[RE-wrenches] More from NWES - looking for a 2 volt load tester

Dana dana at solarwork.com
Thu Dec 3 12:10:13 PST 2009


Thought I would pass this along

 

Dana Orzel

 

Great Solar Works, Inc

www.solarwork.com

E - dana at solarwork.com

V - 970.626.5253

F - 970.626.4140

C - 970.209.4076

 

I will be the shift in how the world uses power! - Dana Orzel

 

From: Rob Shappell [mailto:rob at nwes.com] 
Sent: Thursday, December 03, 2009 8:45 AM
To: 'Dana'
Subject: RE: [RE-wrenches] 2 vdc load testers.. Off list

 

Hi Dana

 

Two of my contacts within EnerSys have just told me that they have never
seen a 2 volt load tester.

 

Steve Willy of Backwoods Solar showed me that if I took a 1200 watt 120 volt
space hearer and cut the element into 10 equal lengths wired in parallel
across buss bars I would have a 12 volt 1200 watt heater. I switched each
element so I could increase or decrease load. I had to install muffin fans
because the element would get much longer when hot than cold. Eventually I
built several of these heaters into a small rolling tool box with a
trimetric, trailer lights, and even a reading lamp so I could take readings
without powering up the shop lights. I used it for load testing the surplus
AGM batteries that we sold years ago. Funny, I can't remember what happened
to that load bank.

 

If you were to cut that same heating element into 60 equal lengths you would
have a 2 volt 1200 watt heater. I found that the ribbon type of element was
easier to work with vs. the coil type. These heaters are cheap in second
hand stores..especially in the summer.

 

 

Rob

 

From: Dana [mailto:dana at solarwork.com] 
Sent: Wednesday, December 02, 2009 1:04 PM
To: Rob Shappell
Subject: FW: [RE-wrenches] 2 vdc load testers.. Off list

 

 

 

Do you have a source on a 2 volt load tester?

 

 

Dana Orzel

 

Great Solar Works, Inc

www.solarwork.com

E - dana at solarwork.com

V - 970.626.5253

F - 970.626.4140

C - 970.209.4076

 

I will be the shift in how the world uses power! - Dana Orzel

 

From: Dana [mailto:dana at solarwork.com] 
Sent: Tuesday, December 01, 2009 3:13 PM
To: Rob Shappell
Subject: FW: [RE-wrenches] 2 vdc load testers.. Off list

 

Do you have a source on a 2 volt load tester?

 

Dana Orzel

 

Great Solar Works, Inc

www.solarwork.com

E - dana at solarwork.com

V - 970.626.5253

F - 970.626.4140

C - 970.209.4076

 

I will be the shift in how the world uses power! - Dana Orzel

 

From: Travis Creswell [mailto:tcreswell at ozarkenergyservices.com] 
Sent: Tuesday, December 01, 2009 2:31 PM
To: dana at solarwork.com
Subject: RE: [RE-wrenches] 2 vdc load testers.. Off list

 

Why not just make one yourself?  Ohm's law and all that good stuff.   You
could even make a configurable load bank like the utility switch gear
testers I've seen use.  They all look homemade to me.

 

Just label it clearly because if someone puts it on a 12v battery you could
have a 1000 amp load tester for a second or two anyway.

 

Best,

 

Travis Creswell

Ozark Energy Services

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Dana
Sent: Tuesday, December 01, 2009 1:06 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] 2 vdc load testers

 

Does anyone have knowledge of a 2 volt battery cell load tester? 12 volt we
have and have not been able to find a 2 volt tester.

 

Dana Orzel

 

Great Solar Works, Inc

www.solarwork.com

E - dana at solarwork.com

V - 970.626.5253

F - 970.626.4140

C - 970.209.4076

 

I will be the shift in how the world uses power! - Dana Orzel

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