Using AGM Battery For Emergency Power


WD8ARZ <wd8arz@...>
 

Sometimes I use my mobile TM-D700 mobile radio for a base station too. Like in the mobile, I have set it up on its own battery operation system. Hopefully will hear about your power sources too ....� yep I have a generator, and a vehicle to get power from if needed, but wanted the house system to be separate.

Couple of days ago I placed a VMAX "Charge Tank" AGM Deep Cycle battery under the table that the rig sits on next to my easy chair in the living room.
====================================
Product Description from manufacture:
The heart of the VMAX is the unique physical and chemical structure of its plates. The special treatment and manufacturing process they undergo gains them unique reliability, strength and high performance far exceeding those of other Pb-Ca plates used in similar looking products. Using our specially designed Absorbed Glass Matt (AGM) between the VMAX plates, adds to its many physical and electrical advantages that make it superior to the Wet Lead Acid Batteries. This also maximizes the VMAX resistance to shocks and vibrations. Since the electrolyte is totally absorbed by the AGM, the VMAX is classified as "non-spillable and non-hazardous". A tough Tank seals and protects the tightly packed plates delivering the VMAX in a 100% maintenance-free package. Though VMAX Tanks are best known for their long life span, their capability to recover after repeated deep discharges is what makes them the favorite choice for any application.
====================================
Technical Details - 12 Volt 125Ah Group 31 AGM Deep Cycle Heavy Duty Battery
AGM Electrolyte Suspension System Custom Built Military Grade Alloys Maintenance free Operation Fast Charge Delivery Capabilities Extremely Low Self Discharge Rate Extreme Vibrations, Heat and Weather resistant Sealed Non-Spillable Non Hazardous Construction Maximum Power Density and Deep Cycle Capabilities

��� Brand Name: VMAX Solar
��� Model Number: VMAXSLR125
��� Item Height: 8.7 inches
��� Item Length: 6.8 inches
��� Item Width: 12.9 inches
��� Item Weight: 75 pounds

Includes carrying strap, military grade custom made plates, and are made here in USA.
Float Service Life span of 8 to 10 years. AGM with 99% recombination capabilities,
no dangerous fumes or gases.

https://www.vmaxtanks.com/SLR125-AGM-Solar-Battery-_p_38.html
https://www.amazon.com/Vmaxtanks-SLR125-Solar-Emergency-VMAX/dp/B004DR3IIC

To keep this battery charged am using a PG40S PWRgate:
http://www.universal-radio.com/catalog/hamps/2719.html
http://www.westmountainradio.com/product_info.php?products_id=pg40s

Output of this battery feeds an MFJ-4416B Supper Battery Booster so the battery
output is closer to the ac power supply output.... especially as the battery gets used
and output voltage starts to drop off.
http://www.mfjenterprises.com/Product.php?productid=MFJ-4416B

Fuses are between each section of the battery system: Input and output of 13.8vdc power supply,
pg40s, and each radio device connected to this power source.

So far so good. Looking forward to hearing what your home battery operated stations are using.

73 from Bill - WD8ARZ
South� Bend, Indiana


WD8ARZ <wd8arz@...>
 

Sometimes I use my mobile TM-D700 mobile radio for a base station too. Like in the mobile, I have set it up on its own battery operation system. Hopefully will hear about your power sources too ....� yep I have a generator, and a vehicle to get power from if needed, but wanted the house system to be separate.

