08-16-2022, 10:36 AM | #1 |
Join Date: Mar 2016
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Battery question
Are there any guidelines for how TL9+ power cells from Ultra-Tech line up with TL6-8 batteries from High-Tech in terms of power generation?
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08-16-2022, 11:06 AM | #2 |
Join Date: Aug 2004
Location: Ronkonkoma, NY
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Re: Battery question
Some people have jumped on a quote from Psi-Tech that says "The rechargeable power cells in GURPS Ultra-Tech store approximately four times the energy of the same weight of non-rechargeable batteries from GURPS High-Tech."
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08-16-2022, 11:31 AM | #3 |
Join Date: Aug 2007
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Re: Battery question
Based on Pyramid 3/38 _Laser and Blaster Design_ 4x per level is the rule for power cells after TL9 as well.
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Fred Brackin |
08-16-2022, 11:43 AM | #4 |
Join Date: Mar 2016
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Re: Battery question
There's a very confusing line in UT that says "An A cell is 10 times as powerful as a modern AA cell", which implies than an UT AA cell is equivalent to a HT XS battery, which would be more like 200x efficiency. But if you assume that the default stats are TL8 in HT and TL9 in UT, x4 efficiency per TL does seem to bear out. I have no idea what they were thinking with that one line, though.
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08-16-2022, 01:16 PM | #5 |
Join Date: Aug 2007
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Re: Battery question
Could you specify _where_ you found that? I just looked though my copy of UT (4e, a recent download of the pdf) and p.19 (which is all about power cells) doesn't say anything like that.
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Fred Brackin |
08-16-2022, 01:38 PM | #6 |
Join Date: Mar 2016
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Re: Battery question
Page 20, the very first paragraph under "Sizes of Power Cells". I checked the PDF I just got from BOH, so I don't think it's an update issue.
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08-16-2022, 01:57 PM | #7 |
Join Date: Aug 2004
Location: Ronkonkoma, NY
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Re: Battery question
My older color copy of the PDF of GURPS Ultra-Tech, as well as my first printing hardcover book, says on page 19, "An A cell is 10 times as powerful as a modern AA cell." The current version of the PDF says "An A cell is 10 times as powerful as an AA cell."
That looks like corrected errata, and it should not be concluded that power cells are given a real-world equivalence in GURPS Ultra-Tech. |
08-16-2022, 02:19 PM | #8 | |
Join Date: Mar 2016
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Re: Battery question
Quote:
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08-16-2022, 03:17 PM | #9 |
Join Date: Feb 2005
Location: Berkeley, CA
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Re: Battery question
4e made a decision to avoid hard data about batteries, but it appears that an F cell is supposed to power a medium vehicle (like a car) and weighs 200 lb, which is around a fifth the weight a real-world EV battery.
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