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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

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Currently unavailable.
We don't know when or if this item will be back in stock.

Brand	EforTek
Specification Met	CE, FCC
Input Voltage	5 Volts

About this item

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

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Product information

Package Dimensions

3.2 x 2.9 x 2.2 inches

Item Weight

2.39 ounces

ASIN

B01FQZWPAQ

Item model number

AZ16-1

Batteries

1 Lithium Ion batteries required. (included)

Customer Reviews

3.7 out of 5 stars

Is Discontinued By Manufacturer

Date First Available

June 10, 2016

Manufacturer

EforTek

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Product 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 code

Each 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 Lite
Xiaomi YI YI 360 VR

Customer reviews

3.7 out of 5

26 global ratings

2 star

How customer reviews and ratings work

Customers say

Customers like the quality of the battery charger. They say it works well and is a decent charger. However, some customers have different opinions on battery life.

AI-generated from the text of customer reviews

6 customers mention6 positive0 negative

Customers are satisfied with the quality of the battery charger. They mention that it works well, holds the charge, and is a functional piggy-back charger. Some say that the batteries last a full game without any problem.

"...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..." Read more

"...I highly recommend using these Efor Tek batteries they last a full game no problem." Read more

"worked ok. not as good as the original but nice to have." Read more

"...The charger works well." Read more

12 customers mention6 positive6 negative

Customers are mixed about the battery life of the charger. Some mention that the batteries work well in their YI 4K+ Acton Camera, while others say that they don't last quite as long as the original battery.

"...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..." Read more

"...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...." Read more

"These batteries work great!..." Read more

"These were the wrong sized batteries, completely for this camera! I purchased them for my Yi 4K Mirrorless camera...." Read more

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Top reviews from the United States

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Steve D

Yi 4k compatible!

Reviewed in the United States on January 10, 2017

Verified Purchase

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.

One person found this helpful

Helpful

pgaroni

Good battery, dual charger is a plus

Reviewed in the United States on February 9, 2018

Verified Purchase

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.

One person found this helpful

Helpful

Compass

Decent charger with good (or possibly slightly better) batteries than OEM

Reviewed in the United States on July 17, 2016

Verified Purchase

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.

11 people found this helpful

Helpful

Scott

Wrong Batteries!

Reviewed in the United States on January 7, 2019

Verified Purchase

These were the wrong sized batteries, completely for this camera! I purchased them for my Yi 4K Mirrorless camera. I have the movie camera, looks like a dslr. These batteries proved to be roughly 2/3 the size I needed. In disgust and frustration, I never sent them back. Since I have checked on Amazon, no luck, anything I might see seems like it could be for the other, evidently more popular models. The sellers are no help, and the manufacturer created a problem in not more clearly naming different models. I'm left with running around town on mass transit, camera over the shoulder, to different camera sellers, and hoping. This IS a glaring example of why I despise proprietary batteries!

Helpful

RES

Great Price!

Reviewed in the United States on October 4, 2016

Verified Purchase

Great price on this two pack of batteries for the Yi 4K Action Camera.
The batteries don't last quite as long as the original battery but they are still a great value.

One person found this helpful

Helpful

Martin Millena

Does the job

Reviewed in the United States on April 4, 2017

Verified Purchase

Drained 10% on the shelf after a week, make sure you top them up before filming. For the price, it's acceptable but I would recommend something else if you have a choice

Helpful

Just my opinion

These batteries work great!

Reviewed in the United States on January 28, 2018

Verified Purchase

These batteries work great!
Far superior to the battery that came with my YI Lite Action Camera which failed twice while videoing my sons hockey games not even half the game even though it showed plenty of battery left on the display.
Of course we missed two of his best saves he has made all year, which is why you buy the camera.
I highly recommend using these Efor Tek batteries they last a full game no problem.

Helpful

Amazon Customer

Highly recommend

Reviewed in the United States on January 20, 2017

Verified Purchase

Very nice batteries, work great with my xiaomi camera. One battery lasts for about a couple of hours of straight footage.

One person found this helpful

Helpful