Originally Posted by Rawn77
...I believe Airstream is using a Parallax 7300 series unit which if I understand properly uses only a single stage battery charger...
a/s is using 2 different models/series of P-lax charger/converters.
my understanding is that they are both 2 stage chargers...
without know HOW you plan to use (or store) the trailer,
and HOW it will be equipped (solar, inverters, battery type /# )...
it's hard to opinion on changing the p-lax to something else.
with solar, 2 grp 27 agms, LOTS of camping (and boondocking) and plugged in 24/7 while NOT camping...
the p-lax unit in my stream lasted ~4 years and died.
worked fine for those years and provided everything needed from a c/c unit.
after it crapped out replacement was a 3 stage (bulk, kick down, float) unit with MORE amp capacity, as the solar and battery bank expands.
last issue is the warranty on the new stream and internals.