PowerTank Glow 5000 Portable USB Power Bank + Red Astronomy Flashlight

Our review of the PowerTank Glow 5000 finds it is a compact, practical accessory for amateur astronomers who need a reliable red light and backup phone power while observing. The single biggest reason to buy is that it combines a three-level red LED flashlight tuned to preserve night vision with a 5000 mAh USB power bank, keeping devices charged without adding bulky gear to a telescope bag. It is small enough to attach to a tripod leg and simple to operate, making it a useful field companion for short observing sessions and outreach events.

Key Features

• 2-in-1 design: A handheld red flashlight integrated with a USB output so users carry one compact tool instead of separate items.
• 5000 mAh capacity: The internal lithium-ion battery delivers a full recharge for most smartphones, useful during long nights away from mains power.
• Red LED with three brightness levels: Adjustable output preserves night vision while providing enough light for equipment adjustments or reading charts.
• Safe lithium battery: Celestron designed the cell to resist overheating and support more than 500 charge cycles for dependable field use.
• Mounting options: Two silicone straps and a wrist strap let users attach the unit to a telescope tripod leg or carry it securely.
• USB Type A output: Standard 5V DC charging works with phones, tablets, and other small USB devices used at observing sites.

Who It's For

The PowerTank Glow 5000 is aimed at backyard observers, astronomy club volunteers, and casual stargazers who want a compact, multiuse accessory. It is particularly handy for people who move between dark sites and need a red light that will not wash out night vision, while also keeping a phone or small device charged for imaging apps or star charts.

Observers who require very long autonomous power (multi-night runs for cameras or heavy equipment) or who need high-capacity power stations should look elsewhere, since the 5000 mAh capacity suits short to moderate outings rather than extended remote operations.

Pros & Cons

Pros

• Combines a dedicated astronomy red flashlight with a 5000 mAh power bank, reducing gear bulk.
• Three brightness levels let observers balance visibility and night vision preservation.
• Includes silicone straps and a wrist strap to keep the unit attached and accessible on a tripod leg.
• Designed lithium battery aims for safety and longevity across many charge cycles.

Cons

• 5000 mAh is useful for phones but may be insufficient for prolonged powering of larger devices or multi-night setups.

Specifications

Product	PowerTank Glow 5000
Battery capacity	5000 mAh, 5V DC lithium-ion
Output	USB Type A, 5V DC
Flashlight	Red LED with three brightness levels
Mounting	Two silicone straps plus wrist strap included
Cycles	Rated for 500+ charge cycles

Our Verdict

The PowerTank Glow 5000 is a sensible value for amateur astronomers who want a low-profile, dual-purpose accessory that protects night vision and provides emergency device charging. Its combination of a red flashlight, secure mounting straps, and a safe lithium battery makes it an efficient grab-and-go tool for evening sessions; users needing long-term power should consider a larger-capacity solution.

Frequently Asked Questions

Can the PowerTank Glow 5000 charge a smartphone?
Yes. The built-in 5000 mAh battery with USB Type A output provides a full recharge for most phones.

Does the red light preserve night vision?
Yes. The red LED is specifically intended to preserve night vision and has three brightness levels to adjust for tasks and ambient darkness.

How can it be carried on a telescope?
Two silicone mount straps and a wrist strap are included to attach the unit to a tripod leg or carry it securely.