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Quantar CPN1048G Power Supply

 

Friends,
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My 125W VHF Quantar has a CPN1048G Power Supply in it, but my documentation has nothing on that model power supply.? I found some threads in this group with tables that suggest this unit has a battery charger feature and that is about all I know.? It does have what looks like a high-power DC edge connector on the back panel, but no DC harness / pigtail.? Thus, I have the following questions:
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1. Does anyone have any documentation on it to share?
2. Does it have the battery revert feature and if so, does it charge the battery?
3. What type of battery would work with it?
4. What is the proper DC harness for it?
5. Any other advice on it?
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Thanks!
Jeff KC8VFN
 

That supply has battery revert and will charge a 28v battery and the CPS has a couple of options for batteries. I don't have the software running to see but I think its lead acid or AGM type. Not sure what the harness P/N is but they show up on eBay for reasonable prices. If the fan intake gets dusty do not try to clean the dust off while the PS is running. When the fans inhale the dust the PS can fail and I've seen this first hand.?
 

What battery do folks usually use for this purpose?? Does it truly need to be a 28V and opposed to a 24 volt battery for safe, reliable operation?? Other than cordless drills and such, 28V batteries seem to be rather rare and expensive.
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Thanks!
Jeff KC8VFN
 

I've had one running with a pair of 12V 90AH AGM batts for a couple of years and I need to visit the site to check battery condition, otherwise its held up through a few power outages. I've also run one temporarily from a pair of Costco 100AH deep cycple batts. You need to calculate current draw off battery and size your battery to last through a worst case power outage or a trip to the site to deal with it and that could amount to a lot of battery needed. I program my Quantars for 25W when on battery power to extend batt life a little.?
 

28 volts is the normal charging voltage for a 24 volt battery bank... Just like 13.8 is the normal charging for 12 volt battery?

Chris WB5ITT?

On Sat, Mar 29, 2025, 3:17 PM Mike via <prcradio=[email protected]> wrote:
I've had one running with a pair of 12V 90AH AGM batts for a couple of years and I need to visit the site to check battery condition, otherwise its held up through a few power outages. I've also run one temporarily from a pair of Costco 100AH deep cycple batts. You need to calculate current draw off battery and size your battery to last through a worst case power outage or a trip to the site to deal with it and that could amount to a lot of battery needed. I program my Quantars for 25W when on battery power to extend batt life a little.?
 

Lead acid and AGM have different charge profiles. Something like 14.2V for most of the charge then a float at around 13.4V for lead acid and 14.7V charge 13.8V float for AGM. The Quantar CPS has battery options for Lead Acid_LIN, Lead Acid_NON and NiCad. NiCad would definitely be a different charge profile from Lead Acid. I think the LIN and NON is simple charging vs having a periodic maintenance charge added or similar.?

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