Parallax Converter
Hi - we have a new(er) RV with a Parallax converter - series 7300. Can I leave this plugged in (charging the battery) 24/7? In our trailer we had a WFCO converter and I replaced it with a Progress...
Forum Discussion
Phil, thanks. That reminded me of this, which I had forgotten already :( Confirms your notion, para C. He did say to give them a pulse type recondition once a year even so. (A Vector portable has that feature)
(from BFL13 last month.)
" I talked to the UPG tech support about their AGM 121 battery specs and got some good info. (Very up to speed guy to talk to! )
A. 30% charging limit is to prevent venting--you can have "overcharging" from over voltage and/or from over current
He suggested two batts with a 55 amp converter.
B. Discharge is safe up to say 80a area for the 100AH (20 hr rate) but short. He says better have two batteries. He said higher discharge amps like into the 100s would be really bad for it. Don't do that.
C. Lower voltage charging is ok as it will still charge up, just take longer. It will not result in an incomplete recharge like with flooded batts.
D. He said they will stratify on a long term float but that will clear up on a recharge. No equalizing with high voltage with AGMs! He likes the pulse chargers for that job. He mentioned the CTEK 7002 that does that pulse thing. (14.8, stop, 14.8, stop, 14.8, stop is how it pulses) He likes the Vector chargers too. Recondition mode on them is that pulse thing. Don't do the high voltage Equalize with them though on an AGM
He said where you would do a recondition once a month on your flooded batts, once a year would be enough for the AGM (but do that)
E. He said when full they will still be accepting a couple amps if the float voltage is too high, but did not really say zero amps meant you were full, I suppose because you would not see that (unless you have Phil's set-up I guess)
I did not ask about the slap in the face thing mentioned before when they won't recharge fully after a few cycles. I suppose that would be incomplete cycles."
(from BFL13 last month.)
" I talked to the UPG tech support about their AGM 121 battery specs and got some good info. (Very up to speed guy to talk to! )
A. 30% charging limit is to prevent venting--you can have "overcharging" from over voltage and/or from over current
He suggested two batts with a 55 amp converter.
B. Discharge is safe up to say 80a area for the 100AH (20 hr rate) but short. He says better have two batteries. He said higher discharge amps like into the 100s would be really bad for it. Don't do that.
C. Lower voltage charging is ok as it will still charge up, just take longer. It will not result in an incomplete recharge like with flooded batts.
D. He said they will stratify on a long term float but that will clear up on a recharge. No equalizing with high voltage with AGMs! He likes the pulse chargers for that job. He mentioned the CTEK 7002 that does that pulse thing. (14.8, stop, 14.8, stop, 14.8, stop is how it pulses) He likes the Vector chargers too. Recondition mode on them is that pulse thing. Don't do the high voltage Equalize with them though on an AGM
He said where you would do a recondition once a month on your flooded batts, once a year would be enough for the AGM (but do that)
E. He said when full they will still be accepting a couple amps if the float voltage is too high, but did not really say zero amps meant you were full, I suppose because you would not see that (unless you have Phil's set-up I guess)
I did not ask about the slap in the face thing mentioned before when they won't recharge fully after a few cycles. I suppose that would be incomplete cycles."
