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5,000 mAh
A 5,000 mAh power bank is the compact end of external power for a thermal scope, monocular or digital night vision riflescope. It rides on the rail or in a pocket, plugs into your optic, and keeps it running after the internal battery would have quit on a long, cold sit.
How to size your battery pack
The mAh figure (milliamp hours) tells you how much charge a pack holds. A 5,000 mAh pack is smaller and lighter, so it suits a lighter rifle or a shorter night of calling coyotes. Is a 5,000 mAh power bank good enough for you? If you run your scope with the rangefinder, recording or Wi-Fi switched on, or you sit from dusk until the early hours, step up to our 10,000 mAh battery packs, such as the Thermal Scope External Power Kit (10K mAh). How long any pack lasts depends on how much power your optic draws, so check your manual for that number before you choose.
Dark Night Outdoors (DNO) branded battery kits carry a lifetime warranty against defects in normal use, and you can compare every option side by side on the external battery packs page. Not sure which size fits your setup? Call (309) 781-8421 and talk to someone who knows these kits.
Frequently Asked Questions
What does a 5,000 mAh battery mean?
It means the pack stores 5,000 milliamp hours of charge, which is a measure of capacity. In theory it could supply 5,000 milliamps for one hour, or 500 milliamps for ten. Real runtime on a thermal scope comes in lower, because some energy is lost converting voltage and your optic's draw changes with features like the rangefinder and recording.
What is a 10,000 mAh battery?
A 10,000 mAh battery holds twice the charge of a 5,000 mAh pack, so it runs the same optic about twice as long. The tradeoff is size and weight on your rifle. Our Thermal Scope External Power Kit (10K mAh) is the larger option for all-night sits and scopes that pull more power.
Is 5,000 or 4,000 mAh better?
For runtime, 5,000 mAh wins, since it holds 25 percent more charge than a 4,000 mAh cell at the same voltage. Whether that extra capacity matters comes down to your night. A few stands of calling may never drain either one, while a dusk-to-dawn hog hunt in the cold will.
How long can a 5,000 mAh power bank last?
That depends on what you plug into it. Divide the pack's usable capacity by your optic's current draw to get a rough figure, then knock off some for conversion loss and cold weather. Cold slows lithium cells down, so keep a spare pack in an inside pocket on winter nights.
How long does a 5,000 mAh power bank take to charge?
Charge time depends mostly on the charger and cable you use. A higher-output wall charger refills a pack faster than a computer USB port does. Charge it fully the afternoon before a hunt, and top it off again if it has been sitting in the truck for a few weeks.
