Samsung INR18650-30Q 15A 3000mAh Flat Top 18650 Battery - Genuine - Wholesale Discount


  • $ 4.73
  • 204

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Genuine Samsung 30Q 3000 mAh batteries.  This is an amazing cell, extremely low internal resistance similar to the 25R but with a higher capacity of 3 Ah.  A great battery for 10-50W per battery devices.  As always, we've done extensive testing to be sure they're real so you can be confident you've got the real thing, grade A.  

Note that these can either be made in Samsung's South Korea or Malaysia plants.  These batteries are equivalent with the same part number and you may receive either one since they are commingled.  The Malaysian ones are listed as Samsung SDIEM whereas the Korean ones say Samsung SDI on them.

Samsung 30Q Datasheet


  • Chemistry:  INR
  • Max Continuous Discharging Current: 15A
  • Typical Capacity: 3000mAh
  • Size:  18650
  • Style:  Flat top
  • Approximate Dimensions: 64.85 ± 0.15 mm (L) x 18.33 ± 0.07mm (D) 
  • Weight: 48g max
  • Discharge cut-off voltage: 2.5V
  • Internal resistance:  ~20 mOhm
  • Nominal Voltage: 3.6V
  • Full Charge Voltage: 4.2V ± 0.05V
  • Unprotected
  • Origin:  South Korea or Malaysia


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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April A.
United States
  • What device/application do you use this with? Smok Species

Awesome batteries!

These batteries actually last all day in my vape mod. Love them!

David S.
United States
  • What device/application do you use this with? I use these in my vaping mods.

Great Store

Quality was good and price was right. would buy from again.

A Liion Wholesale Batteries Customer
  • What device/application do you use this with? Single 18650 VW Mods of all types and mech mods.

18650 Q30’s

Great batteries! Fast shipping! What more can you ask for? Are they free? No... but you definitely get your money’s worth from these batteries. : ) Happy customer!

Tyler A.
United States
  • What device/application do you use this with? Smoant Cylon

Great product ar a great price

Great product at a great price with fast shipping! I definitely recommend this product a d I definitely recommend Liion Wholesale!

Megan Styles
  • What device/application do you use this with? Voopoo Too/around 55 watts. Voopoo Drag2 around 55 watts

Great for dual battery vapes- per Mooch the battery GENIUS

I wanna let all of you know that Liion is the most trustworthy site I've EVER ordered from- & not just talking about battery needs- any website I've ever shopped at- even Amazon- I don't trust near as much as I do Liion. Ijs As for the Samsung 30Q's? I was annoying Mooch on YouTube (if you dont know who Mooch is and you use any li-ion battery you're missing out on alot of good info) but yeah I was bugging him about a year ago with my noob questions & he not only told me when using a dual battery device at a lower wattage, that the Samsung 30Q's are the way to go- he also highly recommended Liion Wholesale and the man knows what he's talkin about! The 30 Q's I've been using for about a year now & the performance is amazing- they hold a charge quite well as long as you follow direction on handling. Which seriously don't take battery use lightly because it's honestly some serious stuff! Know your batteries, wattage, voltage, mAH , don't over do it and store/travel properly with all batteries! Overall I never use anything except 30Qs or the LG chocolates. Both are amazing batts & you really can't go wrong with either one! I use the chocolates when I have a need for higher wattage. They perform well too- but I'll save that review for them- hope you all have a SAFE & happy vape sesh

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