Samsung 30Q 18650 Battery


In stock


Our favorite battery for regulated mods, rated at 3000 mah and 15 amps

capable of safe output up to 50 watts per battery.

 If you are running a dual battery device at or below 100 watts total, or a single battery

device up to 50 watts this is the best all around battery of choice.


*Do Not use these in a mechanical mod. We at Heavy Jam Vape do not sell or endorse the use

of mechanical mods.

If your device takes an external battery but has no lcd screen or adjustment buttons it is a ‘mech mod’

and requires special care in use. As strongly as we suggest avoiding them entirely, if you do choose to 

use one please do your homework and keep vape safe.




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


Origin:  South Korea or Malaysia



Batteries are sold individually.



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. Your device/ mod is not a battery charger and we do not warranty faults 

arising from charging through the micro usb port. You can find more about this on our warranty and returns 

policy page.


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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