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Re: (ET) UPS

Jeremy,
I use a Tripp Lite PowerVerter Alternative Power Source (APS) 3636VR which can function as an extended run UPS system or as a mobile DC to AC power inverter that will recharge its battery source. This is pretty close to what you are looking at, minus the extra smaller 36v source. I have had this for approx 3 years and it works great...also used it to power my house a couple times for parts of a day. If I had to do it again, I would look at the 2400 watt version and see if Tripp Lite could modify it to run on 36v VS. 24v. The new multistage regulated chargers in these inverters are definitely better and more efficient than the Electrak original. 

Here is more info on my setup:

http://www.austinev.org/evalbum/471.html

http://www.ustow.com/Elec-Trak/Tims_E20/

Hope this helps.

Tim



jeremy gagliardi com wrote:


I've been toying with the idea recently of getting a medium size UPS that 
runs on 36VDC.  The idea is to get a unit with its own battery, but also 
has an external battery interface to hookup to my ET's battery pack for 
backup power to keep some computer/networking systems I have at home 
always on (my phone is VoIP, plus 2 servers and a PC).

I've been looking at several Tripp Lite models that are known to operate 
on 36VDC and have an external battery pack interface.

In particular, I have my eye on this model...
http://www.tripplite.com/products/product.cfm?productID=2664

I know UPS's always want to control the batteries attached to them, and thus will 
charge them when they get low.  I also know that in the various "hot swap" 
UPS models, that when batteries are disconnected, the UPS's still function without 
interruption.

My questions to the ET group are:
(1) Has anyone successfully used a UPS to recharge the big batteries of an 
ET?
(2) Is it better/worse than the stock charger in an E20?  With Landis 
controller?
(3) Does anyone know where to get quick disconnects for high gauge wire, 
required for a 36VDC external battery hookup?

Note, I have not looked at inverters, because the idea is that a UPS would 
remain functional (on main power) and have its own internal battery when 
the ET is disconnected and in use.  When the ET returns, at first the ET 
would recharge off the UPS, and when needed it would provide extended 
battery run-time for especially long power failures (such as the wires in 
front of the house being damaged, which has happened to me and caused a 4 
day outage).

(---------------------------)
mailto:Jeremy Gagliardi com
http://Jeremy.Gagliardi.com
(---------------------------)


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