18650 Battery Store Promo Codes and Coupons September 2025

18650 Battery Store

18650batterystore.com is a specialized online retailer focused on lithium-ion batteries and related accessories. They offer a wide selection of high-quality batteries from reputable manufacturers, including protected and unprotected cells, battery holders, and chargers. The store is known for its competitive pricing and authentic products, serving both individual consumers and business customers.

18650batterystore.com

Today's 18650 Battery Store discount codes

TOP PICK

2% off

2857 uses

high

worked 20 days ago

2% Off Storewide at 18650 Battery Store

25% off

490 uses

high

worked 5 months ago

Huge Discounts: Get 25% Off All Items for a Limited Time

15% off

1 uses

medium

worked 6 months ago

Get up to 15% off with promo code

20% off

1 uses

medium

worked 4 months ago

Score 20% off with discount code

Featured 18650 Battery Store Products

24V 100Ah | Heated & Bluetooth | LiFePO4 Battery

INTRODUCTION PRICE - LIMITED TIME SALE! LiFePO4 Chemistry Waterproof - IP67 Rated Bluetooth Connectivity - (iOS and Android Apps) Heated - Most LiFePO4 cannot be charged below 0C / 32F, with the built in heating function you can charge as low as -20C. Long life & Zero maintenanceOur batteries have a 11-year design life. No watering, no acid, no corrosion. Drop-in replacements & Fast chargeEasy installation for replacing lead-acid batteries. The batteries can stay on board theequipment for charging. Endure power & 11 year warrantyEasily power your trolling motors much longer. Valuing much for your investments. Waterproof & corrosion protectionResistant to some extreme conditions. All-weather batteries They can work well in cold or high temperatures. Much wider than the lead-acid batteries can withstand. WiFi connection & BluetoothEverywhere All batteries are certified in Specifications: Manufacturer Epoch Batteries Model B24100B Chemistry LiFePO4 Nominal Capacity 100Ah Continuous Discharge Rating 120A , 200A (60 seconds) Maximum Charge Rating 50A Cycle Life 3,500 cycles (70% DOD) Nominal Voltage 24V Heated Yes Bluetooth Yes Waterproof IP67 Approx. Dimensions (LxWxH) 13.1in x 10.2in x 10.2mm Approx. Weight 49lbs Country of Origin China Connect in Series Yes, max 2 Connect in Parallel Yes, max 4 Lithium Marine Trolling Batteries - Epoch Batteries

USD 1199.00

Samsung 50E 21700 5000mAh 9.8A Battery

Samsung 50E 21700 5000mAh 9.8A Battery - INR21700-50E (2) NOT FOR USE IN E-CIG OR VAPE Alternative option: Molicel P42A 21700 Battery Specifications: Manufacturer Samsung SDI Model 50E (2) Size 21700 Positive Terminal Flat Top Nominal Capacity 5000mAh Continuous Discharge Rating (max) 9.8A Nominal Voltage 3.6V Maximum Voltage 4.2V Discharge cut-off Voltage 2.5V Protected No Rechargeable Yes Approx. Dimensions 20.25mm x 70.80mm Approx. Weight 68.67g Country of Origin Republic of Korea, China or Malaysia Associated Names INR18650-50E Data Specification Sheet Samsung 50E Datasheet WARNING: The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. No express or implied guarantee of compatibility with any device can be made. Charge only with a smart charger designed for this specific type of lithium ion battery. Do not mix and match old and new, used and unused batteries. DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE MISUSING OR MISHANDLING LITHIUM ION BATTERIES CAN POSE A SERIOUS RISK OF PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED ONLY USE WITH PROPER CIRCUITRY IN A PROTECTED BATTERY PACK ONLY USE WITHIN MANUFACTURER LISTED SPECIFICATIONS DO NOT STORE LOOSE BATTERY IN A POCKET, PURSE ETC. - ALWAYS USE A PROTECTIVE CASE OR BOX KEEP AWAY from metal objects to prevent short circuiting DO NOT short circuit DO NOT use if wrapper or insulator is damaged or torn DO NOT use if damaged in any way DO NOT overcharge or over-discharge DO NOT modify, disassemble, puncture, cut, crush, or incinerate DO NOT expose to liquids or high temperatures DO NOT solder, spot weld only User must be familiar with handling lithium ion batteries before purchase Usage of batteries is AT YOUR OWN RISK ALWAYS charge in or on a fire-proof surface and never leave charging batteries unattended RESELLERS MUST FORWARD ALL WARNINGS TO ALL CUSTOMERS FOR THEIR REFERENCE AND SAFETY

