BAK 45D 21700 4500mAh 60A Battery
BAK 45D 21700 4500mAh 60A Battery
BAK 45D 21700 4500mAh 60A Battery
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BAK 45D 21700 4500mAh 60A BatteryBAK 45D 21700 4500mAh 60A BatteryBAK 45D 21700 4500mAh 60A Battery
BAK

BAK 45D 21700 4500mAh 60A Battery

$8.99 $5.65
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Description

BAK 45D 21700 Battery – High-Performance Lithium-Ion Power Cell

Data Sheet

Overview

The BAK 45D 21700 Battery is a high-capacity lithium-ion rechargeable power cell, designed for superior performance and efficiency. With a 4500mAh capacity and a continuous discharge rate of 60A, this battery is perfect for high-drain applications, ensuring long-lasting power, stability, and durability across various demanding uses.

Key Features

High Capacity: 4500mAh delivers extended runtime before requiring a recharge.
High Discharge Rate: 60A continuous discharge, ideal for high-performance applications.
Lithium-Ion Chemistry: Ensures efficiency, stability, and minimal power loss.
Rechargeable & Durable: Engineered for multiple charge cycles with consistent power output.
Larger 21700 Size: Provides increased energy density compared to 18650 cells.

Specifications

Specification Details
Brand BAK
Model 45D
Battery Type 21700
Capacity 4500mAh
Nominal Voltage 3.6V
Full Charge Voltage 4.2V
Discharge Cutoff Voltage 2.5V
Continuous Discharge Rate (CDR) 60A with 80C Temp Cutoff
Rechargeable Yes
Protected No (Unprotected cell – use with proper safety measures)
Cycle Life ~600+ charge cycles
Diameter 21.3mm
Length 70.5mm
Weight ~70g

Applications

The BAK 45D 21700 is widely used in high-drain applications, including:

Electric Vehicles (EVs) & E-Bikes – Delivers sustained power for extended performance.
Battery Packs – Frequently used in custom battery assemblies for energy storage solutions.
Power Tools – Ideal for cordless drills, saws, and other industrial tools.
RC Vehicles & Drones – Provides reliable, high-output energy for demanding operations.
Flashlights & Tactical Gear – Suitable for high-intensity LED flashlights and professional gear.
Energy Storage Systems (ESS) – Supports solar storage and backup power applications.

Safety Guidelines & Warnings

Lithium-ion batteries require proper handling and understanding of safety precautions. Misuse can result in fire, explosion, or serious injury.

General Safety Guidelines

Only use if you have prior knowledge of lithium-ion battery safety.
Always charge on a fire-resistant surface—never leave batteries unattended while charging.
Use only a smart charger designed for lithium-ion batteries.
Store in a protective case—never carry loose batteries in a pocket, bag, or purse.
Keep away from metal objects (keys, coins, tools) to prevent short circuits.
Only use within the manufacturer’s specifications and in protected battery packs.
Resellers must provide these safety warnings to all customers.

Prohibited Uses & Handling

DO NOT use this battery in e-cigarettes, vaporizers, or similar devices.
DO NOT mix old and new or used and unused batteries.
DO NOT short circuit, puncture, crush, incinerate, or modify the battery.
DO NOT use if the battery wrapper is damaged or torn.
DO NOT overcharge or over-discharge—this may result in failure.
DO NOT expose the battery to liquids, extreme heat, or direct sunlight.
DO NOT solder directly—only use spot welding for battery pack assembly.

User Responsibility & Risk Acknowledgment

  • The user assumes full responsibility for proper handling, charging, and storage.
  • Misuse or mishandling may result in serious injury or damage.
  • No guarantee of compatibility with specific devices is provided.
  • By purchasing this battery, you acknowledge and agree to follow all safety guidelines.

Stay safe and handle responsibly.

Frequently Asked Questions

Find answers to common questions about our products

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.

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