[1000mp] Gel RV Battery Doesnt Vent Or Spill 081717

Sat Aug 19 10:49:44 EDT 2017

What????

In a message dated 8/18/2017 7:11:29 A.M. Central Daylight Time,  
kristijan.persic at pu.t-com.hr writes:

O  my...
Please stop this spamming

Sent from samsung mobile  phone

-------- Izvorna poruka --------
Šalje: WD8ARZ  <wd8arz at comcast.net> 
Datum:18.08.2017.  00:26  (GMT+01:00)  
To: 1000mp at mailman.qth.net 
Naslov: [1000mp] Gel RV Battery Doesnt Vent  Or Spill 081717 

To operate various shortwave, and equipment from my  base, mobile or
portable, I think a battery back up system is essential. It  can even be
the primary system to operate from, thus avoiding even  temporary power
loss glitches from switch over transfer systems. Shortwave  radio
coverage is part of many hf ham transceivers too, as with my  FT-1000MP

The battery system must have the capability to be operational  24 / 7 -
Therefore I dont rely on just commercial power source. Even though  my
vehicle has a standard engine twelve volt battery system, last thing  I
would want to happen is drain the vehicle battery and not be able  to
start the vehicle. Also draining a standard lead acid battery  reduces
the number of recharges it can do, and also shortens its life  capacity.
It is intended for short term high current drain as in starting  the
vehicle.

RV batteries on the other hand are designed to provide  twelve volts at
lower current drain over a longer period of time and not to  be damaged
if the RV battery is over discharged. RV batteries as a result  shouldn't
be used as a vehicle starting battery. A Gel RV battery is even  okay if
tipped over. That is why I put in a separate Gel battery system  to
operate my ham gear in my vehicle, and my base station. Didnt use  a
lithium type battery on purpose due to the risks, especially in  closed
spaces:
https://www.lion.com/lion-news/july-2015/how-lithium-batteries-become-a-work
place-hazard  

The battery chosen instead is a: VMAX SLR125 RV  Battery
https://www.vmaxtanks.com/FAQ_ep_42.html

Battery system used  for all the ham radio gear and the hiq screwdriver
antenna operation in the  vehicle was duplicated for the home hf system.
The FT1000MP rig used next  to my easy chair in the living room was
reconfigured so it wasn't using its  internal AC to DC power supply. That
keeps that internal supply isolated  but available if some future
circumstances would need it .... where the  radio goes that internal
power supply of course goes with it.

To  protect the battery and to charge it properly, I use a PG40S Power
Gate  that uses the Anderson Power Pole connector standard. Here is a
link to  identify this unit properly, but of course shop around for your
best  deal.
http://www.westmountainradio.com/product_info.php?products_id=pg40s

When  a car or RV battery is not being charged, its operating voltage
will drop  from the alternator level of around 13/14 bolts to around 12+
something ...  and after some use to start dropping below twelve volts.
Some HF gear might  not transmit clean audio when the source voltage
drops much below twelve  volts. Check out your own gear, as this is not
always the case ......  Alternators Are Not Heavy Current Drain Capable
Like Batteries, they are  short duty cycle for heavy current drain charging.

That covers an  external source to operate / charge an hf radio operation
battery  system.

However....

.... it is also important to pay attention  to power distribution from
the battery to the gear that is going to operate  from that battery.
RIGrunner utilizes a 13.8 VDC power panel with  simple-to-use Anderson
Powerpole connectors.... and these are the standard  power connectors the
ARRL recommends all amateur radio gear use. This  allows compatibility
among amateur equipment when used in the field and to  be able to
interface with other hams gear quickly and safely. There are  several
versions of the RIGrunner depending on how many connectors you want  it
to have to feed your expected gear load. I use this version: 40 amp  12
VDC continuous duty with 8 outlets with a sample link  at:
http://www.westmountainradio.com/rigrunner.php and the manual is  at:
http://www.westmountainradio.com/pdf/RRmanual.pdf

In the mobile  I use another gadget that is not needed on the base
system, an APO3. It  protects the battery from starting transients, and
from over draining the  starting battery if it is being used for the ham
gear. That is because a  vehicle system has a risk that the base station
does not. If a vehicle has  a bad starting battery and your operating
from that battery, when starting  the vehicle the battery doesnt protect
the ham gear from the starting  transients the starter system could have,
especially if that starting  system is going bad. The APO3 is a black box
designed to prevent a vehicle  battery from being discharged and damaged
by a DC load. Typically it is  used to switch a radio transceiver off 10
minutes after the vehicle is shut  off. The APO3 is designed for 12 volt
vehicle electrical systems with  negative ground. It can switch up to 20
amps and carry up to 30 amps. The  shutdown voltage can be set to one of
four pre-programmed voltages (11.8,  12.1, 12.7, 13.05 volts) using two
DIP switches; the shutdown delay can be  set to one of four
pre-programmed times (0, 5, 10, 20 minutes). The device  is housed in a
sturdy ABS plastic case.

The APO3 is ideal for use  with mobile APRS stations. It allows the radio
to transmit a few position  reports after the vehicle is shut off before
turning off the radio and GPS.  This reduces clutter on the APRS and
Digital channels and prevents the  vehicle battery from discharging.

Can connect the transceiver right  across the battery, fusing all radio 
cable
leads. Check out the  information about connecting transmitters right to
the battery as detailed  by  W1ZR.
http://www.westmountainradio.com/pdf/Emergency%20Power%20at%20W1ZR1.pdf

Choosing  a battery to operate the ham and shortwave radio gear from has
to also  include safety in addition to its capacity performance. A gel
battery  doesnt vent gases during the charging or discharging operation
unless  abused, such as when shorted. Properly fused, even that event
should not be  a problem. VMAX SLR125 RV Battery has been a choice that
has never let me  down, and gives me a safety edge when using it in my
home or  vehicle.
https://www.amazon.com/Vmaxtanks-Vmaxslr125-rechargeable-Solar-Inverters/dp/
B00ACNO2AO/ref=pd_sim_23_1?_encoding=UTF8&psc=1&refRID=QCJ25T58VCYJP31WW5C4 

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