HOLIDAY INFORMATION: Customer Service Hours, Shipping Schedules, Etc.


{"closeOnBackgroundClick":true,"bindings":{"bind0":{"fn":"function(){$.fnProxy(arguments,\'#headerOverlay\',,\'\');}","type":"quicklookselected","element":".ql-thumbnail .Quicklook .trigger"}},"effectOnShowSpeed":"1200","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-thumbnail","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}

 34 of 63 
Orion Telescopes
Orion Dynamo Mini 74.88Wh Lithium AC/USB PowerBank
You Save 
Accepted Payment
In Stock
  • Super portable 74.88 Watt-hour Lithium Ion battery
  • 20,800mAh/3.6V, USB and AC output
  • Weighs only 1.6 lbs!
  • Dimensions: 6.9" x 4.4" x 1.4"
  • Features 2x USB outputs (5v/2.4A each) and 1x AC outlet (85w continuous, 100w max)

Learn more
Item #  02306

The days of having to lug around heavy lead-acid batteries are gone, and that's cause for celebration around our office! Thanks to Lithium Ion technology, batteries are getting smaller and more efficient. Introducing the Orion Dynamo Mini Lithium PowerBank, a Lithium Ion battery that weighs only 1.6 lbs!

This battery is perfect for any "on-the-go" astronomer, as well as hikers, campers, and anyone who just wants to enjoy the outdoors, but not be too far away from their electronic devices. It features a generous 74.88 Watt-hour battery capacity (20,800mAh at 3.6V) and includes two USB ports as well as a 3-prong AC outlet. By using the two USB outputs, you can charge two phones, tablets, or any other USB powered device simultaneously with a max output of 2.4A per USB port. And if you have an AC device that needs power, the 85W continuous, 100W max AC port provides that extra power boost you need.

Outdoor enthusiasts will especially love the small form factor. The Dynamo Mini is just 6.9" x 4.4" x 1.4" on a side. Now you don't have to worry about packing all your gear and wondering how to carry a large and heavy battery with you. At less than 1.5" thick, the Dynamo Mini will fit into your backpack, so you'll always have power available for your phone, camera, and all other powered accessories you've brought along.

And of course, if you have a computerized telescope with an AC adapter, the Dynamo Mini Powerbank is just the accessory to have on hand to keep your setup lightweight and portable. It's even small enough to sit on the accessory tray of many telescope tripods. This is by far the most convenient battery we've offered, so whatever outdoor activities you enjoy, make sure you include an Orion Dynamo Mini Lithium Powerbank to keep all your devices running!

NOTE: This unit contains a lithium battery. Not available for Air Service delivery anywhere. Not available for Standard Service to AK, HI, PR, APO/FPO addresses or island destinations. Not available for 3-Day, 2-Day and Next Day Delivery.

Due to hazardous shipping requirements, this product cannot be returned without pre-authorization and an RMA. Please call Customer Service at 800-447-1001 if a return is required for this product.


Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Product Support
Visit our product support section for instruction manuals and more

AC adapter

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product. This charge varies based on the shipping method.

Standard Delivery: $0.00Standard Delivery to Canada: $10.00


This product is available to ship Standard delivery to the 48 continental United States. Delivery is not available to US territories/protectorates or APO/DPO/FPO addresses. Standard delivery is available to Canada. 3 Day, 2nd Day and Next Day delivery is not available.

{"closeOnBackgroundClick":true,"bindings":{"bind1":{"fn":"function(event, startIndex, itemCount, newItems) { QuickLookWidget.assignEvents(newItems); $(\".Quicklook > .trigger\", newItems).bind(\"quicklookselected\", function(event, source, x, y) {\'#_widget2089664872034\', event, source, x, y); }); }","type":"itemsloaded","element":".PagedDataSetFilmstripLoader > .trigger"},"bind0":{"fn":"function(){$.fnProxy(arguments,\'#_widget2089664872034\',,\'\');}","type":"quicklookselected","element":".Quicklook > .trigger"}},"effectOnShowSpeed":"","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-category","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}