Best in 7 days
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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
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Description
PowerTank LithiumThe PowerTank Lithium keeps the charge going for the astronomer on the go. The Lithium Iron Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries. The LiFePO4 has an un recharged shelf life of 10 years compared to 3 years for the Lithium Iron and 6 9 months for a Sealed Lead Acid battery. The battery performance of the PowerTank Lithium phosphate degrades at a much slower pace than other chemistries. The
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 449 reviews
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Product Reviews
★★★★★ 3
Great pillows, needs more filler tho!
Size: King Size Pack of 2, Color: White
Partner says it's the best thing that's ever happened and has helped his back/shoulder pain tremendously. I personally think it needs to give you more fluff or whatever the filling is. Because the tiny bag that comes btwn the two was not enough! However, still comfy, filling is nice and fluffy like a cloud.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Very comfortable
Size: Queen (1 Count), Color: White, Size: Queen (1 Count), Color: White
Takes a few minutes to fluff up and inflate after opening. Nice fabric. One side is bamboo and one side is cooling. Looks high quality.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Really Happy With These Pillows!
Color: Blue, Size: Queen(2 Pack)-20'*30'
**Review: Really Happy With These Pillows!**
I purchased these pillows and couldn’t be happier!
First – they’re cool on *both* sides—finally! I’m not sure why that’s so rare (probably to cut costs), but these actually have cooling material on both sides, and it works really well.
Second – the venting around the center helps keep them from getting hot at night. A nice touch that makes a difference for hot sleepers.
However, the third feature is the best: the filling. Like many adjustable pillows, you can add or remove the fill, and these come with a small extra bag. The base amount was just right for most people. I had to remove some for my wife but added a bit more to mine. The fill itself is excellent—soft but supportive. You sink into it, but don’t hit bottom.
These pillows also have a good weight to them, so they don’t feel cheap. They fluff up great and seem very well made. I followed the recommended dryer run when I first received them and had no odor issues at all.
Highly recommend!
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Reviewed in the United States on August 25, 2025
★★★★★ 5
Awesome Pillows
Color: Blue, Size: King(2 Pack)-20'*36'
AWESOME, they actually stay cool!!! Extra foam to firm and great instructions how to remove foam and make softer. Fantastic product
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Reviewed in the United States on April 16, 2026
★★★★★ 4
Very fluffy and comfortable.
It only stays cool for a few minutes. It is a very comfortable pillow.
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Reviewed in the United States on December 13, 2025
