16340（RCR123）Batteries

12 products

📖 Click to view full specifications, comparison & safety guide

16340 (RCR123A) Batteries – Compact High-Voltage Cylindrical Cells, The Rechargeable Choice for Tactical & Professional Devices

Welcome to our 16340 (RCR123A) Batteries collection. The 16340 lithium-ion cell (approx. 16mm diameter × 34mm length) is the rechargeable Li-ion version of the standard CR123A primary lithium battery. Sharing virtually identical dimensions with CR123A, it delivers a 3.7V nominal voltage and usable capacities from 500mAh to 900mAh—making it the ideal sustainable alternative to expensive disposable CR123A cells for power-hungry tactical and professional equipment. This collection features NMC, IMR, and LiFePO₄ chemistries, serving a wide range of applications including tactical flashlights, laser sights, night vision devices, rangefinders, digital cameras, medical equipment, and various professional portable instruments.

Core Advantages of 16340 Batteries

Standard CR123A Size – Perfect Compatibility: Approximately 16mm diameter × 34mm length—virtually identical to disposable CR123A batteries. Direct drop-in replacement for most CR123A-powered devices.
Rechargeable – Drastically Reduce Operating Costs: Supports 500–1,000+ charge/discharge cycles. Disposable CR123A batteries are expensive; using rechargeable 16340s can save over 90% on battery costs while reducing battery waste.
High Voltage Platform: NMC/IMR versions deliver a nominal 3.7V (full charge 4.2V)—approximately 1.2× the voltage of disposable CR123A (3.0V). Some devices may require voltage compatibility verification.
High Discharge Capability: IMR/INR high-drain models support 2A–5A continuous discharge with pulse currents up to 8A—ideal for tactical flashlight turbo modes and laser devices with high instantaneous power demands.
Flexible Chemistry Options: Available in high-energy NMC (3.7V), high-drain IMR (3.7V), and inherently safe LiFePO₄ (3.2V) formulations to meet diverse voltage, power, and safety requirements.
Low Self-Discharge: Monthly self-discharge as low as 3% ensures readiness even after extended storage—perfect for intermittently used tactical and emergency equipment.

16340 vs. CR123A (Primary) vs. 18350 – Key Comparison

Parameter	16340 (RCR123A)	CR123A Primary Lithium	18350
Dimensions	~16mm × ~34mm	~16mm × ~34mm	~18mm × ~35mm
Nominal Voltage	3.2V (LiFePO₄) / 3.7V (NMC/IMR)	3.0V	3.2V / 3.7V
Full Charge Voltage	3.65V / 4.2V	~3.2V (fresh)	3.65V / 4.2V
Typical Capacity	500mAh – 900mAh	1400mAh – 1550mAh	700mAh – 1200mAh
Energy (Wh)	1.6Wh – 3.3Wh	4.2Wh – 4.7Wh	2.2Wh – 4.4Wh
Rechargeable	✅ Yes	❌ No	✅ Yes
High-Drain Discharge	2A – 5A (high-drain models)	1A – 2A	10A – 15A
Key Strengths	Rechargeable, low operating cost, high-drain options	High capacity, stable voltage, extremely long shelf life	Larger diameter, higher capacity & power
Typical Applications	Tactical lights, laser sights, night vision	Premium tactical lights, cameras, instruments	Mini flashlights, compact vapes, headlamps

Popular 16340 (RCR123A) Cell Models – Quick Reference

Model	Brand/Source	Chemistry	Nominal Capacity	Continuous Discharge	Dimensions (approx.)	Positioning
INR16340 800mAh	Generic	NMC	800mAh	2A–3A	16×34mm	High-capacity NMC; top choice for flashlights & digital devices
IMR16340 700mAh	Generic	IMR	700mAh	3A–5A	16×34mm	High-drain IMR; preferred for tactical flashlight turbo modes
ICR16340 900mAh	Generic	LiCoO₂	900mAh	1A–1.5A	16×34mm	Ultra-high capacity; best for low-power long-runtime devices
IFR16340 500mAh	Generic	LiFePO₄	500mAh	1A–2A	16×34mm	LiFePO₄; high safety / long cycle life / 3.2V compatible
Vapcell INR16340 800mAh	Vapcell	NMC	800mAh	3A	16×34mm	High-performance NMC; preferred for bright flashlights
Efest IMR16340 700mAh	Efest	IMR	700mAh	4A–5A	16×34mm	High-drain; tactical flashlights & vape compatible
Keeppower Protected 16340	Keeppower	NMC + PCB	700–800mAh	2A–3A	16×35–36mm	Protected; consumer safety first choice

