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        How to Fix a Defective Pixel

        By bmatheus  

        This article was originally published on Pro Staff member Clint Patterson’s website and WeHuntSC.com.

        Have you ever seen a small pixel in your Pulsar thermal optic’s screen that you wish wouldn’t stick out like a sore thumb? If you fire your gun a lot, these pixels that need repair occasionally occur, but fear not, Pulsar has anticipated this and provided a way to resolve it. I had one on my screen for a few months before I investigated and found that it’s simple to correct!

        What is a “Defective Pixel?”

        A “defective pixel” is a pixel within your viewfinder or screen that is “degraded,” sticks out and won’t go away even after your scope calibrates. I’ve owned a Pulsar Trail XP-50 for over 2 years and in this time, I’ve only had 2 defective pixels. Though, when it does happen, over time it will bother you enough to want to know how to fix it.

        In this screenshot, the defective pixel may not seem like a big deal, but when you’re hunting and looking through the viewfinder it can become distracting over time, especially if it’s near the crosshairs. While hunting with the defective pixel shown in the screenshot above, there were several times I panned the horizon and mistook the small white dot for being an animal that was a great distance out.

        How to Repair Defective Pixels

        The first thing to do if you notice a defective pixel or something that doesn’t look correct in your viewfinder is to calibrate the optic. If you haven’t changed any settings on your scope then your Pulsar thermal optic will automatically calibrate every so often to ensure what you’re seeing is accurate, clear and crisp. Calibrating the optic makes the clicking sound that you may have grown accustomed to hearing by now if you own a thermal optic.

        These calibrations can be forced by pressing the power button in the Trail models. If my screen ever gets hazy or I notice something not sharp in the viewfinder, I simply calibrate the scope. With all that said, the first thing to do if you notice a defective pixel is to force a calibration because generally, that will fix it.

        If calibrating the optic doesn’t resolve the issue, then repair the defective pixel by going to one of the last menu options in the menu system, the Defective Pixel Repair option.

        Once you choose this option it’s simple. The system presents you with a pixel selector and provides you with the ability to move the X and Y coordinates. This task feels very similar to sighting in the scope.

        Just move the X and Y coordinates until you are right on top of the defective pixel. As you update the values for the X and Y coordinates, the pixel selector will move across the screen as shown below. The pixel selector surrounded by the box is like the Picture-In-Picture feature and is a magnified (zoomed in) version of the pixel selector.

        The goal is to move the defective pixel selector on top of (or as close as possible to being on top of) the defective pixel.

        And that’s all there is to it! Note that depending on your unique situation, it may take repairing multiple pixels to get the screen back to the desired state. In one of the previous defective pixel scenarios, I had to repair two pixels before it was back clear, and the pixel was no longer bothering me.

        I also made a quick video walking through this process. You can see the video below:


        About Clint

        Clint Patterson is an outdoor enthusiast and technologist in the Charlotte, NC area. Primarily hunting in the Carolinas, Clint grew up hunting deer and turkeys in the sandhills of South Carolina. A few years ago, a rise in coyotes and hogs occurred in his region and he took up night hunting with a few of his friends. Clint loves this new type of night-hunting via thermal technologies and enjoys helping landowners and farmers.

        Clint works with a small group to run WeHuntSC.com, an online hub that promotes ethical hunting and information sharing, while helping connect and support hunters in South Carolina and beyond.

        Clint has an undergraduate degree in Information Systems, a master’s degree in Organizational Communications, is a published author and blogger, has built an electronic turkey decoy, still holds passing records in Europe from his days playing football overseas and is fluent in Spanish. Clint works for DNN Software. Learn more about Clint at ClintPatterson.com.

        *All photos courtesy of Clint Patterson.

        Pulsar Battery Packs and Compatibility

        By bmatheus  

        Pulsar thermal imaging units operate via batteries. These batteries are either internal or external. External batteries are mounted outside the unit and plug in by a cord into a port on the unit. An internal battery is inserted inside the unit and connects power that way. Each unit includes a battery; however, Pulsar offers extra interchangeable batteries for purchase for an additional cost offering you extended run times.

        External batteries:

        EPS5 Battery Pack

        The external EPS5 battery pack has a 20-hour discharge time, is rechargeable and will strap securely to your rifle with the included Velcro strap. A main charger, car adapter, an EU-US plug adapter and carrying case are included.

        Compatible units:

        • PL76311 Digisight N550
        • PL78027 Recon 325
        • PL78037 Recon 325R
        • PL78026 Recon 550
        • PL78036 Recon 550R
        • Yk28041 Ranger 5×42


        • Li-Pol battery
        • 5 Ah Ampere-hour rating
        • 4-hour full charge time
        • IPX3 rated
        • 500 + life cycle
        • 3 ounces
        • Operating temperature:

        PB8I Power Bank

        The weapon-mountable USB rechargeable PB8I power bank has an extended battery life of 20 hours. A built-in charge level allows you to know exactly how much battery life is left and it weighs only 7.8 ounces.

