NITECORE P10i i-Generation 21700 Ultra Compact Tactical Flashlight

Features

• Utilizes a Luminus SST-40-W LED with a max output of 1,800 lumens.
• Optical system combined with crystal coating and "Precision Digital Optics Technology" (PDOT).
• Max peak beam intensity of 21,100cd and max throw of 290 meters.
• Highly efficient constant current circuit provides a stable output for up to 50 hours.
• Dual tail switches enable intuitive operations for tactical applications.
• 3 brightness levels and 1 special mode available.
• STROBE READY™ Technology for quick access to STROBE Mode (Patent No.: ZL201320545349.4).
• STROBE Mode uses randomly changing frequencies for stronger dizzying effects.
• Intelligent Li-ion battery charging circuit with a USB-C port.
• NITECORE 21700 Li-ion battery included (NL2140i 4,000mAh).
• Power indicator beside the charging port indicates remaining battery power.
• Power indicator can display the battery voltage (±0.1V).
• Incorporated Advanced Temperature Regulation (ATR) module (Patent No.: ZL201510534543.6).
• Optical lenses with double-sided scratch-resistant coating.
• Constructed from aero-grade aluminum alloy.
• HA III military-grade hard-anodized finish.
• Waterproof and dustproof rating in accordance with IP68 (2 meters submersible).
• Impact resistant to 2 meters.

Specifications

Length: 147mm (5.79")

Head Diameter: 25.4mm (1")

Tube Diameter: 25.4mm (1")

Tail Diameter: 28.5mm (1.12")

Weight: 84g (2.96oz) (without battery)

Accessories

• NITECORE 21700 Rechargeable Li-ion Battery (NL2140i 4,000mAh)
• Tactical Holster NTH10
• Clip
• Lanyard
• Spare O-ring
• CR123 Battery Magazine
• USB-C Charging Cable

Warranty Service

NITECORE® products are warranted for quality. Defective products can be exchanged within 15 days of purchase through a local distributor/dealer. After that, defective/malfunctioning products can be repaired free of charge within 60 months from the date of purchase. A limited warranty applies beyond 60 months, covering labor and maintenance costs but not accessories or replacement parts. The warranty is void if the product is modified, damaged due to improper use (e.g., reversed polarity), or damaged due to battery leakage. For the latest information, contact a local NITECORE® distributor or email service@nitecore.com. SYSMAX Innovations Co., Ltd. reserves the right to interpret and amend this document.

Battery Options

The P10i is compatible with NITECORE 21700 i Series batteries with an output over 8A and CR123/RCR123 batteries.

Note:

• DO NOT attempt to use the P10i to charge CR123/RCR123 batteries.
• The P10i is NOT compatible with conventional 21700/18650 batteries.

Technical Data

Data measured in accordance with the international flashlight testing standard ANSI/PLATO FL 1-2019, using specified batteries under laboratory conditions. Data may vary in real-world use.

Using a 4,000mAh 21700 Li-ion Battery:

Using a 5,000mAh 21700 Li-ion Battery:

Using 2 x CR123 Batteries:

Operating Instructions

Battery Installation

Insert the battery(s) as illustrated and screw to tighten the tail cap. After battery insertion, the power indicator will flash to indicate the battery voltage. Refer to the "Power Indication" section for details.

Warnings:

• Ensure batteries are inserted with the positive end towards the head. The product will not work if incorrectly inserted.
• ⚠️ Possible dangerous radiation! Do not look directly into the light. May be dangerous for your eyes.
• When battery power is low, stop using the product and replace or recharge the battery to prevent damage.
• When storing the product in a backpack or leaving it unused for prolonged periods, remove all batteries to prevent accidental activation or battery leakage.
• DO NOT submerge the light into any liquid when it is hot. This may cause irreparable damage due to pressure differences.

Charging Function

The P10i is equipped with an intelligent charging system. Insert the battery and tighten the tail cap. Use the USB-C cable to connect an external power supply (e.g., a USB adapter or other USB charging devices) to the charging port to begin the charging process.

• During charging, the power indicator will flash slowly.
• When the battery is fully charged, the P10i will cease charging, and the power indicator will become steadily lit.
• Charging time for a 21700 Li-ion battery (4,000mAh) is approx. 3 hours 45 minutes (using a 5V/2A adapter).

Tactical Momentary Illumination

Half press and hold the [Power Button] to turn on the light momentarily. Release to turn it off.

On / Off

• On: When the light is off, press the [Power Button] until a click is heard to turn it on and access the HIGH Level.
• Off: When the light is on, press the [Power Button] until a click is heard to turn it off.

Brightness Levels

When the light is on, short press the [Mode Button] (STROBE READY™) to cycle through the following brightness levels: HIGH → MID → LOW.

STROBE READY™

• When the light is off, press and hold the [Mode Button] (STROBE READY™) to access STROBE Mode. Release to turn it off.
• When the light is on, long press the [Mode Button] (STROBE READY™) to access STROBE Mode. Short press the [Mode Button] (STROBE READY™) to return to the previous status, or click the [Power Button] to turn off the light.

Power Indication

When the battery is inserted, or the flashlight is disconnected from the power source during charging, the [Power Indicator Light] will flash to show the battery voltage (±0.1V). For example, when the battery voltage is at 4.2V, the indicator will flash 4 times, followed by a 1.5-second pause and 2 more flashes.

Different voltages represent the corresponding remaining battery power levels:

• 1 x 21700 battery: Low power (3.5V) → 3.7V → Full power (3.9V) → 4.2V
• 2 x CR123 batteries: Low power (4.8V) → 5.6V → Full power (6.0V) → 6.4V

When the light is on, the [Power Indicator Light] will indicate the remaining battery power:

• Steadily lit: Power is above 50%.
• Flashing slowly: Power is below 50%.
• Flashing quickly: Power is below 10%.

Note:

• When using two CR123/RCR123 in series, the indicator shows the average voltage between the two batteries.
• Batteries should be replaced or recharged when the output appears dim or the flashlight becomes unresponsive due to low power.

ATR (Advanced Temperature Regulation)

The integrated ATR technology regulates the output of the P10i according to the working condition and ambient environment to maintain optimal performance.

Maintenance

Every 6 months, threads should be wiped with a clean cloth followed by a thin coating of silicone-based lubricant.

Manufacturer Information

SYSMAX Innovations Co., Ltd.

TEL: +86-20-83862000

FAX: +86-20-83882723

E-mail: info@nitecore.com

Web: www.nitecore.com

Address: 24/F, TCL Plaza, No. 18 Haizhou Road, Haizhu District, Guangzhou, 510335, Guangdong, China

Made in China

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