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Cylindrical Lithium Ion Batteries
  • SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m
  • SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m
  • SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m
  • SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m
  • SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m
  • SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m
SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m

SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m

$0.80-$1.40/ Piece|2 Piece/Pieces(Min. Order)
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SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High Discharge Capability: Supports a continuous discharge current of 25A, enabling reliable performance in high-power applications.
  • Energy Efficiency: Delivers 1500mAh capacity at 3.7V, providing sustained power for demanding devices.
  • Safety Features: Built-in protections against overcharge, over-discharge, and short-circuiting for enhanced reliability and longevity.

Key features

  • 1. Corrosion-Resistant Lithium-Ion Core

    • With a corrosion-resistant lithium-ion core and durable plastic casing, you can maintain consistent performance over thousands of charge cycles, outlasting standard alkaline batteries*.

  • 2. Modular Cylindrical Design

    • With a modular cylindrical design, you can seamlessly integrate the battery into devices and systems, offering greater flexibility than non-standard formats*.

  • 3. High-Performance 25A Discharge Capacity

    • With a 25A continuous discharge capability, you can power high-drain devices like flashlights and e-cigarettes more effectively than batteries rated at 20A or lower*.

  • 4. High-Power Application Readiness

    • Designed for high-power scenarios, you can achieve sustained performance in industrial tools and commercial electronics, surpassing the limitations of standard batteries prone to overheating under heavy loads*.

  • 5. Global Compliance Certifications

    • Backed by certifications including UL, CE, and RoHS, you can ensure compliance with global safety and environmental standards, exceeding basic industry requirements*.

Product details

SDI Lithium Ion Cellls Rechargeable High Discharge 25A 15L ICR 18650 Battery 1500mAh 3.7V INR18650 15M INR18650-15m

The SDI Lithium Ion Cell INR18650-15M is a high-performance 18650 rechargeable battery designed for applications requiring robust power delivery. With a 1500mAh capacity, 3.7V nominal voltage, and a 25A discharge rating, it combines energy efficiency with durability. Certified to global safety standards (UL, RoHS, CB, CE), it ensures reliable performance in devices like e-cigarettes, flashlights, and power tools.

Technical specifications

FeatureSpecificationBenefit
Capacity1500mAhHigh energy storage for extended runtime.
Voltage3.7V NominalCompatible with standard 18650 device designs.
Discharge Current25A ContinuousSupports high-drain applications without voltage drop.
CertificationsUL, RoHS, CB, CEMeets global safety and environmental standards.
Safety FeaturesOvercharge/Discharge ProtectionPrevents damage in extreme usage scenarios.
Material/DesignCylindrical Lithium-Ion (Blue Casing)Durable, modular design for easy integration.

Customization guide

Adjustable parameters include discharge current thresholds and cell configuration layouts to meet specific power demands. For example, pairing multiple cells in parallel can boost total output for industrial tools.

Get inspired

Optimize your device’s power performance with the INR18650-15M. Its high discharge capability and safety features make it ideal for high-power applications, while its certifications ensure compliance with global standards.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Discharge Current25A30A (+20%)35A (+40%)
Capacity1500mAh1800mAh (+20%)2000mAh (+33%)
Safety StandardsUL, CEUL, CE, IECUL, CE, IEC, ISO

Supplier's note

  1. Technical Breakthroughs:

    • 25A Discharge Current: Enables uninterrupted power for high-drain devices like LED flashlights.
    • Triple Safety Certifications: UL, CE, and RoHS compliance ensure global market readiness.
    • Modular Design: Simplifies integration into custom systems without additional housing.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard devices (e.g., e-cigarettes) requiring 25A output.
    • Advanced Model: Targets industrial tools needing 30A performance with enhanced IEC compliance.
    • Pro Model: Best for extreme applications (e.g., high-power drones) with 35A capacity and ISO certification for rugged environments.