Typical Specifications Range (16340)

Parameter	Typical Range
Nominal Voltage	3.2V (LiFePO₄) / 3.6V–3.7V (NMC/IMR)
Full Charge Voltage	3.65V (LiFePO₄) / 4.2V (NMC/IMR)
Capacity Range	500mAh – 900mAh
Continuous Discharge Current	1A – 5A (model dependent)
Internal Resistance	50mΩ – 120mΩ
Cycle Life	500 – 1500+ cycles (chemistry dependent)
Operating Temperature	Charge: 0°C~45°C / Discharge: -20°C~60°C
Dimensions	Diameter 15.5mm–16.5mm × Length 33.5mm–36.0mm (protected slightly longer)
Weight	Approx. 16g – 20g

Typical Applications

Application	Recommended Type	Suggested Models
Tactical flashlights / high-output searchlights	IMR / INR High-Drain	Efest IMR16340, Vapcell INR16340
Laser sights / laser rangefinders	IMR High-Drain	Efest IMR16340
Night vision / thermal imaging	NMC / Protected	Keeppower Protected, INR16340
Digital cameras / flash units	NMC High-Capacity	ICR16340 900mAh
Medical devices / portable monitors	LiFePO₄ / Protected	IFR16340 500mAh, Keeppower Protected
Emergency lighting / security systems	LiFePO₄	IFR16340 500mAh
Vaping / mini box mods	IMR High-Drain	Efest IMR16340
Wireless sensors / IoT terminals	LiFePO₄	IFR16340 500mAh

How to Choose the Right 16340 Battery?

Your Requirement	Recommended Type	Suggested Model
I need maximum capacity for low-power long-runtime devices	NMC/ICR High-Capacity	ICR16340 900mAh
I need high current output for tactical flashlight turbo or lasers	IMR High-Drain	Efest IMR16340
I want built-in protection for worry-free use	Protected 16340	Keeppower Protected 16340
I need 3.2V voltage or ultimate safety/long cycle (medical/emergency)	LiFePO₄	IFR16340 500mAh
I need bulk quantities or custom packs	Contact our sales team	—

⚠️ 16340 Battery Safety Guidelines

Voltage Compatibility – Special Attention Required: 16340 nominal voltage is 3.7V (full charge 4.2V), whereas disposable CR123A nominal voltage is 3.0V. Inserting a 16340 into voltage-sensitive devices may cause overvoltage damage or malfunction. Always consult the device manual to confirm compatibility with 3.7V RCR123A rechargeable batteries. Some devices are dual-voltage compatible; others accept 3.0V only.
Do Not Mix Chemistries: 3.2V LiFePO₄ and 3.7V NMC/IMR cells cannot be mixed or charged with the same charger.
Use a Dedicated Li-ion Charger: 16340 cells require a Li-ion-specific charger. Do not use NiMH/NiCd chargers. Select a charger that explicitly supports 16340.
Avoid Over-Discharge: Stop discharging when voltage drops below 2.5V–2.8V (NMC/IMR) or 2.0V–2.5V (LiFePO₄). Recharge promptly to prevent permanent capacity loss.
Avoid Short Circuits & Overheating: Do not short the terminals. Keep away from heat, moisture, and metal objects.
Discontinue if Damaged: Stop using cells with torn wraps, dents, or leakage. Recycle responsibly.

Why Choose Our 16340 Batteries?

Genuine Grade-A Cells: Sourced from Vapcell, Efest, Keeppower, and other reputable manufacturers. 100% authentic—no recycled or counterfeit cells.
Fully Tested & Matched: Every batch undergoes capacity grading, IR testing, and voltage sorting. Industrial-grade matching services available.
Complete Portfolio: Covers NMC high-capacity, IMR high-drain, protected, and LiFePO₄ series—one-stop for all CR123A-sized Li-ion needs.
Flexible Purchasing: Single-cell retail, multi-pack discounts, tiered bulk pricing, and custom pack assembly.
Certified & Documented: UN38.3, MSDS, CE, RoHS documentation provided for seamless international shipping.
Expert Technical Support: Guidance on cell selection, pack design, BMS integration, and after-sales service.

👇👇👇 Browse the product list below and filter by capacity or chemistry to find the perfect 16340 (RCR123A) cell for your application. For volume quotes or custom pack solutions, please contact our engineering team.

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