battery door hinge. This makes it far easier to extract them from what is a fairly small aperture. This means you need to find yourself a mains powered USB charger to drive this from. Without that, you will be dead in the water. I used my Trusty 36W, 4 port, Anker charger, a previous generation of the one found here: Anker 40W 4-Port USB Wall Charger This charger will supply a total of more than 4 Amps, way more than the 2 Amps the charger will max out at. The charger will supply a maximum of 750mA to each battery whilst charging. Not exactly lightning fast, but not fast enough to risk damaging the batteries either. Out of the box, each battery came with exactly the rated voltage of 3.85V, which meant they needed a good charge. I plugged them into the charger, connected it to the Anker, and let it charge. The LED indicator for each battery shows green when open or charged, and red under charge - always nice to have visual confirmation that the charger is doing its job. It took about an hour and ten minutes for each battery to charge to 4.3V - the same value as the OEM battery got when being charged through the camera. *Edit* After three weeks on the shelf, batteries are at 4.27 & 4.28V. One quirk to be aware of is that if you power on the charger and then insert the batteries, the LEDs may remain green (not charging). Instead, plug batteries in first and then connect charging cable in order to ensure correct operation. All in all, this is a good basic charger with what could be decent quality batteries (no idea regarding life cycles at this time), and functional piggy-back charger. Supplement it with a good USB charger unit and you get the ability to either charge two Yi 4K batteries at the same time, or charge one whilst another is in use. You can probably almost charge two batteries in the time it takes the camera to exhaust one battery.

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-06-01*