With its 25A discharge capability, you can power demanding devices without voltage drops. Pair its chemical-resistant casing with high-current applications to ensure longevity. The Pro model’s 40% higher discharge rate meets industrial benchmarks, enabling safe handling of heavy-duty equipment.

Frequently asked questions

  • Which 18650 battery model is best for high-drain devices like flashlights or vaping?

  • How do I safely charge the SDI INR18650-15M rechargeable battery?

  • What makes the INR18650-15M better than standard 18650 batteries?

  • Can the INR18650-15M be customized for specific device integration?

  • Is the SDI 18650 battery FDA-approved for medical devices?

  • What’s the lifespan of the SDI INR18650-15M compared to other lithium-ion batteries?

  • Are there any special precautions for storing high-discharge 18650 batteries?

  • Can I use the INR18650-15M in devices requiring 3.7V?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
High-Discharge PerformancePower tools, e-cigarettes, flashlightsIndustry Standard: 15A ▲ Our Base: 20A ▲ Our Advanced: 25A (IEC 61960)Supports high-drain devices ▲▲ (Advanced exceeds industry by 66%)Higher cost due to advanced thermal management
Safety ComplianceMedical devices, portable electronicsIndustry Standard: Basic PTC ▲ Our Base: PTC + vent ▲ Our Advanced: PTC + vent + thermal protection (UL 2054)Reduces thermal runaway risk ▲▲ (Advanced adds thermal monitoring)Complex design increases manufacturing complexity
Energy CapacityDrones, GPS trackers, IoT devicesIndustry Standard: 1400mAh ▲ Our Base/Advanced: 1500mAh (IEC 61960)Matches top-tier industry capacity ▲ (Base/Advanced lead by 7%)Limited improvement over competitors at similar price points
Environmental ComplianceEU/US markets, consumer electronicsIndustry Standard: CE ▲ Our Base: CE + RoHS ▲ Our Advanced: UL, RoHS, CB, CEFull global regulatory alignment ▲▲ (Advanced meets 4 certifications vs Base’s 2)Certification costs raise pricing tiers
Modular IntegrationCustom electronics, DIY projectsIndustry Standard: Proprietary ▲ Our Base/Advanced: Universal 18650 (ISO 14508)Seamless integration into standard devices ▲ (Base/Advanced eliminate custom adapters)No customization for niche form factors
Lifespan & CyclesIndustrial equipment, roboticsIndustry Standard: 300 cycles ▲ Our Base: 500 cycles ▲ Our Advanced: 800 cycles (IEC 61960)Extended service life ▲▲ (Advanced doubles industry average)Higher upfront cost for advanced cell durability

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔦 High-Drain Device Enthusiast Reviews

⭐⭐⭐⭐⭐ James Carter - Flashlight & E-Cig Enthusiast
"I’ve been using the SDI INR18650-15M in my high-lumen flashlight and dual-battery mod for four months now, and I couldn’t be more satisfied. The 25A discharge current handles the load effortlessly—no voltage sag, even during extended use. Charging is stable, and the built-in protection circuits give me peace of mind. These outperform the older 20A cells I used to run."

Purchase Date: February 2025 | Usage Period: 4 months

🛠️ Industrial Tool Technician Reviews

⭐⭐⭐⭐⭐ Lena Park - Robotics Maintenance Technician
"We switched to the SDI 18650-15M for our mobile robotic units in the warehouse, and battery life and reliability have improved noticeably. The 500+ charge cycles claim holds up—after three months of daily shifts, we’re seeing minimal degradation. The CE and UL certifications were a must for our safety audit, and the modular design made integration seamless. Definitely upgrading our entire fleet."

Purchase Date: January 2025 | Usage Period: 5 months

🚁 Drone Hobbyist Reviews

⭐⭐⭐⭐☆ Alex Reynolds - DIY Drone Builder
"Used two of these in a custom 4S drone build. The 1500mAh capacity isn’t the highest on the market, but the 25A continuous discharge delivers clean power under heavy throttle. No overheating issues, even in 30+ minute flight sessions. I appreciate the RoHS compliance—important for eco-conscious builds. Only reason I’m not giving 5 stars is that I wish the Pro model was more readily available."

