I have a 7 year warranty on these batteries how do I get more? it’s been a whole year and some now?

My understanding is that you have to contact their customer service department. However, there may be a catch, in that you would have had to given them a positive review within their allotted time frame so as to be registered with them. They only give you a week to review the product.

Interested in buying for dog fence collar. How long do these typically last in your dog collar? Would you buy the batteries again?

I use these batteries for my 3 Boston Terrier's dog collars. If I buy batteries from the collar manufacturer they are $20.00 for one. Amazon price is $13.95 for ONE. They are shrink-wrapped and when cut apart they are 2 CR1/3N 3V-B6 Lithium batteries. A six-pack of the CELLEWELL CR1/3N 3V-B6 Lithium batteries about $2.50 for each battery! And they are the longest-lived dog collar battery I've used.

Does anyone know why these wouldn’t work stacked in a series for a perimeter dog collar?

That's how we use them oh, and they work fine.

What is the length of these batteries?

They are approximately 3/8 of an inch

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CELEWELL 【10-Year Warranty】 4Pcs CR2 3V 1000mAh Lithium Battery | Applications - Smoke alarms,alarm system,timer switch,flashlight,laser sights,tactical light,security system,camera.

Product ID: 422288585

Details

Number of Batteries
4 CR2
Brand
CELEWELL
Battery Cell Composition
Lithium
Battery Capacity
1000 Hour
Recommended Uses For Product
Camera

⚡3V Stable Power Output

🔋1000mAh High Capacity

🛡️10-Year Leak-Proof Warranty

14090CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Details

Number of Batteries
4 CR2
Brand
CELEWELL
Battery Cell Composition
Lithium

Description

🔋 Power that lasts a decade—because your gear deserves the best.

DECADE LONG RELIABILITY - Industry-leading 10-year no-leak warranty ensures peace of mind and zero interruptions.
UNMATCHED POWER RESERVE - 1000mAh capacity delivers long-lasting energy for your critical devices.
VERSATILE PRO GRADE USE - Perfect for cameras, smoke alarms, tactical lights, and security systems—never get caught powerless.
CERTIFIED SAFETY ASSURANCE - ISO9001, UL, CE, RoHS, and UN38.3 certified for premium, worry-free performance.
PRECISION ENGINEERED QUALITY - 16 years of expertise and advanced manufacturing guarantee superior durability.

CELEWELL’s CR2 lithium batteries pack a robust 1000mAh capacity with a stable 3V output, backed by 16 years of manufacturing expertise and a rare 10-year no-leak warranty. Certified by top safety standards, these batteries are engineered for professional-grade reliability across cameras, alarms, and tactical devices—ensuring you stay powered without compromise.

Specifications

ASIN	B09LM3P1JB
Amperage	4 Amps
Antenna Location	Camera
Battery Capacity	1000 Milliampere Hour (mAh)
Battery Cell Composition	Lithium
Battery Cell Type	Lithium
Best Sellers Rank	#39,696 in Health & Household ( See Top 100 in Health & Household ) #128 in 3V Batteries
Brand	CELEWELL
Customer Reviews	4.6 out of 5 stars 605 Reviews
Manufacturer	CELEWELL
Model Name	CR2 4Pcs
Model Number	CR2 4Pcs
Number of Batteries	4 CR2 batteries required.
Recommended Uses For Product	Camera
Reusability	Single Use
Unit Count	4.0 Count
Voltage	3 Volts

Reviews

K**L

Awesome

29.03.2026

A**N

great price

worked great

21.06.2025

N**A

Works well and last longer than others

I only use this in my lasers. They are on for hours at a time in the desert heat and winter.

14.09.2022

B**A

Batteries did not last long but they refunded my full purchase price without even asking

Batteries are batteries

21.05.2023

J**B

Very good battery's

I like them, 1st for the price versus buying locally big cost difference and 2nd for what I use them for they last surprisingly well a small but powerfully bright flash light good buy will be buying more of them

14.05.2023

D**I

Right size...

Great..

3.03.2025

A**N

Great

Bought these for my range finder. Work perfect. Battery life is good.

12.07.2024

A**R

Can't take these on airplanes

Good price

5.06.2023

A**D

ممتازة وطويلة العمى

كنت استعمل نوعيات كانت لاتدوم معاي ولاكن هذا المنتج فعلن طويل العمر

3.10.2025

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14090CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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