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Sep 16, 2019, 02:39 PM
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crossup's Avatar

New Dead 70 mah cells

I have purchased many of your batteries which provided great performance. BUT I have now ordered 70mah cells twice and received cells at ZERO volts and puffed up, directly out of the package.

I emailed the supplied support email address to get warranty service and after many emails I have never received a reply. I have check my junk and spam folders and filters and am not missing replies.

I have to believe when 4 of 6 cells are shipped dead that its not an isolated issue, so I'm not going to be ordering
any thing else despite loving the G5 and G7/8 cells unless I get some response. I fly F3P with the larger cells and buy new cells every year to insure maximum performance.
Last edited by crossup; Sep 16, 2019 at 03:20 PM.
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Sep 17, 2019, 01:35 AM
Thread OP
Hello, please contact me email direct to proddev (at)

Please include your Order# or Receipt copy.

I checked our site and the contact us page is working. Please send a screenshot of any sent messages to my email. Thanks
Sep 21, 2019, 07:41 AM
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crossup's Avatar
Thanks HR, I will send later today. Fortunately, I keep paperwork for years and emails as well.
Sep 21, 2019, 07:54 AM
- Passing Through -
Time Machine's Avatar
I love shopping at Hyperion, however, they don’t seem to be restocking cars and trucks. I hope you get more in soon.
Sep 23, 2019, 11:26 AM
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crossup's Avatar
Having replied to Hyperion Rocks, I think the issue is that while the contact page may work, the warranty section says to contact "[email protected]" and if you click on the link the email is directed to "[email protected]". My experience is admin mail generally goes to the website administrator, not company employees
Sep 25, 2019, 03:08 PM
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crossup's Avatar
Day 3 and no reply

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