UltraFire 18650 3.7V Rechargeable Battery – Red | Pro Tronix

Product Description

The UltraFire 18650 3.7V Rechargeable Lithium-Ion Battery (Red Edition) is an economical, entry-level power source designed for light, low-drain electronic applications such as basic LED flashlights, small laser pointers, desk mini fans, and simple DIY electronic toys. Featuring a distinctive red wrapper and a standard 18650 form factor with a button-top terminal, it provides an accessible power solution for everyday household gadgets and lightweight prototyping.

ℹ️ Honest Technical Note on Capacity & Usage: The “6800mAh” printed on the label is a commercial rating common among budget generic cells. In practical testing, actual real-world capacity for cells in this class ranges between 400mAh and 1200mAh. This cell is NOT intended for high-drain applications, custom battery pack building, power tools, or high-power motor drivers. For spot-welded battery packs, e-bikes, or high-current loads, we strongly recommend choosing high-drain Grade-A true-rated cells (like EVE or Samsung).

Technical & Practical Highlights

• Budget-Friendly Power Solution: Low-cost red cell ideal for basic consumer gadgets and non-critical devices.

• Standard 18650 Button-Top Design: Fits most standard 18650 single-cell holders and flashlight compartments.

• 3.7V Nominal Voltage: Standard operating voltage compatible with standard TP4056 single-cell charger modules and 1S charging docks.

• Ideal for Low-Drain Loads: Best suited for low-current devices drawing under 0.5A to 1A continuous.

🧰 Soldering & Prototyping Essentials (Recommended Bundle)

Completing your low-power electronic project or testing setup? Add these essential bench tools and matching accessories to your order:

1. 1S Lithium Battery Charger Modules (TP4056): Safe 5V Micro-USB / Type-C charging boards designed for 3.7V single-cell lithium batteries: Pro Tronix 1S Charger Collection

2. 18650 Battery Holders & Clips: Single and dual 18650 battery holders with lead wires or PCB pins for easy breadboard connection: Pro Tronix 18650 Battery Holders Collection

3. DC Power Jacks & Sockets: Panel-mount and PCB-mount female DC barrel connectors for enclosure power inputs: Pro Tronix DC Sockets Collection

4. Lithium Battery Protection Boards (BMS): Essential 1S protection circuits to prevent over-discharge and short circuits: Pro Tronix BMS Modules Collection

5. KS-40R 40W Pencil Soldering Iron: Dependable benchtop soldering iron for assembling wire leads and connectors: Pro Tronix KS-40R Soldering Iron

6. Soldering Flux & Paste: Achieves clean, smooth solder joints on battery wires and terminal leads: Pro Tronix Soldering Flux Collection

7. Solderless Breadboard: Prototype testing circuits and voltage regulators quickly without permanent soldering: Pro Tronix Breadboards Collection

8. Jumper Wires & Cables: Connect battery holders, sensors, and modules effortlessly: Pro Tronix Wires & Cables Collection

Technical Specifications

Suitable Applications

• Handheld Flashlights & Torches: Standard single-cell LED flashlights and headlamps.

• Mini USB / Portable Fans: Low-current portable desk fans and cooling gadgets.

• Laser Pointers & Toys: Small electronic toys and red/green laser pointers.

• Simple Prototyping: Basic 3.7V microcontroller breadboard projects using standard 18650 battery clips.

What’s in the Box

• 1 x UltraFire 18650 3.7V Rechargeable Li-ion Battery (Red Edition).

All your electronics components and prototyping accessories are available with fast shipping across Egypt from Pro Tronix!