Welcome back! We saved your shopping cart for you: View Cart

Efest 3259 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Boxed

Efest 3259 18650 button top battery side angle
Efest 3259 18650 button top battery back side angle
Efest 3259 18650 button top battery with box
Box for Efest 3259 18650 button top battery
Efest 3259 18650 button top battery side angle
Efest 3259 18650 button top battery back side angle
Efest 3259 18650 button top battery with box
Box for Efest 3259 18650 button top battery
Click to Enlarge Image
$11.25
Save 10%
| Reg. Price $12.50
Usually ships the next business day

Request a Volume Quotation


Battery Junction 30 Day Warranty
Every Order Ships Directly From The United States
Authorized Dealer For All Products Sold
Battery Junction Wholesale Account Signup
Battery Junction Free Keylight On Purchases Over $20 Promo
Description

Efest 18650- Button Top

The Efest Li-Ion 18650 is one of the longest lasting, high quality 18650 batteries you can buy. It can be used to power many different devices due to its button top terminal and will keep them running for a long time. The Efest 18650 has an internal protection circuit which prevents it from both over charging and over discharging. This makes it safe to use in virtually any device that takes an 18650. Efest batteries are a reliable and long lasting power source that you can count on to fuel your devices.

Features:
  • Chemistry: Li-Ion
  • Voltage: 3.7V
  • Battery size: 18650
  • Capacity: 3400mAh
  • Estimated charge cycles: 500
  • Diameter: 0.73" (18.57mm)
  • Height: 2.74" (69.75mm)
  • Weight: 1.94 oz. (55g)
  • Button Top
  • Protected Cell
Specifications
Battery Size:18650
Battery Capacity (mAh):3400
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Product Certifications:CE, RoHS
Packaging:Boxed
Brand:Efest
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:1.94oz
Product Dimensions:2.746" (L) x 0.731" (Diameter)
MPN:3259-PC-BUTTON
Country of Origin:CN
Associated Battery Sizes:168A, 18650, 19670, Protected 18650, Unprotected 18650
Downloads

Efest doesn't provide public datasheets.

Reviews
3.3
7 Reviews
5
43% (3)
4
14% (1)
3
0% (0)
2
14% (1)
1
29% (2)
By Donn
SW Houston
I would definitely buy these again! Exceptional life!
November 1, 2019
In early 2017, we purchased several tac lights for general illumination and walking our English Lab in the evening. I had gone though a variety of 18650 batteries but feared that the lights themselves were failing after 2+ years. Thought I'd try a known, good battery before giving up on the hardware. Couldn't find anything decent on Amazon/eBay.
I found your site and ordered 4 of these. On our walk last night, we realized that it was the 5th night on the initial charge. Very impressive, having had to replace/recharge the other batteries after 2 days. Our walk in the evenings is about a mile, 35 minutes or so. It's not my goal to try to get a month out of a single charge, but these are a nice surprise.
We will definitely keep buying from you, thanks!
By Randall
Schererville, IN
Oversized 18650 battery does not fit
April 4, 2019
In the past few years, I have purchased several different brands of 18650 3.7V Li-ion batteries from different manufacturers. They have all fit easily in my ProVari Vape. These are slightly larger in length and circumference, which makes it impossible for me to use. Unfortunately, I waited beyond the seven (7) day 'Return Period' to try them. I would have returned them for an exchange had I not waited.
By Eric
Rock Island , IL
Efest 3259 18650 3400mAh
February 4, 2018
I was a little hesitant to buy these batteries after reading about people having fit issues with them. But, I took the plunge and bought 4 of them as back ups for my JetBeam T6 and I'm glad I did. I had no problems with fit or anything else for that matter (Efest must have fixed problem). These are great batteries with a lot of capacity. I will be getting more of these.
Prosprice
By Dean
Springfield, Missouri
Seems to hold the juice.
November 22, 2017
I'd read in a review that these were a little on the large side and wouldn't fit in a flashlight without peeling off the stickers. A test fit in my Nitecore TM06S proved that to be true. After removing both stickers and cleaning off the excess glue with Goo Gone, they slipped right in. I might have gotten by with just taking off one set of stickers as they are now actually loose. As far as providing power, they seem to be up to the task; they lasted the advertised time on my TM06S.
ConsMight not fit in your device without removing stickers.
By Eric W.
Eureka, CA
So-so
October 9, 2015
Great battery. Have to peel the labels off to get them to fit my headlamp; a bit ridiculous.
ProsBig battery
ConsCrappy labeling that interferes with their fit.
Q&A
1 Question & 1 Answer
Steve
from mesquite, tx asked:
October 2, 2014
How many batteries per unit purchase?
1 Answer
These batteries are sold individually.
Customer Service
on October 2, 2014

Efest 3259 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Boxed

  • $11.25
  • & Free Shipping On Orders Over $50
  • In Stock
Top