        Compatible units:

        Any unit with a micro USB, including Signal RT, Photon RT, Trail, Helion, Digisight Ultra and Digiforce RT.


        • Lithium-ion rechargeable battery
        • Waterproof and shockproof
        • Mountable to Picatinny rail
        • 5 hours full battery charge time
        • 20-hours full discharge time
        • ABS plastic housing
        • Operating temperature: -4 to 122 F


        The IPS5 is a rechargeable battery pack with a 10-hour battery life powering all Trail, Helion and Digisight Ultra units.

        Compatible units:

        • Helion
        • Trail
        • Digisight Ultra


        • 8-10-hour battery life
        • Li-ion battery
        • 4 hours full battery charge time
        • 4 hours full discharge time
        • Glass-nylon composite and metal construction
        • 6 ounces
        • Operating temperature: -4 to 104 F

        IPS 10

        The IPS10 has a 16- to 20-hour battery life and powers all Trail, Helion and Digisight Ultra units. Recharge it using a three-prong wall outlet or car adapter.

        Compatible units:

        • Trail
        • Helion
        • Digisight Ultra


        • Li-ion rechargeable battery
        • Up to 16-20 hours battery life
        • 8 hours full battery charge time
        • 40 hours full discharge time
        • Glass-nylon composite and metal construction
        • 5 ounces
        • Operating temperature: -4 to 104 F


        This external lithium-ion rechargeable battery has a waterproof plastic body and includes an extension cord, car adapter and EU to US plug adapter.

        Compatible units:

        The EPS3I fits older models: DFA, Apex and Digisight.


        • Rechargeable lithium-ion battery
        • Built-in charge indicator
        • Weapon-mountable
        • 2-hour full battery charge time
        • 12 volts
        • ABS plastic housing
        • Weaver mount
        • IPX5 rated
        • Weighs 8.1 ounces
        • Operating temperature: -4 to 140 F

        Double DNV

        The double DNV battery pack is a rechargeable NiMH battery pack designed to provide additional battery life to your Forward DN55 digital monocular, the Quantum and Quantum Lite thermal monoculars.

        Compatible units:

        • Forward DN55
        • Quantum
        • Quantum Lite


        • NiMH rechargeable battery pack
        • 6 volts
        • 6 hours full battery charge time
        • ABS plastic housing
        • IPX5 rated
        • Weighs 4.6 ounces
        • Operating temperature: 1—13 to 122 F


        The IPS7 is a Lithium-ion battery with a 6,400 mAH capacity and extends the operating time on the Helion to 10 to 13 hours.

        Compatible units:



        • Operating time (Helion) 10-13 hours
        • 3.7 voltage
        • 6,400 mAh capacity
        • Weighs 0.13 kg


        With a huge 12,800 mAh capacity, the IPS14 has a 21 to 26 hours (Helion) battery life.

        Compatible units:

        • Helion
        • Accolade
        • Trail
        • Digisight Ultra
        • Forward F


        • Lithium-ion battery
        • 12,800 mAh capacity
        • 21 to 24 hours battery life
        • Weighs 24 kg

        Internal batteries:

        BPS 3xAA Battery Holder

        The BPS3 replaces your B-Pack as backup power holding 3 AA batteries. It will power any Pulsar unit that accepts B-Pack battery packs.

        Compatible units:

        All Pulsar devices that accept B-Pack batteries.


        • Plastic housing
        • Weighs 1.8 ounces
        • Operating temperature: -13 to 122 F

        APS 3

        The APS 3 battery pack is a rechargeable Lithium-ion battery with a 3,200 mAh capacity.

        Compatible units:

        • Axion
        • Thermion


        • Plastic housing
        • Weighs 1.4 ounces
        • Operating temperature: -4 to 140 F

        APS 2

        The APS 2 battery pack is a rechargeable Lithium-ion battery with a 3,200 mAh capacity.

        Compatible units:


        • Plastic housing
        • Weighs 1.4 ounces
        • Operating temperature: -4 to 140 F

        Click here to shop all batteries.

        Need Backup? Get a Pulsar Battery Holder!

        By bmatheus  

        (Mansfield, TEXAS 2019/03/12) – Have you ever been on a hunt and your thermal unit’s battery dies? Well, worry no more! Get back to hunting with the new Pulsar BPS 3xAA Battery Holder (PL79119.) The battery backup allows you to use 3 AA batteries to power your unit by simply replacing your Pulsar B-pack with the new battery holder to extend your hunt into the night.

        Read more



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