USD 4.99

Reliance 21700 RS50 5000mAh 70A Battery - ETA SEPT 13

Reliance 21700 RS50 5000mAh 70A Battery Contact us for pre-orders DATA SHEET

USD 5.99

BAK 45D 21700 4500mAh 60A Battery

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. 🔋

USD 3.25

What 18650 Battery Store coupons are available today?

We track so many discount codes. Read about today's 18650 Battery Store coupon statistics.

18650 Battery Store deals available today

Active 18650 Battery Store codes

2% off

Biggest discount available

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Exclusive single-use codes shared by our community (19 active codes).
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Note: Our community tests every 18650 Battery Store promo code and shares results in real-time. Check success rates and shopping tips in the activity feed to find what works best for your purchase.

20% off

7 uses

medium

worked 7 months ago

Score 20% off with coupon code

20% off

2 uses

medium

worked 6 months ago

Take 20% off with promo code

15% off

2 uses

medium

worked 3 months ago

Get 15% off with coupon code

10% off

1076 uses

low

worked 11 months ago

10% Off Select Items at 18650 Battery Store

More 18650 Battery Store Products

12V 50Ah LiFePO4 Battery with Bluetooth - Epoch Essentials

LIMITED TIME SALE! LiFePO4 Chemistry Waterproof - IP65 Rated Bluetooth Connectivity - (iOS and Android Apps) Long life & Zero maintenanceOur batteries have a 11-year design life. No watering, no acid, no corrosion. Drop-in replacements & Fast chargeEasy installation for replacing lead-acid batteries. The batteries can stay on board theequipment for charging. Endure power & 11 year warrantyEasily power your trolling motors much longer. Valuing much for your investments. Waterproof & corrosion protectionResistant to some extreme conditions. All-weather batteries They can work well in cold or high temperatures. Much wider than the lead-acid batteries can withstand. All batteries are certified in Specifications: Manufacturer Epoch Batteries Model 1250A-ES Chemistry LiFePO4 Nominal Capacity 50Ah Continuous Discharge Current 50A , 170A (3 seconds) Maximum Charge Current 50A Cycle Life 4,000 cycles (70% DOD) Nominal Voltage 12.8V Bluetooth Yes Waterproof IP65 Approx. Dimensions (LxWxH) 7.7in x 6.5in x 6.9mm Approx. Weight 15lbs Country of Origin China Connect in Series Yes, max 4 Connect in Parallel Yes, max 4 Apple: https://apps.apple.com/us/app/epoch-pro/id6463113720 Android: https://play.google.com/store/apps/details?id=com.epoch.ecoenergy

USD 249.00

XTAR VC4 4 Bay Digital LCD Battery Charger

XTAR VC4 4 Bay Digital LCD Battery Charger 18650 20700 21700 Product Highlights: 4 Bay Digital Charger Two Charging Speeds - .5A x 4 or 1A x 2 LCD High Tech Display Compatible with 18650, 20700, 21700, 26650 and more Reverse polarity protection protects if cell is entered in the wrong way Packaging Contents: Xtar VC4 digital battery charger Xtar USB cable Xtar carrying bag Warranty Card User Manual Scratch and Check validation serial number Additional Features: LCD display shows current, voltage, and capacity of charge 4 independent channels Capability to charge different types of batteries at the same time Compatible with all sizes of cylindrical lithium-ion batteries ranging from 10440 to 26650 0V activation can bring dead batteries back to life Automatically detects battery power status and selects the appropriate voltage and charge mode Automatically stops when charging is complete and prevents batteries from being over-charged Features reverse polarity protection if you accidentally insert a battery the wrong way Specifications: Input – DC 5V 2.1A Cutoff Voltage for Li-ion Battery – 4.2V ±.05V Cutoff Voltage for Ni-Mh Battery – 1.45V ±.1V Compatible with: 3.6V/3.7V Lithium ion Batteries Most Cylindrical Lithium-ion Batteries Ranging In Size From 10440 To 26650

