Should I Change My WFCO Converter?
Opinions have often been expressed, both on this and other RV forums, that most stock RV converters are inadequate to properly charge and maintain batteries and are often of poor quality. It is frequ...
Forum Discussion
AH64ID wrote:jrnymn7 wrote:
AH64ID,
Your PD dropped into float when the bank was still accepting ~15 amps, at 14.4v. This is before 90%, not well past. BFL's charts show about a 5a/100Ah marker for 90% at 14.5v. So, 14.4v would be less than 5a/100Ah, so maybe 12a. Nevertheless, that is a really good charging profile.
That wasn't float, but well above is probably an exaggeration.. My apologies.
Per Lifeline recharge takes 102-110% of the used amp hours, at voltage drop to 13.6 I was above 102% but not yet to 110%. I was in the window for a 90% SOC, but no way to know without stopping the charge and looking at a resting voltage.
In general use I have noticed the post generator charge voltage at 4 hours is well above 90%.
ooops, I'm so use to thinking of 13.6v as a float charge, even when it is an abs charge. I guess my first and only experience with a converter makes me not take charging at 13.6v seriously. As a full time boondocker, it's simply not an option.
Yes, I had crunched the numbers, roughly, and realized you had seemingly replaced 150Ah's with close to 170Ah's, so perhaps even a little more than 10%. But a while back, Mex had linked me to an article about battery efficiency, and it really put things into perspective as to how much current simply goes to waste as heat. Not funny when a generator is humming away!
As for determining SOC, I have found the Trimetric meter to be quite accurate at tracking actual Ah's replaced; though it is quite pricey.
