[RE-wrenches] Additional Battery Charger

[benn kilburn]

mick, bob,
funny you should mention using a magnum as the 'additional charger', the system owner just happens to still have a MS4448 on the wall from his original system  (we had upgraded his system to a FW1000 with 2 x VFX3648's back in the fall).
i hadn't even thought of using the magnum only as a charger, and the price is right!thanks for the suggestion, i'll look into this as a possibility.
Any other comments on my question about generator efficiency when fully loaded vs say half loaded?
cheersbenn

DayStar Renewable Energy Inc. benn at daystarsolar.ca780-906-7807 HAVE A SUNNY DAY




From: reellison at gmail.com
To: re-wrenches at lists.re-wrenches.org
Date: Thu, 17 Jun 2010 21:19:03 -0400
Subject: Re: [RE-wrenches] Additional Battery Charger



















Look
into the Magnum inverters as 2nd chargers, very good chargers with
generators.

 

I have
done this many times, in the case of failure of the other inverters for some
reason, run wires and be back up and running.

I think
the 4448 inverter is 60 amps @ 48 volts with an input of 16 or so amps AC.

 

Later,

Bob 

 





From:
re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of benn kilburn

Sent: Thursday, June 17, 2010 7:22
PM

To: Wrenches

Subject: [RE-wrenches] Additional
Battery Charger





 

G'day Wrenches,



 





 I'm looking for an additional
charger(s) to increase the charging capacity from the back-up 12 kW Onan
generator into the 1200 Ah battery.  Right now the generator's full
potential output is limited by the charging capacity of the two VFX3648's which
have a max charge output of 45A each.





 





The idea here is to use the generator to
its full charging capacity when it is running, taking in to consideration
that the generator will feed any AC loads before charging the
battery. 





 





Iota and IBE chargers have been suggested.
 Any comments on these or other makes?





 





Do all generator types (diesel, propane,
LNG, gasoline) run more efficiently when fully loaded?  or is this only
the case with diesel (so i've heard)?





 





thanks,





benn

DayStar Renewable Energy Inc. 





benn at daystarsolar.ca





780-906-7807 





HAVE A SUNNY DAY 





 





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