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External Battery Packs
An external battery pack keeps your thermal scope, digital night vision or monocular running long after the internal battery would quit. On a cold night, when lithium cells drain fastest, extra power on the rail or in a pocket is often the difference between finishing the hunt and packing up early.
What we carry
- Thermal Scope External Power Kit (10K mAh): our larger DNO kit for long sits and scopes that draw more power.
- 5000mAh External Battery Pack Kits: a lighter DNO option for shorter hunts.
- Sightmark Mini QD Battery Pack: a compact quick-detach pack from Sightmark.
- Picatinny Rail 90 or 45 Degree Offset with QD: a mount that holds a DNO battery kit on your rail, angled out of the way.
Choosing your pack
Size the pack to your night. You can browse by capacity in the 10,000 mAh and 5,000 mAh sub-categories. More capacity means longer runtime and more weight. Then check the connection: the pack has to match your optic's power input, so confirm the cable before your first hunt with it.
A picatinny rail battery holder like our offset QD mount keeps the cord short and the pack off your sight picture. These kits work as a night vision battery pack for digital NV scopes just as they do for thermal. Dark Night Outdoors branded kits carry a lifetime warranty against defects in normal use.
Frequently Asked Questions
What's the difference between a power bank and a battery pack?
Mostly the name. Both are portable rechargeable batteries. Power bank usually means a USB pack for phones, while battery pack often describes one meant for a specific device. Our DNO kits are sold as kits for thermal optics, and they pair with our offset QD rail mount to sit on the rifle.
How long does an external battery pack last?
Per charge, it depends on capacity and how much your optic draws, so a 10K mAh kit runs roughly twice as long as a 5,000 mAh one on the same scope. Over its life, a lithium pack typically handles a few hundred full charge cycles before capacity drops noticeably.
Which is better, a 10,000 mAh or a 20,000 mAh power bank?
A 20,000 mAh bank runs longer but weighs more, and on a rifle you feel that weight. For most night hunts, a 10,000 mAh pack is plenty for a thermal scope. If you need more, carrying a second pack lets you swap without hanging a big brick off your rail.
Which power bank is best for outdoor use?
Pick one built to mount securely, survive cold nights and connect directly to your optic. That's why we carry packs made for hunting gear, like the Sightmark Mini QD Battery Pack and our DNO kits, instead of phone chargers that slide around in a jacket pocket.
