Welcome back! We saved your shopping cart for you:
View Cart
UltraFire TR 18650 2400mAh 3.7V Unprotected Lithium Ion (Li-ion) Button Top Battery - Bulk
- Item #: ULTRAFIRE-18650-2400-BLUE
- Brand: UltraFire
$7.25
Usually ships the next business day
Qty. | Price |
1 - 3 | $7.25 ea. |
4+ | $7.15 ea. |
Description
"Ultrafire Blue XSL 18650 2400mAh 3.7v Rechargeable Battery"

- High capacity and reliable power source
- Ultrafire 2400mAh battery
- Non-protected cell design
- Voltage: 3.7V (also called 3.6V and 4.2V)
- Capacity: 2400mAh
- Length: 65.5 +/- 0.2mm
- Diameter: 18.4 +/- 0.2mm
- Weight: 44.5 gram

Specifications
Battery Size: | 18650 | ||||
Battery Capacity (mAh): | 2400 | ||||
Battery Chemistry: | Li-Ion | ||||
Battery Voltage: | 3.7 | ||||
Battery Terminal Type: | Button Top | ||||
Battery Shelf Life: | 3 Years | ||||
Packaging: | Bulk | ||||
Brand: | UltraFire | ||||
Warranty: | Battery Junction 30-Day Warranty | ||||
Return Policy: | Battery Junction Return Policy | ||||
Product Weight: | 1.57oz | ||||
Product Dimensions: | 2.579" (L) x 0.724" (Diameter) | ||||
UPC: | 736952860477 | ||||
MPN: | ULTRAFIRE-18650-2400-BLUE | ||||
Country of Origin: | China | ||||
Associated Battery Sizes: | 168A, 18650, 19670, Protected 18650, Unprotected 18650 |
MSDS
Reviews
Review Summary
4.7
11 Reviews
5
73% (8)
4
27% (3)
3
0% (0)
2
0% (0)
1
0% (0)
By Chuydela
El Paso, TX
Greta product
April 13, 2023
I used this LiIon battery to replace one on a portable very small drill and it fits and works great.
By Ambrose C.
Denver, Co
Works great!
April 1, 2022
After some trial and error (by me) I finally got the correct batteries for my exterior solar lights. So far they work great! They are lower mAh than the originals but only 2400 vs 2600. They still do what I need. The people at Battery Junction were amazing. Very patient, very helpful and understanding. Great customer service. I will buy again!
By Keith
Nacogdoches
Great battery
September 21, 2021
Battery performs great. But you shipping absolutely sucks!! Even though I went the cheapest shipping it should have came quicker than it did. Other than very pleased with the product.
By Hessey
CA
HAD TO SETTLE FOR LESS
August 29, 2020
Hi! I had to buy 2400 mAh instead of 2600 mAh, but was told that was all they had, and it would work, just wouldn't last as long. And they're working. Very hard to find these batteries; I think becaused they are un-protected. The staff are very friendly, and helpful.
By Missy
TX
Good Quality
July 3, 2020
Good quality for a good price.
Q&A
1 Question &
1 Answer
Gary Jones
from Grove, Oklahoma asked:
April 6, 2014
How long do you charge these batteries? 1, 2, or 4 hours?
1 Answer
Depending on your charger its varies from about an hour to a few hours. If you have a smart charger, it should indicate when the battery is finished charging.
We recommend the Nitecore i4 Smart Charger. This will charge these UltraFire 18650 batteries in approximately 3 hours.
Submitted by:
Customer Service
on April 7, 2014
Bright Buys
Titanium Innovations CR123A 1600mAh 3V 3A Lithium (LiMnO2) Button Top Photo Battery - Bulk
$1.15(254 Reviews)
As Low As: $1.05 Ea.Free Shipping Over $50!Fitorch P25 Little Fatty LED Flashlight - 4 x CREE XP-G3 - 3000 Lumens - Uses 1 x 26350 (included)
$66.95(62 Reviews)
Options AvailableFree Shipping!Nitecore Digicharger D2 2-Channel Smart Battery Charger for Li-ion, Ni-Cd, & NiMH Batteries
$23.95(59 Reviews)
Free Shipping Over $50!Olight S1R II Baton Rechargeable Flashlight - CREE XM-L2 U4 LED - 1000 Lumens - Uses 1 x RCR123A (included)
$64.95(48 Reviews)
Free Shipping!Panasonic Eneloop BK-4MCCA-8BA AAA 800mAh 1.2V Low Self Discharge Nickel Metal Hydride (NiMH) Button Top Batteries - 8 Pack Retail Card
$17.50(34 Reviews)
Free Shipping Over $50!
Accessories
UltraFire LC 18500 1600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
$6.95

As Low As: $5.95 Ea.
Free Shipping Over $50!
UltraFire XSL 18350 1200mAh 3.7V Unprotected Lithium Ion (Li-ion) Button Top Battery - Bulk
$4.95

As Low As: $4.45 Ea.
Free Shipping Over $50!
UltraFire UF 17670 1800mAh 3.7V Unprotected Lithium Ion (Li-ion) Button Top Battery - Bulk
$6.75

As Low As: $6.25 Ea.
Free Shipping Over $50!
UltraFire UF 17500 1300mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
$7.95

As Low As: $7.25 Ea.
Free Shipping Over $50!
UltraFire UF 14500 900mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
$5.25

As Low As: $4.45 Ea.
Free Shipping Over $50!
Related Items
Free Shipping Over $50!
Nitecore Digicharger D4 4-Channel Smart Battery Charger for Li-ion, Ni-Cd, and NiMH Batteries
$39.95

Free Shipping Over $50!
UltraFire FLB 18650 3000mAh 3.7V High-Capacity Protected Lithium Ion (Li-ion) Button Top Battery - Priced Per Cell
$8.95

As Low As: $8.75 Ea.
Free Shipping Over $50!
TrustFire RCR123A / 16340 880mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
$3.75

As Low As: $3.05 Ea.
Free Shipping Over $50!
UltraFire UF 17670 1800mAh 3.7V Unprotected Lithium Ion (Li-ion) Button Top Battery - Bulk
$6.75

As Low As: $6.25 Ea.
Free Shipping Over $50!
UltraFire UF 17670 1800mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
$7.95

As Low As: $6.75 Ea.
Free Shipping Over $50!
UltraFire UF 14500 900mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
$5.25

As Low As: $4.45 Ea.
Free Shipping Over $50!
UltraFire UF AA 14500 900mAh 3.6V Unprotected Lithium Ion (Li-ion) Button Top Battery - Boxed
$4.95

As Low As: $4.75 Ea.
Free Shipping Over $50!
UltraFire UF AAA 10440 500mAh 3.6V Unprotected Lithium Ion (Li-ion) Button Top Battery - Bulk
$3.25

As Low As: $2.90 Ea.
Free Shipping Over $50!
UltraFire TR 18650 2400mAh 3.7V Unprotected Lithium Ion (Li-ion) Button Top Battery - Bulk
- $7.25
- & Free Shipping On Orders Over $50
- In Stock
Top