[NSRCA-discussion] LiPo Fun Fact 'O The Day

Atwood, Mark atwoodm at paragon-inc.com
Fri Oct 9 17:20:40 AKDT 2015


Apparently you guys never put them on charge when they're hot!!  Then they definitely cool down while charging.  :)

Sent from my average intelligence  phone


On Oct 9, 2015, at 8:44 PM, Robert L. Beaubien via NSRCA-discussion <nsrca-discussion at lists.nsrca.org<mailto:nsrca-discussion at lists.nsrca.org>> wrote:

Ditto.  They get warmer even if unnoticed.

-           Robert Beaubien
-           Sr. Software Architect
-           Kool Software LLC

"Dear Algebra, Please stop asking us to find your X.  She's never coming back and don't ask Y."

From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Ed Alt via NSRCA-discussion
Sent: Friday, October 9, 2015 5:11 PM
To: chuenkan at comcast.net<mailto:chuenkan at comcast.net>; General pattern discussion <nsrca-discussion at lists.nsrca.org<mailto:nsrca-discussion at lists.nsrca.org>>
Subject: Re: [NSRCA-discussion] LiPo Fun Fact 'O The Day

They do warm up when charging, even at low rates.  It's the physics behind Ohms law that governs some of that.  It may not be very noticeable, but it is happening nonetheless.

On Oct 9, 2015, at 8:03 PM, Phil Spelt via NSRCA-discussion <nsrca-discussion at lists.nsrca.org<mailto:nsrca-discussion at lists.nsrca.org>> wrote:
I would say "C" below:  I have never had a lipo pack get warm during charging.  That's because i always charge somewhere between 1.8-2.0 C.  For my electric planes I buy enough batteries so I do not have to hurry-charge in order to get back into the air.  I charge the lipos in my starter & glow igniter at home in the shop when I have plenty of time.  Now, in the interest of full disclosure, I do not use $150.00 battery packs, and none of my electric planes are for pattern.

Phil Spelt, KCRC Emeritus, Secretary
AMA 1294, Scientific Leader Member
SPA L-18, Board Member
(865) 435-1476v  (865) 604-0541c


________________________________
During charging, a LiPo battery becomes:


A)     Warmer

B)     Colder
        C)   None of the above
        D)  All of the above

--Keith Hoard
--klhoard at outlook.com<mailto:klhoard at outlook.com>


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