⚠️ CRITICAL COMPATIBILITY NOTICE

This is a 3.7V lithium-ion cell in AA size (14500 format) - NOT a standard 1.5V alkaline AA replacement.

• ONLY use in devices specifically designed for 3.7V 14500 lithium-ion batteries
• Installing in standard AA devices may cause immediate damage or safety hazards
• Common compatible applications: LED flashlights marked "14500 compatible," solar garden lights, specific electronic devices
• Always verify device specifications require 3.7V lithium chemistry before use

High-Voltage Performance in Compact AA Form Factor. Your high-intensity flashlight or specialized solar application requires the voltage advantage of lithium-ion chemistry in convenient AA dimensions. Our PK Cell ICR14500 delivers authentic 800mAh capacity at 3.7V nominal voltage with verified 300+ cycle performance for demanding applications requiring superior energy density over standard rechargeable formats.

As battery specialists since 2010, we've guided thousands of customers through proper 14500 battery selection and compatibility verification. Our precision-manufactured ICR14500 features genuine 800mAh typical capacity (720mAh minimum guaranteed), 0.5C standard charging rate with 4-hour completion time, and wide operating temperature tolerance (-20°C to 60°C discharge) - engineered for enthusiasts and professionals who understand the critical differences between lithium-ion and traditional AA battery chemistries in specialized equipment applications.

PK Cell ICR14500 800mAh Compatible Applications:

• High-Performance LED Flashlights: Tactical flashlights and EDC (everyday carry) lights specifically designed for 14500 lithium-ion - typically marked "14500/AA compatible" with mode switching based on detected voltage for maximum brightness on lithium-ion
• Solar Garden Lights: Outdoor solar lighting systems designed for rechargeable batteries where 3.7V chemistry integrates with solar charge controllers and LED drivers requiring higher voltage than NiMH provides
• Electronic Devices: Specialized electronics explicitly rated for 14500 lithium-ion including certain laser pointers, electronic cigarettes, and portable measurement instruments where compact size and voltage requirements align
• Battery Pack Applications: Custom battery pack construction where AA form factor combined with 3.7V nominal voltage meets specific design requirements - common in DIY electronics and prototype development
• Photography Equipment: LED video lights and camera accessories marked for 14500 lithium-ion compatibility where sustained brightness and compact dimensions benefit content creators

Applications Where 14500 Li-ion Is NOT Appropriate:

• Standard AA Devices: Remote controls, clocks, toys, audio equipment, cameras designed for alkaline or NiMH AA batteries
• High-Drain Applications: Devices requiring sustained 2A+ discharge (power tools, RC vehicles) - 1200mA maximum continuous discharge insufficient
• Series Configurations: Multiple cell applications requiring exact voltage matching - single voltage tier eliminates series/parallel flexibility of standard AA

Critical Safety Requirements for 14500 Lithium-Ion Cells

• Voltage Compatibility Mandatory: Installation in 1.5V-rated devices causes immediate electronic damage and potential thermal events - the 3.7V nominal (4.2V maximum) exceeds safe operating voltage for standard AA electronics by 150-280%
• Dedicated Li-ion Charger Required: Must use lithium-ion charger with 4.2V ±0.05V termination voltage and CC/CV profile - attempting to charge with NiMH, alkaline, or non-compatible chargers creates overcharge conditions leading to cell venting or rupture
• Polarity Awareness Critical: Unlike alkaline AA, reversed installation in unprotected circuits can cause immediate high-current discharge - always verify positive terminal orientation matches device markings before installation
• Temperature Monitoring: During 1A+ discharge in compact flashlight housings, cell temperature can exceed 45°C within 10-15 minutes - allow cooling periods during extended high-output use to prevent accelerated aging

We document these requirements explicitly because 14500 cells in AA form factor create genuine compatibility risks. Voltage verification before purchase protects both equipment and users from preventable damage scenarios.

Q: "Can I use this 14500 battery in my regular AA flashlight?"
A: Only if your flashlight explicitly states "14500 lithium-ion compatible" in the specifications. Standard AA flashlights are designed for 1.5V alkaline or 1.2V NiMH batteries. Installing a 3.7V lithium-ion cell in a standard AA flashlight will immediately damage the electronics and potentially create safety hazards. We receive weekly calls from customers who've damaged equipment by assuming physical compatibility equals electrical compatibility - it does not.

Q: "Why does this battery have lower mAh than standard AA NiMH batteries?"
A: The 800mAh rating reflects nominal capacity at 3.7V, not 1.2V like NiMH. Energy content (watt-hours) provides better comparison: this 14500 delivers 2.96Wh (800mAh × 3.7V) versus 2.4Wh for a 2000mAh NiMH cell (2000mAh × 1.2V). In compatible devices, the higher voltage actually delivers comparable or superior runtime because LED drivers and electronics operate more efficiently at 3.7V than 1.2V input.

Q: "What charger do I need for 14500 lithium-ion batteries?"
A: You need a dedicated lithium-ion battery charger that supports 14500 format cells with 4.2V charge termination voltage and CC/CV (constant current/constant voltage) charging profile. Popular options include multi-chemistry chargers that detect cell type and adjust charging parameters automatically. Do NOT use NiMH chargers (1.4V termination) or any charger not explicitly rated for 3.7V lithium-ion cells - incorrect charging creates serious safety hazards.

Q: "Why choose High-Tech Battery Solutions for 14500 cells?"
A: As battery specialists since 2010, we've guided thousands of customers through proper 14500 compatibility verification to prevent equipment damage from incorrect battery selection. We understand the confusion created by AA-sized lithium-ion cells requiring 3.7V compatibility. Our technical support team provides pre-purchase compatibility consultation based on actual device specifications, not assumptions. Plus, our cells ship at optimal storage voltage with comprehensive safety documentation for proper handling and charging requirements.