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Samsung 40T INR 21700 4000mAh 3.7V Unprotected High-Drain 35A Lithium Ion (Li-ion) Flat Top Battery

Samsung 40T 21700 Battery vertical
Samsung 40T 21700 Battery horizontal
samsung 40t 21700 angled positive terminal facing
samsung 40t 21700 angled negative terminal facing
Samsung 40T 21700 Battery vertical
Samsung 40T 21700 Battery horizontal
samsung 40t 21700 angled positive terminal facing
samsung 40t 21700 angled negative terminal facing
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$10.80
Usually ships the next business day
Qty.Price
1 - 3$10.80 ea.
4 - 19$10.60 ea.
20 - 99$10.50 ea.
100 - 499$10.00 ea.
500 - 999$9.90 ea.
1000+$9.85 ea.
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Description

Samsung 40T

High 35A Continuous Discharge Rate

The Samsung 40T is a 21700 battery that offers both a 35A max continuous discharge rate, and a large 4,000mAh capacity for extensive runtimes. That discharge rate can be further pushed to 45A for short-term (pulse) power.

As this is an unprotected cell with flat top terminals, the 40T is ideal in battery packs made for use in high-drain electronics.

Rechargeable & Reusable

Invest in a rechargeable battery that will last for years to come– this battery can be recharged 250+ times.

High Discharge Rate

35A max continuous discharge rate for high-drain electronics, great for making battery packs for devices that require minimum discharge rates.

3 Year Shelf Life

Stock up and store spare batteries with confidence– lithium ion batteries have a 3+ year shelf life, ensuring you always have a fresh replacement when you need it.

Notable Features

» 4,000mAh capacity provides long runtimes for all your devices
» Flat top terminal is perfect for use in making OEM battery packs
Please note that these batteries have flat top terminals, and may not be compatible with some devices.

WARNING: UNPROTECTED LI-ION BATTERY

Unless equipped and 'protected' with a PCB (protection circuit module) and/or similar device, lithium ion (li-ion) rechargeable battery cells are not recommended by BatteryJunction.com or our parent and associated companies, or the respective manufacturers, as a stand-alone product. Misuse of lithium ion rechargeable battery cells can pose a serious risk of personal injury or property damage.
Specifications
Battery Size:21700
Battery Capacity (mAh):4000
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Flat Top
Battery Shelf Life:3 Years
Packaging:Contractor Pack
Brand:Samsung
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:2.469oz
Product Dimensions:2.768" (L) x 0.835" (Diameter)
UPC:736952858474
MPN:INR21700-40T
Country of Origin:South Korea
Downloads
Reviews
5.0
11 Reviews
5
100% (11)
4
0% (0)
3
0% (0)
2
0% (0)
1
0% (0)
By Gregg G.
Columbus Oh.
Great battery, Great price!
March 23, 2021
Shipping was fast, Works great. Will do business again with Battery Junction.
By VR
Great battery
March 12, 2021
Excellent batteries with a reputation for reliability
and high power draw. Fast shipping at a great price.
By Richard C.
Riverside County, CA.
Great Battery.
February 8, 2021
The Samsung 21700 40T is a legend among flashaholics. And now that I finally got a few of them to run in my torches, I am sold on them. Can't believe the boost in brightness my lights have when using the 40T. The overall run times are good, too.

Buying them through Battery Junction, I knew I was getting legitimate 40T's, and good customer service.
By Randal
Fayette Alabama
A top of the line battery
December 20, 2020
Iím very happy with the performance of these dependable Li-ion cells they last a long long time on a charge and my flashlight seems brighter than ever I am pleased to recommend these batteries for any suitable use youíll never regret purchasing these ultra performance 21700s! 😃
By Tom
Melbourne, Florida
Great batteries
November 10, 2020
I am very happy with the performance of these Samsung batteries and the delivery service from Battery Junction.
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Samsung 40T INR 21700 4000mAh 3.7V Unprotected High-Drain 35A Lithium Ion (Li-ion) Flat Top Battery

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