fmabattery
LED Light Flashlight Camera Rechargeable Li-ion Battery 18500 3.6V 2040mAh by Japan NCR18500A
LED Light Flashlight Camera Rechargeable Li-ion Battery 18500 3.6V 2040mAh by Japan NCR18500A
Couldn't load pickup availability
18500 3.6V 2040mAh Li-ion Rechargeable Battery with Tabs for DIY Battery Pack
Professional-grade 18500 cylindrical lithium-ion rechargeable battery featuring premium Panasonic NCR18500A cells. Available in three tab configurations (Type A, Type B, Type C) specifically designed for DIY battery pack assembly and custom battery combinations. Perfect for flashlights, LED lights, cameras, and custom battery pack projects.
Key Features
- Three Tab Configurations: Type A, Type B, Type C for flexible battery pack assembly
- Panasonic NCR18500A Cells: Premium Japanese cells for superior performance
- DIY Battery Pack Friendly: Pre-welded tabs for easy series/parallel connections
- High Capacity: 2040mAh (minimum 1940mAh)
- 18500 Size: Standard cylindrical format (18mm × 50mm)
- Assembled by FMA: Quality assembly with reliable tab welding
- Long Cycle Life: 500+ charge cycles
Package Contents
- 1× 18500 3.6V 2040mAh Li-ion Battery with tabs (tab type as selected)
Technical Specifications
| Cell Model | Panasonic NCR18500A |
| Size Designation | 18500 |
| Nominal Voltage | 3.6V (3.7V nominal) |
| Typical Capacity | 2040mAh |
| Minimum Capacity | 1940mAh |
| Chemistry | Li-ion (Lithium-Ion) |
| Diameter | 18mm |
| Length | ~50mm (with tabs may vary) |
| Weight | ~66g |
| Charge Voltage | 4.2V |
| Discharge Cut-off | 2.75V |
| Cycle Life | 500+ cycles |
| Tab Options | Type A, Type B, Type C |
| Cell Origin | Japan (Panasonic) |
| Assembly | FMA |
| Condition | Brand New |
Tab Configuration Options for DIY Battery Pack Assembly
| Tab Type | Positive (+) Tab | Negative (-) Tab | Best For |
|---|---|---|---|
| Type A | Top center | Bottom side | Standard series connection, vertical stacking |
| Type B | Top side | Bottom side (opposite) | Side-by-side parallel connection, compact packs |
| Type C | Top side | Bottom side (same side) | Easy soldering, custom configurations |
DIY Battery Pack Assembly Guide
Series Connection (Voltage Addition):
- Connect positive (+) tab of one cell to negative (-) tab of next cell
- 2 cells in series = 7.4V (3.7V + 3.7V)
- 3 cells in series = 11.1V (3.7V + 3.7V + 3.7V)
- Capacity remains the same (2040mAh)
- Best Tab Type: Type A or Type C
Parallel Connection (Capacity Addition):
- Connect all positive (+) tabs together
- Connect all negative (-) tabs together
- 2 cells in parallel = 3.7V, 4080mAh (2040mAh + 2040mAh)
- 3 cells in parallel = 3.7V, 6120mAh (2040mAh + 2040mAh + 2040mAh)
- Voltage remains the same (3.7V)
- Best Tab Type: Type B
Series-Parallel Combination (Voltage + Capacity):
- Example: 2S2P = 2 series groups of 2 parallel cells
- Result: 7.4V, 4080mAh
- Example: 3S2P = 3 series groups of 2 parallel cells
- Result: 11.1V, 4080mAh
- Best Tab Type: Mix of Type A/B/C based on layout
Why Choose FMA Assembly?
FMA specializes in professional battery pack assembly using premium cells. Our tab welding ensures reliable connections for DIY battery pack projects. Each cell is tested and assembled to strict quality standards, perfect for custom battery pack builders and electronics enthusiasts.
Safety Information
⚠️ IMPORTANT SAFETY WARNINGS:
Assembly Safety: Battery pack assembly requires knowledge of electrical safety. If unsure, consult a professional.
BMS Required: Always use a Battery Management System (BMS) for multi-cell packs to prevent overcharge, over-discharge, and short circuits.
Charging: Use only Li-ion compatible chargers with correct voltage settings.
Storage: Store at 40-60% charge (3.7-3.9V) in cool, dry place.
Operation: Do not short-circuit, puncture, crush, or disassemble cells.
Temperature: Charge: 0-45°C, Discharge: -20-60°C, Storage: -20-35°C.
Disposal: Dispose according to local regulations. Do not incinerate or dispose of in regular trash.
Shipping & Transportation Notice
Hazardous Material: This product contains lithium-ion batteries and is classified as dangerous goods for shipping purposes.
Air Transport Restrictions: Due to international air transport regulations, battery shipments may be subject to additional restrictions and longer transit times.
Packaging Compliance: All shipments comply with UN3480 or UN3481 packaging requirements for lithium-ion batteries.
Delivery Time: Battery-containing parcels may experience extended delivery times due to stricter customs inspections and carrier handling procedures.
