Samsung 20S 18650 30A Flat Top 2000mAh Battery


$ 4.99
51 reviews

SKU: samsung-20s

This product is eligible for further discounts depending on how many you buy! You can purchase other products in the same category (batteries, chargers, or accessories) and it will add to the wholesale discount. Add some products to your cart to test!

Samsung INR18650-20S 18650 - Amazingly high power 18650 battery cell

The Samsung 20S is currently the hardest hitting 18650 battery available. With its 30A 2000mAh rating, it easily outperforms the LG HB series.  Even lower internal resistance (IR) than the the Molicel P26A and Murata VTC5A, although the P26A and VTC5A are 2600mAh cells and this one is 2000mAh. You can view Mooch's testing here.

We don't sell bogus batteries. When buying from LiionWholesale, you can rest assured that we only work with top tier manufacturers to bring you the best, most reliable, trustworthy batteries that will perform above and beyond your expectations. And we test every shipment to ensure consistent quality.

Priced per battery, not per pair.

Samsung 20S 18650 2000mah Specifications:

  • Size: 18650
  • Approximate Diameter: 18.43mm
  • Approximate Length: 65.0mm
  • Brand: Samsung
  • Manufacturer Rated Capacity: 2000mAh
  • Manufacturer Rated Standard Discharge Capacity: 1900mAh
  • Manufacturer Rated Max Discharge Current: 30A
  • Nominal Voltage: 3.6V
  • Peak Voltage: 4.2V
  • Protected: NO
  • Style: Flat Top
  • Color: Blue
  • Origin: South Korea

Batteries are sold individually.

If your battery is damaged or defective on arrival (will not take its first charge, or has issues with its first cycle), please let us know within 14 days of receiving your order and we'll make it right. Please read our complete store policy on defective products here for more information and to see if you're eligible.

Manufacturer ratings: Please see more information regarding manufacturer ratings here.

Battery Warning

Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.

Here are a few tips:

  • Never completely discharge batteries (below 2.5V under load or 3V unloaded)
  • Charge fully (to 4.2V) before first use
  • Never charge batteries to 4.3V or above
  • Do not charge unattended
  • Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
  • If you must store your battery, only store in a case or individual box in a cool and dry place at approximately 3.6-3.7V
  • Use only high quality battery chargers
  • Do not expose to heat
  • Do not connect the positive contact to the negative contact without an appropriate load
  • Never exceed the battery's specifications
  • Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
  • Always charge these batteries on and within fireproof material
  • Never leave rechargeable batteries in a recharging station unattended
  • Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
  • Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
  • Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
  • If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
  • If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire

By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.

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Phillip P.
United States


Great hard hitting batteries for any mech mod , or really anyone chasing clouds.

  • What device/application do you use this with? Voopoo drag / geek vape peerless rdta- w advanced vape supplies quad alien core coils. Also Geek Vape Athena squonker drop rta kidney puncher 24 gauge solid round wire.
Liion Wholesale Batteries Samsung 20S 18650 30A Flat Top 2000mAh Battery Review
United States

Decent battery

Nice little battery seems to have a good amperage rating battery life is exactly what I expected to be with a decent price

  • What device/application do you use this with? Single battery mechanical mod and a series mechanical mod
Liion Wholesale Batteries Samsung 20S 18650 30A Flat Top 2000mAh Battery Review
Rachel A.
United States

Don't last

Don't use if you vape over 30 watts lol. I vape at 60 and these aren't worth the distance I can spit. I have a feeling they're rewrapped. No go. Don't buy.

  • What device/application do you use this with? Voopoo Drag, Aegis Legend, MFENG
Liion Wholesale Batteries Samsung 20S 18650 30A Flat Top 2000mAh Battery Review

Liion Wholesale Batteries

Hi Rachel - Thank you for your review. While it is not very common, it is possible that you may have received a bad battery in your order. We will follow-up with you more via email to see if we cannot get to the bottom of this issue.

A Liion Wholesale Batteries Customer
Greg S.
United States

Bar none, the best place for batteries.

I have made at least 6 purchases from LIW and they are always great. Authentic quality cells with quick shipping and a free case. I use 20s mostly in my mechs and have a single for my ohm reader. I've also bought 20700's and 21700's here as well. Always top notch products and service.

Liion Wholesale Batteries Samsung 20S 18650 30A Flat Top 2000mAh Battery Review
stanton s.
United States

VERY good batteries

samsung 20s performs very similar to the sony vtc5a, hits very hard, and runs Very cool.

  • What device/application do you use this with? Tesla box mod
Liion Wholesale Batteries Samsung 20S 18650 30A Flat Top 2000mAh Battery Review

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