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<font face="Times New Roman, Times, serif">As a former EV builder,
the big question that comes to my mind is the battery type. Lead
acid is possible, lithium ion, not.<br>
<br>
If the EV has lead acid batteries, then a high voltage DC charge
controller will work. It will have to handle voltages in the 195
range to </font>equalize a 156 volt pack. If it is a sealed L-A
pack, then it will have to reach ~185V.<br>
<br>
The problem comes with the modern lithium ion batteries. They can't
just be strung together and bulk charged. They require intelligent
battery management systems, generally integrated into their AC
source chargers. Even a little overcharging can result in a very
expensive boat anchor. Worst case, a pricey road flare - the size of
your car. Finding an intelligent DC-DC converter based charger with
an integrated battery management system would be tricky - custom
work. Many dollars. Most of the high voltage cars have lithium
packs.<br>
<br>
Given the efficiencies of modern high voltage utility tied
inverters, your client isn't really losing a lot. He'd probably lose
as much through a DC charge controller.<br>
<br>
Hilton<br>
<pre class="moz-signature" cols="72">--
Hilton Dier III
Renewable Energy Design
Partner, Solar Gain LLC
453 East Hill Rd.
Middlesex, VT 05602
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