Spare 14500 Cell Battery
14500 Rechargeable Lithium-Ion Battery – 3.7V 800mAh
Compact Power for Mission-Ready Lights
Built for High-Performance Flashlights. Trusted in the Field.
***Lithium batteries MUST ship via ground. No Exceptions.***
Designed for the Demands of EDC and Survival Lighting
The 14500 3.7V 800mAh lithium-ion battery delivers reliable, rechargeable power to high-output lights built for serious use. Engineered for devices like the Maratac® Compact Tri Flood, Mini LEP Cosmos, Reylight AA/14500 series, and other tactical compact flashlights, this cell provides consistent energy and extended runtime where it matters.
This is not a replacement for AA alkaline cells—it’s a higher voltage, higher performance power source designed specifically for compatible platforms.
Why Choose This Battery
-
High Output Voltage – 3.7V lithium power delivers enhanced brightness and runtime
-
Compact Power Form – AA-sized 14500 format fits a wide range of advanced lighting tools
-
Reliable Capacity – 800mAh provides extended use without bulk
-
Rechargeable Design – Lower long-term cost and reduced environmental waste
-
Pro-Tier Compatibility – Built for Maratac®, Reylight, LEP models, and similar high-drain devices
Specifications
-
Model: ICR 14500 (3.7V Lithium-Ion)
-
Capacity: 800mAh
-
Dimensions: 1.95" x 0.56" (AA-sized)
-
Charging Output: 4.2V @ up to 1A max
-
Chemistry: Lithium-Ion (Li-Ion)
-
Charging Type: Use a compatible smart charger
-
Packaging: Ships via ground only (DOT/FAA compliance)
Critical Usage Notice
This is not a standard AA battery. Do not use in devices rated for 1.5V only. Using this cell in non-compatible devices may damage electronics or cause unsafe conditions.
Always verify that your flashlight or device is rated for 14500 lithium-ion use before installing.
Safe Use Guidelines
-
Only use in devices specifically rated for 3.7V 14500 cells
-
Charge only with verified Li-ion 14500 chargers
-
Store in a case when not in use—never loose in pockets or bags
-
Do not use if wrap is torn or damaged
-
Never exceed 4.2V or discharge below 3.0V
-
Do not leave charging unattended
When your lighting tools are part of your survival plan, don’t cut corners on power.
The 14500 3.7V battery is purpose-built for tactical lights, field kits, and serious EDC.
Add it to your loadout and keep your gear powered with confidence.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Spare 14500 Cell Battery
Spare 14500 Cell Battery
14500 Rechargeable Lithium-Ion Battery – 3.7V 800mAh
Compact Power for Mission-Ready Lights
Built for High-Performance Flashlights. Trusted in the Field.
***Lithium batteries MUST ship via ground. No Exceptions.***
Designed for the Demands of EDC and Survival Lighting
The 14500 3.7V 800mAh lithium-ion battery delivers reliable, rechargeable power to high-output lights built for serious use. Engineered for devices like the Maratac® Compact Tri Flood, Mini LEP Cosmos, Reylight AA/14500 series, and other tactical compact flashlights, this cell provides consistent energy and extended runtime where it matters.
This is not a replacement for AA alkaline cells—it’s a higher voltage, higher performance power source designed specifically for compatible platforms.
Why Choose This Battery
-
High Output Voltage – 3.7V lithium power delivers enhanced brightness and runtime
-
Compact Power Form – AA-sized 14500 format fits a wide range of advanced lighting tools
-
Reliable Capacity – 800mAh provides extended use without bulk
-
Rechargeable Design – Lower long-term cost and reduced environmental waste
-
Pro-Tier Compatibility – Built for Maratac®, Reylight, LEP models, and similar high-drain devices
Specifications
-
Model: ICR 14500 (3.7V Lithium-Ion)
-
Capacity: 800mAh
-
Dimensions: 1.95" x 0.56" (AA-sized)
-
Charging Output: 4.2V @ up to 1A max
-
Chemistry: Lithium-Ion (Li-Ion)
-
Charging Type: Use a compatible smart charger
-
Packaging: Ships via ground only (DOT/FAA compliance)
Critical Usage Notice
This is not a standard AA battery. Do not use in devices rated for 1.5V only. Using this cell in non-compatible devices may damage electronics or cause unsafe conditions.
Always verify that your flashlight or device is rated for 14500 lithium-ion use before installing.
Safe Use Guidelines
-
Only use in devices specifically rated for 3.7V 14500 cells
-
Charge only with verified Li-ion 14500 chargers
-
Store in a case when not in use—never loose in pockets or bags
-
Do not use if wrap is torn or damaged
-
Never exceed 4.2V or discharge below 3.0V
-
Do not leave charging unattended
When your lighting tools are part of your survival plan, don’t cut corners on power.
The 14500 3.7V battery is purpose-built for tactical lights, field kits, and serious EDC.
Add it to your loadout and keep your gear powered with confidence.
Original: $6.75
-70%$6.75
$2.02Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
14500 Rechargeable Lithium-Ion Battery – 3.7V 800mAh
Compact Power for Mission-Ready Lights
Built for High-Performance Flashlights. Trusted in the Field.
***Lithium batteries MUST ship via ground. No Exceptions.***
Designed for the Demands of EDC and Survival Lighting
The 14500 3.7V 800mAh lithium-ion battery delivers reliable, rechargeable power to high-output lights built for serious use. Engineered for devices like the Maratac® Compact Tri Flood, Mini LEP Cosmos, Reylight AA/14500 series, and other tactical compact flashlights, this cell provides consistent energy and extended runtime where it matters.
This is not a replacement for AA alkaline cells—it’s a higher voltage, higher performance power source designed specifically for compatible platforms.
Why Choose This Battery
-
High Output Voltage – 3.7V lithium power delivers enhanced brightness and runtime
-
Compact Power Form – AA-sized 14500 format fits a wide range of advanced lighting tools
-
Reliable Capacity – 800mAh provides extended use without bulk
-
Rechargeable Design – Lower long-term cost and reduced environmental waste
-
Pro-Tier Compatibility – Built for Maratac®, Reylight, LEP models, and similar high-drain devices
Specifications
-
Model: ICR 14500 (3.7V Lithium-Ion)
-
Capacity: 800mAh
-
Dimensions: 1.95" x 0.56" (AA-sized)
-
Charging Output: 4.2V @ up to 1A max
-
Chemistry: Lithium-Ion (Li-Ion)
-
Charging Type: Use a compatible smart charger
-
Packaging: Ships via ground only (DOT/FAA compliance)
Critical Usage Notice
This is not a standard AA battery. Do not use in devices rated for 1.5V only. Using this cell in non-compatible devices may damage electronics or cause unsafe conditions.
Always verify that your flashlight or device is rated for 14500 lithium-ion use before installing.
Safe Use Guidelines
-
Only use in devices specifically rated for 3.7V 14500 cells
-
Charge only with verified Li-ion 14500 chargers
-
Store in a case when not in use—never loose in pockets or bags
-
Do not use if wrap is torn or damaged
-
Never exceed 4.2V or discharge below 3.0V
-
Do not leave charging unattended
When your lighting tools are part of your survival plan, don’t cut corners on power.
The 14500 3.7V battery is purpose-built for tactical lights, field kits, and serious EDC.
Add it to your loadout and keep your gear powered with confidence.








