Paralleling Power Supply Units Made Easy ???
I am considering paralleling a couple of 20a variable adjustable psu's for 40a charging. According to what I have read on the world wide inter-web, it can be done quite easily, provided the following ...
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otrfun wrote:BFL13 wrote:I'm impressed! I like the modular/redundant approach you've taken with the use of the four B&D Vector smart chargers.
Yes they will add their amps if the battery bank will accept that many. EG, I use some Vector chargers together: a 40a, 35a, 35a, and a 20a to get 130a which is as much as my Honda 3000 can run with its 2800VA.
On four 6s with 458AH, that is 130/458 = 28% charging rate. Just right for a nice fast recharge :) Same charging rate on two batteries would be at 65a
If there was any doubt about being able to operate several converter/chargers in parallel without any issues, one only has to look at your system.
Now, instead of dragging out all those Vectors, I use a 100amper PowerMax (runs at 104a) installed by the batteries, the 40a VEC, and Solar (up to 15a but say it is at 10a for this recharge at 10am start of "allowed" gen hours at our usual campground), so that way I can get
104 + 40.4 + 10 = 154.4 amps. 154.4/458 = 34% charging rate which tapers the amps fairly soon, so mostly I just go with the solar and the PowerMax and not bother dragging out the VEC. Getting lazy! :)