USD 18.99

EVE 26V 18650 2550mAh 7.5A Battery

EVE 26V 18650 2550mAh 7.5A Battery Grade A, matching voltage, resistance and capacity. Specifications: Manufacturer EVE Model ICR18650-26V Size 18650 Positive Terminal Flat Top Nominal Capacity 2550mAh Continuous Discharge Rating (max) 7.5A Nominal Voltage 3.60V Maximum Voltage 4.20V Discharge cut-off Voltage 2.50V Protected No Rechargeable Yes Approx. Dimensions 18.3mm x 65.05mm Approx. Weight 48g Max Country of Origin China Associated Names Data Specification Sheet EVE 26V data sheet WARNING: The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. No express or implied guarantee of compatibility with any device can be made. Charge only with a smart charger designed for this specific type of lithium ion battery. Do not mix and match old and new, used and unused batteries. DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE MISUSING OR MISHANDLING LITHIUM ION BATTERIES CAN POSE A SERIOUS RISK OF PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED ONLY USE WITH PROPER CIRCUITRY IN A PROTECTED BATTERY PACK ONLY USE WITHIN MANUFACTURER LISTED SPECIFICATIONS DO NOT STORE LOOSE BATTERY IN A POCKET, PURSE ETC. - ALWAYS USE A PROTECTIVE CASE OR BOX KEEP AWAY from metal objects to prevent short circuiting DO NOT short circuit DO NOT use if wrapper or insulator is damaged or torn DO NOT use if damaged in any way DO NOT overcharge or over-discharge DO NOT modify, disassemble, puncture, cut, crush, or incinerate DO NOT expose to liquids or high temperatures DO NOT solder, spot weld only User must be familiar with handling lithium ion batteries before purchase Usage of batteries is AT YOUR OWN RISK ALWAYS charge in or on a fire-proof surface and never leave charging batteries unattended RESELLERS MUST FORWARD ALL WARNINGS TO ALL CUSTOMERS FOR THEIR REFERENCE AND SAFETY

