Today's Message Index:
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1. 04:46 AM - Re: EarthX lithium (user9253)
2. 06:31 AM - Re: Re: EarthX lithium (Robert L. Nuckolls, III)
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| Subject: | Re: EarthX lithium |
There was a recent comparison of a LiFePo battery versus Lead Acid and the test
results posted in a graph on VansAirforce.
http://www.vansairforce.com/community/showthread.php?t=111788
It seems that the actual Amp Hour rating of the LiFePo is only half of the advertised
rating. Even so, a 36 amp hour LiFePo provides almost the same endurance
as a PC680 at less than half of the weight. The author intends to install
the LiFePo in his RV-8A. It will be interesting to see if he is satisfied with
this battery a few years from now.
Joe
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=421907#421907
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| Subject: | Re: EarthX lithium |
At 06:45 AM 4/11/2014, you wrote:
>
>There was a recent comparison of a LiFePo battery versus Lead Acid
>and the test results posted in a graph on VansAirforce.
>http://www.vansairforce.com/community/showthread.php?t=111788
>It seems that the actual Amp Hour rating of the LiFePo is only half
>of the advertised rating. Even so, a 36 amp hour LiFePo provides
>almost the same endurance as a PC680 at less than half of the
>weight. The author intends to install the LiFePo in his RV-8A. It
>will be interesting to see if he is satisfied with this battery a
>few years from now.
I missed getting the 4th slot filled on time in
the series of articles on batteries for Kitplanes.
Spent an extra month attempting to engage a number
of suppliers/manufacturers in technical conversations
about their products.
Only one has been eagerly forthcoming (EarthX) and
one other begrudgingly offered tid-bits of the
requested data.
I've offered to work with EarthX to wordsmith
specification and sales literature that would
get them more than a casual glance and fewer
snickers from a TC airframer.
Part IV of the battery articles has been submitted
to Paul Dye. I've discovered a lot about the current
state of LiPo offerings but my inquiries have generated
more questions than answers!
As the thread cited above demonstrates, there's
a good bit yet to be learned about the lithium
battery industry. Encourage folks on the
VansAirForce-list to join us here on the AeroElectric-
List as well.
By the way, that PbEq (lead-acid equivalency) thingy
is pure marketing hype. It speaks to battery impedance
and ability to crank engines . . . says NOTHING about
energy available for battery-only ops.
Bob . . .
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