Battery Gr 31 AGM Unfamilar Territory
This is where my age really shows. Looks like the 55 amp WFCO didn't show. That leaves me with two CheapOWatts to recharge a group 31 AGM. If that AGM can eat more than 60 amps at a helping, I n...
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Ahh, you just need to teach your brain to twiddle the voltage pot in your sleep is all.
;)
So how are the cheapowatts to be engaged? Are you going to just set their voltage to Lifeline's 13.3v float at 77F?, and run cpap and other gizmo off inverter and AGM.
When power goes out battery depletes, when power comes back on, cheapowatts buzz away until Lifeline agm requires less than 72.4 amps? well plus inverter loads. how much is that? the inverter load powering the Cpap?
Depletion below that threshold might very well happen before the chreapowatts release the magic blue smoke.
I think my 27 Northstar might have lower resistance than the Lifeline, So I think it will gobble up more amperage than the 31 lifeline would, even if the lifeline weighs 6 Lbs more. Also my NS Agm Absv is 14.7v, My last read on the lifeline pdf said 14.3v at 77f AbsV.
I think you'll be okay. Extra fans /heatsinking couldn't hurt. I can help you out there when you next return stateside. I'm in North County SD.
Obviously rate of recharge will be slower after 13.3v is approached, but it should make it through the night. Then on awakening, if power has returned, you crank their pots to the max till battery reaches 14.3v, and 14 awg would then be your nemesis.
Not ideal, but certainly workable.
;)
So how are the cheapowatts to be engaged? Are you going to just set their voltage to Lifeline's 13.3v float at 77F?, and run cpap and other gizmo off inverter and AGM.
When power goes out battery depletes, when power comes back on, cheapowatts buzz away until Lifeline agm requires less than 72.4 amps? well plus inverter loads. how much is that? the inverter load powering the Cpap?
Depletion below that threshold might very well happen before the chreapowatts release the magic blue smoke.
I think my 27 Northstar might have lower resistance than the Lifeline, So I think it will gobble up more amperage than the 31 lifeline would, even if the lifeline weighs 6 Lbs more. Also my NS Agm Absv is 14.7v, My last read on the lifeline pdf said 14.3v at 77f AbsV.
I think you'll be okay. Extra fans /heatsinking couldn't hurt. I can help you out there when you next return stateside. I'm in North County SD.
Obviously rate of recharge will be slower after 13.3v is approached, but it should make it through the night. Then on awakening, if power has returned, you crank their pots to the max till battery reaches 14.3v, and 14 awg would then be your nemesis.
Not ideal, but certainly workable.
