Mean Well power supply for my usage

jrnymn7 wrote:

Snowman9000 wrote:
To answers some of the questions and points raised:

-No equalization needed from this charger.
-120v current is a 15A dedicated circuit.
-Concerned about the notorious PD underperformance on Onan electricity. Will going to the 60A take care of that?
-Doesn't the Mean Well taper amps according to battery acceptance? Or does it keep pushing 40A, and the voltage runs wild?

AFAIK, all psu's are constant current, constant voltage, meaning; just like a so-called smart charger, when charging begins the current will hold steady, in constant current mode, at the units set limit (called current limiting), the volts will rise to your voltage setting, at which point the unit will switch to constant voltage mode, and the amps will indeed taper. All a 3 stage "smart" charger is, is a psu with preset (factory) limits, and an additional float mode.

The psu will have a max POWER output, i.e; 600 watts, which is a product of volts and amps, as I'm sure you probably know. If for instance, the psu is 600w and has a range of say 12-15v, and is rated for a max of 40a, then it would put out little more than 40a regardless of a lower voltage setting.

600w / 12v = 50a, but the psu has a limit as to its max.current out put.

And as with any charging source, the batts will have the final say when it comes to how many amps they will accept; realizing, of course, a higher voltage will accommodate higher amps throughout the charge cycle, until the batts amp reading levels out (becomes static) once full.

That's what I thought. It sounds perfect to me. Basically a charger that does a good job at bulk and absorption, with no ability to float at a lower voltage. For two hours on a genset, is there anything that can go wrong?

Sorry, I'm not familiar with the issue concerning onan and pd?

Just as well. No need to derail the thread, I probably should not have brought it up. Basically though, the PD converter sees the waveform of the Onan genset as a relatively low AC voltage. And that reduces the output of the PD in that situation. I think the common wisdom is to go up one size in the PD lineup, and that should make up for it. For the reasonable price of the PD9260, if it will pump 40A for at least two hours (assuming the batts can accept) while trying to hit 14.4v, on the Onan, I'd probably just go that route.