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Old September 16th 06, 11:47 PM posted to rec.radio.amateur.antenna
ml ml is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 225
Default and amps 12v regulator?

dear richard:

86% seems rather poor for a switcher that is dedicated to 13.6V (or
lower) in and 12V (or higher) out. I would have expected it in the
90s.

Yeah i thought so too asking for more details got a chart 86-90percent
'depending'


Depends on the quality of the batteries and how close they track.

wel I'd be using east penn 8d gell or agm 12v told they are pretty
good


I agree with, and use what Ed suggests. I have two batteries floating
on a 20A capacity power supply. Each battery and supply are fitted
with high current connectors (the battery connectors used in electric
lift equipment). They also have additional high current connectors to
fan out to the equipment. Don't forget inline fuses.

how did you come by this kinda cable?

right now i am using gold 100amp lugs crimped to 10ga wire, prob not the
least resistance but my distaince is 10ft kinda long but on the radio
side i can't terminate 10ga to my little powerpoles i'd hate to pluck
strands off to ensure a fit/crimp

i could make a pig tail adapter but i dunno if thats a good idea feeding
a large ga cable then going to say a 1"step down stub naturally my
draw will be appro for that size wire but still

My batteries are built from Hawker-Gates SLA CYCLON cells:
http://www.batteryweb.com/hawkersla-...abel=singlecel
l
which have 25 A/H capacity. This configuration allows me to swap
batteries and cells. The cell swapping, however, is only on the
occurrence of its failure, not as a routine.

The two batteries (no supply) were enough power for light duty over
field day weekends.

*****ok this has me sorta confused, ive seen these batteries alot so to get

12volts (ish) you have to put them in series so then you only end up
w/25amps no? and i am guessing your load isn't 25amps

my goal was to get a few days of normal op on battery a little math
showed i'd need to dedicate a room for the batteries and my budget will
go bust just on those 2 d sized units which i havn't found around nyc
'used'''

thanks for all your help as always rich


 
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