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![[4 Pack] Samsung INR21700-40T 4000mAh 35A High-Drain Li-ion Battery Cell – Flat Top, Rechargeable with Protection Circuit](https://cdn.shopify.com/s/files/1/0419/0221/1226/files/4-pack-samsung-inr21700-40t-4000mah-35a-high-drain-li-ion-battery-cell-flat-top-rechargeable-with-protection-circuit-3464015.jpg?v=1779405215)
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Description
[4 Pack] Samsung INR21700-40T 4000mAh 35A High-Drain Li-ion Battery Cell – Flat Top, Rechargeable with Protection CircuitThe Samsung INR21700 40T is a premium high performance lithium ion battery cell designed for demanding applications, including electric vehicles, power tools, and portable electronics. With a 4000mAh nominal capacity and 35A continuous discharge rate, it delivers outstanding power output and long lasting performance. Built with advanced lithium ion chemistry for high energy density and long cycle life, this cell maintains consistent output even under
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
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Best in 7 days
4.7 ★★★★★
Based on 1965 reviews
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Product Reviews
★★★★★ 5
Great
Color: Beta Tint Assorted Locked-in Fit, Size: Medium
Great socks - comfortable, wear everyday
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Reviewed in the United States on July 14, 2025
★★★★★ 5
Comfortable athletic sock
Color: White/Halo Gray Assorted Locked-in Fit, Size: Medium
Love these socks. Neutral enough colors to pair with tennis shoes for daily wear but still a fun pattern. Comfortable, and stay in place without slipping down. Fit true to size.
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Reviewed in the United States on July 9, 2025
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
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Reviewed in the United States on May 28, 2019
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
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Reviewed in the United States on December 2, 2018
★★★★★ 5
Great quality, no holes or fading!
Size: Medium, Color: Black/Assorted
I purchased these socks a couple years ago and love them so much that I just recently purchased them again! They fit perfectly, don't make my feet sweaty, and hit the ankle at the right spot. The material is so good that over years they have not faded and even though I wear the same few pairs every day, they have no signs of thinning or holes! These are the ONLY socks that I buy. I have the black ones as well as the multi-colored ones. I will never buy another brand or style again!
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Reviewed in the United States on January 11, 2020
