ACEBEAM acebeam-p17
ACEBEAM Defender P17 User Manual
Model: acebeam-p17
Introduction
The ACEBEAM Defender P17 is a high-performance rechargeable tactical flashlight designed for various applications including law enforcement, security, emergency use, outdoor activities, and general illumination. It features a powerful CREE XHP70.3 HI LED, delivering a maximum output of 4900 lumens and a beam distance of up to 445 meters. The P17 is equipped with dual tail switches for intuitive operation and includes a built-in USB Type-C charging port for convenience.

Image: The ACEBEAM Defender P17 flashlight shown with its included 5100mAh rechargeable battery and USB-C charging cable.
Safety Information
- Do not point the flashlight directly into eyes. The high-intensity beam can cause temporary vision impairment or permanent eye damage.
- Keep out of reach of children.
- Do not disassemble the sealed head of the flashlight. Doing so may cause damage to the flashlight and will void the warranty.
- Use only the specified ACEBEAM 5100mAh rechargeable Li-ion battery (IMR NP-510A) or equivalent recommended by the manufacturer.
- Avoid exposing the flashlight to extreme temperatures or direct sunlight for prolonged periods.
- Ensure the USB-C port cover is securely closed when not charging to maintain water resistance.
- The front bezel contains 3 silicon nitride ceramic beads for emergency glass shattering. Handle with care to avoid injury.
Package Contents
Verify that all items are present in your package:
- ACEBEAM Defender P17 Flashlight
- ACEBEAM 5100mAh Rechargeable Li-ion Battery (IMR NP-510A)
- USB Type-C Charging Cable
- User Manual (this document)
Setup
1. Battery Installation
- Unscrew the tail cap of the flashlight counter-clockwise.
- Insert the ACEBEAM 5100mAh Li-ion battery with the positive (+) end facing towards the head of the flashlight.
- Screw the tail cap back on clockwise until it is fully tightened. Ensure a secure connection for proper operation and water resistance.
2. Charging the Battery
The included battery has a built-in USB Type-C charging port. You can charge the battery directly without removing it from the flashlight, or charge it externally.
- Locate the USB Type-C port on the battery.
- Connect the provided USB Type-C charging cable to the battery's port and the other end to a USB power source (e.g., computer, wall adapter, power bank).
- The indicator light on the battery will show charging status (e.g., red for charging, green for fully charged).
- Charging time may vary depending on the power source.

Image: Close-up view of the ACEBEAM Defender P17's tail cap, showing the dual switch design.
Operating Instructions
Dual Tail Switch Operation
The Defender P17 features two tail switches: a Tactical Switch and a Functional Switch.

Image: Diagram illustrating the Tactical Switch and Functional Switch on the tail cap of the ACEBEAM Defender P17.
- Tactical Switch (Larger, protruding button):
- Press and hold for momentary ON (Turbo mode). Release to turn OFF.
- Click for constant ON (Turbo mode). Click again to turn OFF.
- Functional Switch (Smaller, recessed button):
- From OFF: Press and hold for momentary Strobe. Release to turn OFF.
- From OFF: Click for constant ON (last used mode, excluding Turbo/Strobe).
- From ON: Click to cycle through brightness modes (e.g., Low-Medium-High).
- From ON: Press and hold for Strobe. Release to return to previous mode.
Mode Memory
The flashlight will remember the last used brightness level (excluding Turbo and Strobe) when turned off via the Functional Switch.
Emergency Glass Shattering
The front bezel of the Defender P17 is equipped with 3 silicon nitride ceramic beads. In an emergency, these can be used to shatter glass. Apply firm pressure to the glass surface with the bezel.

Image: Close-up view of the ACEBEAM Defender P17's stainless steel strike bezel with embedded silicon nitride ceramic beads.
Maintenance
- Cleaning: Clean the flashlight body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- O-rings: Periodically check and lubricate the O-rings with silicone grease to maintain water resistance. Replace O-rings if they are damaged.
- Threads: Keep the threads of the tail cap clean. Apply a thin layer of silicone grease to the threads occasionally.
- Battery Care:
- Charge the battery fully before first use.
- Recharge the battery every 3-4 months if not in regular use to prolong its lifespan.
- Do not over-discharge the battery.
- Storage: Store the flashlight in a cool, dry place. For long-term storage, remove the battery to prevent accidental activation or battery drain.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. | Battery is low or depleted. Battery inserted incorrectly. Tail cap is loose. | Charge the battery. Ensure positive (+) end faces the head. Tighten the tail cap securely. |
| Light flickers or turns off unexpectedly. | Loose tail cap or head. Dirty contacts. Battery low. | Tighten all parts. Clean battery and flashlight contacts with a clean cloth. Charge the battery. |
| Water ingress. | Damaged O-rings. Tail cap not fully tightened. USB-C port cover not sealed. | Inspect and replace O-rings if necessary. Ensure tail cap is fully tightened. Ensure USB-C port cover is firmly closed. |
Specifications
| Feature | Detail |
|---|---|
| Model | ACEBEAM Defender P17 |
| LED | C-ree XHP70.3 HI 6500K |
| Max Output | 4900 Lumens |
| Max Beam Distance | 445 meters (1459 feet) |
| Max Beam Intensity | 5495060cd |
| Max Runtime | 20 days (on lowest setting) |
| Battery | 1 x ACEBEAM 5100mAh 21700 Li-ion (IMR NP-510A) with built-in USB Type-C port |
| Material | Durable A6061-T6 aluminum, Premium type HAIII hard-anodized anti-abrasive finish |
| Dimensions | 147mm (Length) x 41mm (Head Diameter) x 26mm (Tube Diameter) / 5.79" x 1.61" x 1.02" |
| Weight | 227g / 8 oz (including battery); 154g / 5.43 oz (excluding battery) |
| Water Resistance | Water Resistant (specific IP rating not provided, but implied by description) |
| Special Features | Dual tail switches, Stainless steel strike bezel with 3 silicon nitride ceramic beads, Toughened ultra-clear glass lens with anti-reflective coating |
Warranty and Support
ACEBEAM products are manufactured with high-quality materials and craftsmanship. For warranty information and support, please refer to the official ACEBEAM website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.
For further assistance, you may visit the ACEBEAM Store on Amazon.
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