Couple of days ago I placed a VMAX "Charge Tank" AGM Deep Cycle battery under the table that the rig sits on next to my easy chair in the living room.
====================================
Product Description from manufacture:
The heart of the VMAX is the unique physical and chemical structure of its plates. The special treatment and manufacturing process they undergo gains them unique reliability, strength and high performance far exceeding those of other Pb-Ca plates used in similar looking products. Using our specially designed Absorbed Glass Matt (AGM) between the VMAX plates, adds to its many physical and electrical advantages that make it superior to the Wet Lead Acid Batteries. This also maximizes the VMAX resistance to shocks and vibrations. Since the electrolyte is totally absorbed by the AGM, the VMAX is classified as "non-spillable and non-hazardous". A tough Tank seals and protects the tightly packed plates delivering the VMAX in a 100% maintenance-free package. Though VMAX Tanks are best known for their long life span, their capability to recover after repeated deep discharges is what makes them the favorite choice for any application.
====================================
Technical Details - 12 Volt 125Ah Group 31 AGM Deep Cycle Heavy Duty Battery
AGM Electrolyte Suspension System Custom Built Military Grade Alloys Maintenance free Operation Fast Charge Delivery Capabilities Extremely Low Self Discharge Rate Extreme Vibrations, Heat and Weather resistant Sealed Non-Spillable Non Hazardous Construction Maximum Power Density and Deep Cycle Capabilities

��� Brand Name: VMAX Solar
��� Model Number: VMAXSLR125
��� Item Height: 8.7 inches
��� Item Length: 6.8 inches
��� Item Width: 12.9 inches
��� Item Weight: 75 pounds

Includes carrying strap, military grade custom made plates, and are made here in USA.
Float Service Life span of 8 to 10 years. AGM with 99% recombination capabilities,
no dangerous fumes or gases.

https://www.vmaxtanks.com/SLR125-AGM-Solar-Battery-_p_38.html
https://www.amazon.com/Vmaxtanks-SLR125-Solar-Emergency-VMAX/dp/B004DR3IIC

To keep this battery charged am using a PG40S PWRgate:
http://www.universal-radio.com/catalog/hamps/2719.html
http://www.westmountainradio.com/product_info.php?products_id=pg40s

Output of this battery feeds an MFJ-4416B Supper Battery Booster so the battery
output is closer to the ac power supply output.... especially as the battery gets used
and output voltage starts to drop off.
http://www.mfjenterprises.com/Product.php?productid=MFJ-4416B

Fuses are between each section of the battery system: Input and output of 13.8vdc power supply,
pg40s, and each radio device connected to this power source.

So far so good. Looking forward to hearing what your home battery operated stations are using.

73 from Bill - WD8ARZ
South� Bend, Indiana


ray2amazon@...
 

Hi Bill,

I have done something like that for over 11 years now. My VHF/UHF first set up was a 3 AH battery from a security system, the PG40S, and a home made analog 12V 2A power supply that I designed and made in college (too many years ago) and eventually I was given an Astron RS-4A power supply. I bought a PowerSonic 8A battery in 2011 and last year I picked up an 18 AH battery from a security panel change out. All have Anderson pigtails connected for fast change outs. I normally only have one radio on so I do not worry about the voltage drop all that much and prefer the slightly longer run time instead (booster does have losses).

Sometimes I forget to turn on the power supply and call a net for about 40 minutes on battery (Usually 50 W) and it only takes about an hour for that little 4A supply to charge up the battery. For most of the repeater nets I can run 5 W if I think of it, for which the battery will last a long time. The simplex nets take a bit more power (50) to reliably get into some stations.

Now my HF station has a similar set as yours, but I use a 15A supply, a 54 AH AGM Werker battery (good for about 6 hours of calling CQ at 100 Watts out when portable), and a N8XJK Boost Regulator. After about 9 years I am finally working on a solar panel setup for when I go car portable (need to test it out) so I can go longer than 6 hours. I am on my second battery in 9 years.

That 125 AH battery should last you for a week or three of power outage depending on how often you are net control, what power level you need to use, and how busy the net is.

Oh, my PG40S setup - ON the VHF/UHF system the power supply to PS, OUT is not used, BAT goes to a powerpole block and then to the battery and the radio. The HF system is similar except that everything is tied directly to the battery and I have extra pigtails for other 12V devices coming off the battery. Fuses of course........

Ray
K7RFW