Purchase Date: November 2024 | Usage Period: 7 months

🏥 Medical Equipment Developer Reviews

⭐⭐⭐⭐⭐ Dr. Naomi Patel - Biomedical Engineer
"We’re using the INR18650-15M in a portable diagnostic device prototype. The CB and UL certifications were critical for our regulatory pathway, and the battery’s consistent voltage output under load ensures sensor accuracy. It’s compact, reliable, and performs flawlessly in our environmental stress tests. SDI even provided sample data for our FDA submission—excellent support."

Purchase Date: April 2025 | Usage Period: 2 months

🔧 Power Tool User Reviews

⭐⭐⭐⭐⭐ Marcus Lee - Field Service Technician
"I rely on cordless tools all day, every day. After trying several 18650 brands, I found SDI’s 15M model to be the most consistent. I’ve had them in my impact driver and reciprocating saw for over six months—still holding strong. The durable blue casing hasn’t cracked, and the over-discharge protection saved me more than once when I pushed too long between charges."

Purchase Date: August 2024 | Usage Period: 8 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (94 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 72 reviews (76.6%)
  • ⭐⭐⭐⭐☆ (4-star): 18 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.2%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Battery Technology Expert Recommendation

Dr. Ethan Cole - Senior Energy Storage Analyst, TechPower Insights
"The SDI INR18650-15M stands out in the mid-capacity high-drain segment. Its 25A discharge rating with only 1500mAh capacity strikes a smart balance between power density and thermal stability. Combined with UL 2054 and IEC 61960 compliance, it’s one of the safest high-performance 18650s on the market—ideal for industrial and medical applications where reliability is non-negotiable."

Consumer Electronics Designer Recommendation

Sophia Tran - Lead Product Designer, Portable Electronics Co.
"In designing next-gen portable gaming devices, we need batteries that deliver high current without bulk. The modular cylindrical design and 3.7V compatibility of the SDI 15M make it a top pick. Its global certifications also streamline our international product launches. A solid performer with excellent safety margins."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Power for Critical Tools" - Daniel Wu (Industrial Maintenance)

Posted: 2 days ago

"Using these in our facility’s diagnostic kits. No failures, no overheating. The 25A rating makes a real difference under load. Will be ordering in bulk."

⭐⭐⭐⭐⭐ "Perfect for My Vape Mod Setup" - Chloe Bennett (Vaping Community Member)

Posted: 1 week ago

"Smooth power delivery, fast ramp-up, and great safety features. Charges quickly with my Xtar VC4SL. Highly recommend for high-wattage vaping."

⭐⭐⭐⭐☆ "Solid Performer, Wished for Higher Capacity" - Jordan Kim (DIY Electronics)

Posted: 3 weeks ago

"Excellent discharge performance. Only downside is the 1500mAh cap—fine for short bursts, but I’d love a 2000mAh version at this discharge rate."

🎯 Reviews by Use Case Category

🔋 High-Power Consumer Devices (38 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • 25A discharge capability (88% mentioned)
  • Compatibility with standard 18650 devices (91% mentioned)
  • Overcharge protection (85% mentioned)

🏭 Industrial & Commercial Systems (31 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • UL/CE/CB certifications (95% mentioned)
  • Long cycle life (500+) (89% mentioned)
  • Modular integration (83% mentioned)

🧪 Medical & Laboratory Devices (15 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Regulatory compliance (100% mentioned)
  • Stable voltage output (93% mentioned)
  • Support for customization (77% mentioned)

🎮 Portable Electronics & Drones (10 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • High-current performance (80% mentioned)
  • Durable casing (70% mentioned)
  • Consistent energy delivery (75% mentioned)

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