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</head><body style="color: rgb(0, 0, 0); background-color: rgb(255, 255,
255);" text="#000000" bgcolor="#FFFFFF">Hey Dave and Wrenches,<br>
<br>
This is why now I always install a pre-charge circuit for Magnum's and
other inverters - especially on a Lithium pack with a BMS. A momentary
on-off switch and 50 watt 20 ohm resistor - $20 worth of parts = a
lifetime of less stress on main breaker - inverter caps and battery
BMS. I recommend it for any inverter over 2 KW. Many LiFePO4 BMS's
will shut down when sensing that much inrush so it's a must on many
systems.<br>
<br>
Best,<br>
<br>
Jeff Clearwater<br>
Village Power Design<br>
<br>
<span></span><br>
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<div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#909AA4"><span style="padding-left:6px">June
8, 2021 at 6:01 AM</span></font></div> </div></div>
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p
class="MsoNormal">Is a Magnum MM1524AE inverter/charger repairable and
if so by whom? <o:p></o:p></p><p class="MsoNormal">It failed after being
reconnected to a battery bank, the typical small spark at the battery
terminal when being reconnected was accompanied by a popping sound in
the Magnum. Killed the Magnum.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p
class="MsoNormal">Dave Palumbo<o:p></o:p></p><p class="MsoNormal">Hyde
Park, VT <o:p></o:p></p></div>
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