Orbtronic

14500 Li-ion Button Top Battery AA-size 3.7V Rechargeable Unprotected Cell

MPN:
ORB-14500-AA
Minimum Purchase:
2 units
In Stock:
Order by 3PM EST, Ships Today from Florida US Flag
  • 14500 Li-ion Button Top Battery 3.7V Rechargeable Unprotected AA-size Cell
  • 14500 Li-ion Button Top Battery 3.7V Protective Safety Case Rechargeable Unprotected AA-size Cell
$6.99

Description

🆕 Orbtronic ORB-14500-AA: The High-Capacity 1500mAh Li-ion Unprotected Battery

Finally, a high-performance 14500 Li-ion cell designed to fit where others can't. Many modern devices built for AA-sized Li-ion 3.6V-3.7V batteries have strict tolerances, making standard protected 14500 cells (which are several millimeters longer) too long to fit. The ORB-14500-AA solves this problem by delivering 1500mAh of capacity in a precise, unprotected 50mm AA size / form factor with a button-top terminal.

Key Features & Benefits

  • Exact AA Dimensions (Ø14.0 × 50 mm): Engineered to fit perfectly in devices that require a standard, non-protected AA-sized 14500 cell and cannot accommodate longer protected 14500 batteries.
  • High 1500mAh Capacity: Delivers extended runtime with a genuine 1500mAh (5.55Wh) capacity, providing reliable, long-lasting power for demanding applications.
  • 3A High-Drain Performance: A low internal resistance (≤ 60 mΩ) and 3.0A maximum continuous discharge rate make it ideal for high-performance flashlights and professional tools.
  • Button Top Terminal: Welded button top ensures excellent connectivity in devices designed for standard consumer batteries.
  • Orbtronic Quality Control: Built for robust cycle life (500+ cycles) and consistent performance, meeting the needs of device integrators and enthusiasts.

Ideal Applications

  • High-performance flashlights and EDC lighting that require true AA-sized cells.
  • Medical instruments, metrology tools, and other professional equipment.
  • Custom battery packs where cells are managed by a dedicated protection circuit (BMS).
  • Portable electronics designed specifically for the 3.7V Li-ion 14500 chemistry.

⚙️Technical Specifications

Model ORB-14500-AA
Chemistry Lithium-ion (Li-ion)
Rated Capacity 1500 mAh (Min. 1450 mAh)
Nominal Energy 5.55 Wh
Nominal Voltage 3.6V - 3.7V
Max Continuous Discharge 3.0 A
Positive Terminal Button Top (Welded)
Dimensions 14.0 mm (diameter) × 50 mm (length)
Weight 21.6 g (max)
Cycle Life 500+ cycles (≥75% capacity retention)
Internal Resistance ≤ 60 mΩ
Standard Charge 300-500 mA (CC-CV to 4.20V)
Max Charge Current 1050 mA
Discharge Cut-off Voltage 2.50V (Do not discharge below 2.45V)
Operating Temp (Discharge) -20°C to +60°C
Operating Temp (Charge) 0°C to +45°C

⚠️ WARNING: READ BEFORE USE

Misusing or mishandling unprotected lithium-ion batteries can lead to fire, explosion, and serious injury. You are responsible for your own safety when using these cells.

  • This is an UNPROTECTED cell and must be used in a device with a proper safety protection / BMS.
  • ALWAYS use a charger designed for Li-ion cells (CC-CV, 4.20V max).
  • NEVER short-circuit, reverse polarity, or over-discharge below 2.5V.
  • NEVER charge unattended or on flammable surfaces.
  • DO NOT disassemble, puncture, crush, modify, or expose to heat or liquids.
  • NEVER solder directly onto the cell. Use spot-welding for pack building.
  • If the cell wrapper is damaged, discontinue use immediately.
  • Keep away from children and pets.

Important: For Experienced Users Only

This is an unprotected "bare" Li-ion cell. It does not have an internal safety circuit. It is intended only for experienced users and for installation into devices with an integrated Battery Management System (BMS) or equivalent protection circuit.
Not for use in vape, e-cigarette, or any unprotected consumer device.

Frequently Asked Questions

Can I use this 3.7V battery to replace a standard 1.5V AA battery? +

No. This is a Li-ion rechargeable cell with a voltage of 3.6V-3.7V. You should only use it in devices specifically designed to handle the higher voltage of a 14500 Li-ion battery. Using this cell in a device intended for 1.5V AA batteries will likely destroy the electronics.

Why is this battery's "true AA size" important? Won't any 14500 fit? +

Many 14500 batteries include an added protection circuit, which makes them several millimeters longer than a standard AA battery. This extra length prevents them from fitting in devices with strict tolerances. This Orbtronic cell is unprotected and built to the precise 49mm length of a standard AA, ensuring it fits perfectly where other, longer 14500s will not.

What does "unprotected" mean and is it safe? +

"Unprotected" means this battery cell does not have a built-in electronic circuit to prevent over-charge, over-discharge, or short-circuits. It is safe only when used by experienced individuals in a high-quality device that has its own built-in protection electronics (often called a BMS or LVP). Do not use this cell if you are unfamiliar with Li-ion battery safety protocols.

Do I need a special charger for this battery? +

Yes, absolutely. You must use a quality Li-ion charger specifically designed for 3.7V cells that uses a CC-CV (Constant Current, Constant Voltage) charging algorithm. Never attempt to charge this battery in a standard NiMH or NiCd AA charger, as it can cause damage, fire, or explosion.

What are the signs I need to recharge this unprotected battery? +

In a high-quality flashlight or device, you will notice the light begin to dim significantly as the battery's voltage drops. This is your signal to stop using it and recharge it immediately. You should not allow the cell to discharge below 2.5V. If a device does not have low-voltage protection, it is the user's responsibility to monitor the battery to prevent over-discharge, which can permanently damage the cell.

View AllClose

Related Products

Related Products