how many watts do you need?
It would need to make 20 amps with the input as low as 72 volts. The voltage needs to be at least 12 volts when delivering 20 amps. It would need to be able to accept up to at least a 120 volts on the input side to be safe when charging.how many watts do you need?
That has potential, it says it works from 75 volts to 130 volts and I can live with a little higher minimum. Perhaps I should explain what I have in mind...Been using this one with no troubles.
HWZ Series DC/DC Converter 96V to 13.5V 25A
240 watts reliably at the minimum input voltage. The standard Iota DLS line doesn't make any amps below 95 volts because it is really a 120 volt AC charger with a little headroom built in for line voltage sag (because that's common at RV parks.) I've got a real nice DLS-55 and I do like them above 120 volts input. At least they seem to brown out gracefully, unlike an unloaded Todd PC-LV.so, 240W plus some overhead, so more like.....300W.
I use vicor for my stuff, there's lots out there. I know Iota makes good stuff. No experience with Curtis or Kelly though.
your range might go down a little, but I bet your performance won't drop much considering the weight loss.....If I go with a 32 cell pack I can put the entire pack in the floorboard boxes that run under the front seats and rear seat floor. It would look real clean but the performance would be less.
I'll grant you this post but do tell us a bit about yourself/your company.An easy and compact solution is available here:
This will take an input of 72-144Vdc and give you a stable isolated output of 12Vdc. The site has a host of other converters too
MODS: This is not spam - it may be slightly promotional but it directly answers the question posed in the OP