USD 1.95

Molicel 21700 P42A 4200mAh 45A Battery

Introducing the Molicel 21700 P42A 4200mAh 45A Battery, the ultimate all-around cell in the 21700 form factor size. With a minimum capacity of 4,000mAh and a typical capacity of 4,200mAh, this battery offers exceptional power and endurance. Its maximum continuous discharge rating of 45 Amps ensures that it can handle even the most demanding devices without compromising performance. The Molicel 21700 P42A stands out among other batteries with its remarkable ability to deliver both high capacity and high discharge/drain ability. Whether you need long-lasting power or intense bursts of energy, this battery is designed to keep up with your needs. Unlock the true potential of your devices with this miraculous cell. Molicel Ultra-High Power Cell Series High Discharge current Exceptional cycle life Low temperature operation down to -40°C High thermal stability, high reliability Very low impedance Fast Charge Specifications: Manufacturer Molicel Model P42A Size 21700 Positive Terminal Flat Top Nominal Capacity 4200mAh Continuous Discharge Rating (max) 45A Nominal Voltage 3.6V Maximum Voltage 4.2V Discharge Cut-off Voltage 2.5V Protected No Rechargeable Yes Approx. Dimensions 21.40mm x 70.00mm Approx. Weight 70g (Max) Country of Origin Canada or Taiwan Associated Names INR-21700-P42A Data Specification Sheet Molicel P42A Datasheet WARNING: The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. No express or implied guarantee of compatibility with any device can be made. Charge only with a smart charger designed for this specific type of lithium ion battery. Do not mix and match old and new, used and unused batteries. DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE MISUSING OR MISHANDLING LITHIUM ION BATTERIES CAN POSE A SERIOUS RISK OF PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED ONLY USE WITH PROPER CIRCUITRY IN A PROTECTED BATTERY PACK ONLY USE WITHIN MANUFACTURER LISTED SPECIFICATIONS DO NOT STORE LOOSE BATTERY IN A POCKET, PURSE ETC. - ALWAYS USE A PROTECTIVE CASE OR BOX KEEP AWAY from metal objects to prevent short circuiting DO NOT short circuit DO NOT use if wrapper or insulator is damaged or torn DO NOT use if damaged in any way DO NOT overcharge or over-discharge DO NOT modify, disassemble, puncture, cut, crush, or incinerate DO NOT expose to liquids or high temperatures DO NOT solder, spot weld only User must be familiar with handling lithium ion batteries before purchase Usage of batteries is AT YOUR OWN RISK ALWAYS charge in or on a fire-proof surface and never leave charging batteries unattended RESELLERS MUST FORWARD ALL WARNINGS TO ALL CUSTOMERS FOR THEIR REFERENCE AND SAFETY

USD 3.50

10% off

660 uses

low

worked 12 months ago

10% Off Select Items at 18650 Battery Store

10% off

508 uses

low

worked over 1 year ago

10% Off Storewide (Automatically Applied) at 18650 Battery Store

2% off

1233 uses

low

worked about 2 years ago

2% Off Storewide at 18650 Battery Store

5% off

3068 uses

low

worked almost 3 years ago

5% Off Storewide at 18650 Battery Store

Sustainability Score

62%

While the company provides battery recycling information and partners with certified recycling facilities, their overall transparency regarding environmental practices and supply chain management is limited. They lack clear public commitments to sustainability goals or detailed reporting on their environmental impact. Their packaging shows some consideration for waste reduction, but there's room for improvement in their corporate sustainability initiatives and worker welfare programs.

About 18650 Battery Store

4.0 (3)

FAQs

: The store usually runs major sales during Black Friday, Cyber Monday, and major US holidays. They also offer periodic flash sales throughout the year, typically announced through their newsletter.
: Yes, bulk pricing is available for orders of 50+ batteries. Corporate accounts can receive additional discounts by contacting their sales team directly.
: The best deals are typically found during holiday seasons, particularly November-December. Signing up for their newsletter gives early access to sales and exclusive discount codes.
: Yes, they offer price matching on identical items from authorized US dealers, excluding auction sites and unauthorized sellers.
: In the past month, 18650 Battery Store has launched 6 new promo coupons for shopper discounts. This indicates that 18650 Battery Store provides regular opportunities for customers to save money on their purchases.
: On average, 18650 Battery Store provides 3 discount coupons each month. Based on historical data, the average time between 18650 Battery Store coupon releases every 10 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking 18650 Battery Store website regularly, subscribing to email newsletters, and following them on social media.
: 18650 Battery Store is offering 2 working store-wide codes, however they are also offering 17 additional discount codes with a best discount of 2% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as 18650 Battery Store. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest 18650 Battery Store discount codes.

Curated by

Aleksa P.

Deal Curator

Last updated September 2025

Aleksa is a deal finder from the tech-savvy city of Austin, Texas. A keen coder by day and a discount guru by night, Aleksa checks back regularly to update you with new deals.

Latest 18650 Battery Store coupon activity

Track real-time 18650 Battery Store coupon activity from our community. See which codes are working right now at 18650 Battery Store, when they were last verified, and any usage restrictions. Our feed helps you quickly find active codes and avoid expired ones.

From the blog

2025-04-29

18650 Battery Store Promo Codes and Coupons September 2025