Product Description:
Upgrade your high-performance flashlights and tactical gear with the ultimate power solution – the Keeppower 18500 3.7V 2600mAh Protected Li-ion Battery (1-Pack). Featuring an incredibly high capacity of 2600mAh and a built-in Protection Circuit Board (PCB), this premium battery delivers maximum runtime and absolute safety for your most demanding devices.
The built-in PCB ensures total protection against over-charging, over-discharging, and short circuits. It also supports a reliable 2C discharge rate, providing stable power for high-lumen tactical flashlights, scopes, and portable optics.
CRITICAL SIZE & APPLICATION WARNING:
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Size Alert: This is a Protected 18500 battery. Due to the built-in Protection Circuit Board (PCB), its actual physical dimensions are 18.5mm (Diameter) x 53mm (Height). This is 3mm longer and 0.5mm thicker than standard unprotected 18500 batteries (50mm x 18mm). Please measure your device's internal battery compartment carefully BEFORE ordering to ensure it can accommodate the 53mm length and 18.5mm diameter.
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Application Note: This battery is designed for Flashlights, Optics, and Tactical Gear. It is NOT recommended for electric hair clippers, trimmers, or small home appliances, as the specific length constraints of those devices almost always prevent a proper fit.
Key Features:
Massive 2600mAh High Capacity: Delivers exceptional runtime, allowing your tactical lights and devices to perform longer than ever before.
Built-in PCB Protection: Integrated smart circuit prevents over-charging, over-discharging, and short circuits, ensuring complete safety during use.
Reliable 2C Discharge Rate: Provides stable power output suitable for high-performance flashlights and electronic devices.
Genuine Keeppower Quality (P1850C4): A trusted brand with reliable ICR18500 cells and rigorous manufacturing standards.
Single Battery Replacement: Perfect for replacing a single worn-out battery in your tactical gear without having to buy a whole pair.
Parameters:
Applications:
High-Lumen Tactical Flashlights & EDC Torches
Night Vision Scopes, Rangefinders & Laser Sights
Outdoor Emergency & Searchlights
Portable Electronics requiring high capacity and protection
High-Drain DIY Electronics
FAQ:
Q: Why is this battery 53mm tall instead of the standard 50mm?
A: This is a Protected battery. The extra 3mm comes from the built-in Protection Circuit Board (PCB) integrated into the cell, which provides crucial safety against overcharging and short circuits.
Q: Will this battery fit in my hair clipper?
A: Probably NOT. Due to the 53mm length and 18.5mm diameter, this battery is specifically designed for flashlights and tactical gear. We generally do not recommend it for hair clippers or small appliances, as they usually have very tight internal compartments.
Q: What is the advantage of a protected battery over a bare cell?
A: A protected battery has an integrated smart PCB that automatically cuts off the power if it detects over-charging, over-discharging, or a short circuit. This provides an extra layer of safety, especially in devices that lack their own protection circuits.
Q: Can I charge this battery with a standard Li-ion charger?
A: Yes. You can use a standard 3.7V/4.2V Li-ion charger. However, because it is a protected battery, it will have a slightly longer length, so make sure your charger's slot can accommodate 53mm.
Q: How long does it take to fully charge this battery?
A: With a standard 500mA smart charger, it will take approximately 5 to 6 hours to fully charge a 2600mAh battery. Using a 1A charger will reduce this time to about 3 hours.
