Description
Samsung 45T 21700 Battery – High-Drain Lithium-Ion Power Cell
Overview
The Samsung 45T 21700 Battery is a high-drain lithium-ion rechargeable cell, engineered for serious performance in demanding applications. With a solid 4500mAh capacity and an impressive 50A continuous discharge rate, it’s ideal for high-powered devices that require both endurance and a strong current output.
Key Features
Specifications
| Specification | Details |
|---|---|
| Brand | Samsung |
| Model | 45T |
| Battery Type | 21700 |
| Capacity | 4500mAh |
| Nominal Voltage | 3.6V |
| Full Charge Voltage | 4.2V |
| Discharge Cutoff Voltage | 2.5V |
| Continuous Discharge Rate (CDR) | 35A without temp cut | 50A with 80C temp cut |
| Rechargeable | Yes |
| Protected | No (Unprotected cell – use with proper safety measures) |
| Cycle Life | ~300+ charge cycles |
| Diameter | 21.2mm |
| Length | 70.0mm |
| Weight | ~70g |
Applications
The Samsung 45T is perfect for high-performance setups across a variety of industries, including:
Safety Guidelines & Warnings
IMPORTANT SAFETY NOTICE ️
Lithium-ion batteries demand responsible handling to avoid serious injury or property damage.
General Safety Guidelines
Prohibited Uses & Handling
User Responsibility & Risk Acknowledgment
Use of the Samsung 45T 21700 Battery is at your own risk.
By purchasing, you agree to follow all safety protocols outlined above.
Improper use may lead to fire, explosion, injury, or death.
You acknowledge that this is a high-drain cell requiring expert-level handling and setup.
Frequently Asked Questions
Yes. All cells we sell are guaranteed authentic, Grade A, and brand new. Not reclaimed, used, or rewrapped. We also prioritize fresh manufacturing dates, so you’re not receiving cells that have been sitting around for years.
Some sellers offer Grade B cells that can have inconsistent voltage, higher internal resistance, reduced performance, or other issues. You will never receive a Grade B, reclaimed, or used cell from us.
These are sold as bare cells (no welded tabs or leads) unless the listing explicitly states otherwise.
To make pack building easier, our cells are sorted and batched for matching internal resistance, voltage, and date code, so they arrive ready to be assembled into a pack.
U.S. orders ship from Atlanta, Georgia.
For international orders outside the USA, we may ship from a different fulfillment hub depending on the product’s manufacturing location, to ensure faster and more efficient delivery.
Shipments within the USA, delivery in 1–3 days (up to 5). Expedited shipping available. International shipping varies—contact us to inquire.


