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WARNING: This product contains nicotine. Nicotine is an addictive chemical. |
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Samsung 30T 21700
Genuine Samsung 30T INR 21700 batteries with 3000mAh capacity and 35A maximum discharge current are among the most powerful battery options on the vaping market.
This Samsung 30T (INR21700-30T) is widely used in high drain devices and has an actual 3000mAh capacity and 35A maximum continuous discharge.
The compact and powerful flat-top Samsung 30T Lithium-Ion battery is a fantastic choice for a 21700 mech mod or a single-21700 regulated vape device.

Manufacturer: Samsung SDI
Model: 30T
Chemistry: Li-ion
Max Continuous discharge Rating: 35A
Nominal capacity: 3000mAh
Nominal voltage: 3.6V
Maximum Voltage: 4.2V
Discharge Cutoff Voltage: 2.5V
Manufacturing Number: INR21700-40T
Approximate Weight: 68.2g
Approximate Dimensions: 21.1mm x 70.2mm
Posted by Mark on Oct 4th 2025
Great battery came in a cook box I kept. Useful to store the old ones anyway. Battery is hog discharge and can keep going all day like that in heat or cold. It’s one you forget which is a good thing, it just works great and you don’t have to charge it every hour like my last one that was ~3 years old.
Posted by Jose dumeng on Mar 18th 2023
You get great hours of this battery. Nice wow !!
Posted by Jose dumeng on Jan 18th 2023
Long hour of vape for me on this battery. Wazupppp!!!! Lol lol. Nice.
Posted by Jose dumeng on Feb 19th 2022
They have great services and fast delivery
Posted by Ben Pupeza on Feb 17th 2022
It came in a plain box with no markings. The battery doesn’t have factory samsung markings on it. It has a paper sticker on with nothing identifying it as a samsung 30t. It’s a battery, it works, and the price is better than a generic battery at the local vape shop. I just have no way of confirming that it is genuine samsung.
Posted by Vivian on Nov 12th 2021
Great product, these batteries last much longer than my 18650 battery. Very happy with these
Posted by Unknown on Sep 5th 2021
I tried to contact a few times after I received the batteries and no one responded. It's past the time I can return them now, so I guess I'm out with the cost. I usually order exactly what I need and have no problems. Order wrong item once and not a word back. Thanks
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