[TVARC] Battery operation

[Earle D Hancock]

Thanks Mike,
	Still not sure about my maths but field experience trumps all.

Earle

> On May 14, 2018, at 6:40 AM, mike regan <mikeeregan at yahoo.com> wrote:
> 
> Earle,
> I operate my IC-7300 remotely using a Bioenno Power 20ah LiFePo4 battery.  Model is BLF-1220TS.
> I also have a Powerwerx portable power box for this battery.
> 
> I can operate the IC-7300 all day on this setup. Realistically this means 5 or 6 hours of portable operating.
> 
> There is enough room in the box to also have a second 15ah Bioenno battery for backup, and for extended operating time.
> 
> I hope that this helps.
> 
> 73  
> 
> Mike Regan
> KM4ZTE
> 
> On Sunday, May 13, 2018, 6:48:40 PM EDT, Earle <earleiphone at gmail.com> wrote:
> 
> 
> It’s a rough crowd. But what’s the answer?
> 
> E
> 
> Sent from my iPhone
> 
> On May 13, 2018, at 6:42 PM, doncrosby at aol.com <mailto:doncrosby at aol.com> wrote:
> 
>> Earle
>> 
>> I just ran quick test readings using my 7300.  Receiver current is 1a. @ 12.6vdc.
>> 
>> Average current on "SSB Talk" while reading "Key Down" current on CW with my 7300:
>> 
>> Power Level       10w        30w       100w
>> SSB                      4a           5a           7a
>> CW                       6.5a        9a          16a
>> 
>> Licenses... 
>> I have some extra dog licenses and would part with them except that you fail to qualify because of poor spelling.
>> 
>> Honorary is a more better than Honerary me thinks.
>> 
>> 73
>> Don w1ejm
>> 
>> 
>> 
>> -----Original Message-----
>> From: Earle D Hancock <earleiphone at gmail.com <mailto:earleiphone at gmail.com>>
>> To: villages reflector <tvarc at mailman.qth.net <mailto:tvarc at mailman.qth.net>>
>> Sent: Sun, May 13, 2018 5:27 pm
>> Subject: [TVARC] Battery operation
>> 
>> Good evening all,
>> 	I am planning to build (really assemble) a go box for VHF/UHF and HF radios.
>> 	The specs for the HF (Icom 7300) call for 21ah in transmit and .9ah in standby.
>> 	I figure transmit time of approximately 30%. So 1 hour of operation would seem to call for 7 to 10 ah transmit and approximately .6ah in standby for a total each hour of operation of 8 to 12ah. In 24 hours (the goal with out any charging) that’s 288 ah.
>> 	The specs for the Yaesu 400 call for 10ah in transmit and .5ah in standby. Again estimating 30% transmit time that’s 3 to 4ah transmit for every hour of operation. In standby it works out to less than .3 ah. In 24 hours (again the goal) thats 104ah. All math is rounded up, again figuring safety margin.
>> 	I would appear that I need to have a battery that would handle 392ah to handle a period of 24 hours.
>> 	If, by some weird chance, I have calculated correctly, and again figuring in a safety margin, I need a battery with a 500ah rating or better.
>> 	Your thoughts?
>> 
>> 	BTW: if I am correct I believe I should be awarded an honerary extra license.
>> 
>> E 
>> Earle KM4ISN
>> earleiphone at gmail.com <mailto:earleiphone at gmail.com>
>> ______________________________________________________________
>> TVARC mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/tvarc <http://mailman.qth.net/mailman/listinfo/tvarc>
>> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm>
>> Post: mailto:TVARC at mailman.qth.net <mailto:TVARC at mailman.qth.net?>
>> 
>> This list hosted by: http://www.qsl.net <http://www.qsl.net/>
>> Please help support this email list: http://www.qsl.net/donate.html <http://www.qsl.net/donate.html>
> ______________________________________________________________
> TVARC mailing list
> Home: http://mailman.qth.net/mailman/listinfo/tvarc <http://mailman.qth.net/mailman/listinfo/tvarc>
> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm>
> Post: mailto:TVARC at mailman.qth.net <mailto:TVARC at mailman.qth.net>
> 
> This list hosted by: http://www.qsl.net <http://www.qsl.net/>
> Please help support this email list: http://www.qsl.net/donate.html <http://www.qsl.net/donate.html>
Earle KM4ISN
earleiphone at gmail.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/tvarc/attachments/20180514/07eed3e6/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 3879 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/tvarc/attachments/20180514/07eed3e6/attachment-0001.p7s>