Replacing a 55 amp converter with a 45?
MY new trailer came with a WFCO 55 amp converter. My old trailer has a Progressive Dynamics 45 amp converter with a charge wizard. I want put the PD unit in my new trailer and the WFCO in my old. Shou...
Forum Discussion
jrnymn7 wrote:
Understood, Niner. And I guess I should have prefaced that the idyllic 1:1 ratio is a max charge rate, not necessarily an obtainable one.
BTW, does anyone know how many amps can realistically be accepted, on say a 430Ah bank, at 50% dod?
My ugly graph shows 70 amps on 220 with some constant amps time to it. That means you get the same time and curve with 140amps on 440AH. (which I do)
You can go higher but it means you will have a very short time before hitting that acceptance rate curve where it goes vertical on the left so there is no point going higher. The taper then is a vertical dive at that end of the curve. Diminishing returns.
The battery acceptance rate curve is its "natural acceptance rate" If you try to use more amps than that it just goes off as heat. If you use less than that, you are just wasting generator time. the amps get real low and the time long for that 90-100 part and that gives time for the "quality" of the recharge to settle in. That is also when the SG catches up right at the end too. See the SG lag drawing here for the recharge side:
http://www.engineersedge.com/battery/specific_gravity_battery.htm
