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  Topic: Battery capacity test load
blues750

Replies: 2
Views: 3339

PostForum: AeroElectric-List   Posted: Sat May 30, 2020 5:13 pm   Subject: Re: Battery capacity test load
Finally received my 4 ohm 100W resistors to make up a resistive load for doing my battery capacity checks. I get 12.8A through the load and plenty of heating of the heat sink (so I added a fan, and a ...
  Topic: Battery capacity test load
blues750

Replies: 2
Views: 3339

PostForum: AeroElectric-List   Posted: Wed May 13, 2020 4:42 pm   Subject: Re: Battery capacity test load
Thanks Bob, once I get setup and gather some data, I'll post results.

Dave
  Topic: DC clamp meter
blues750

Replies: 10
Views: 8105

PostForum: AeroElectric-List   Posted: Wed May 13, 2020 10:02 am   Subject: Re: DC clamp meter
Bob, that's pretty clever. In my case how "fancy" should I go? For connections to the load from the battery, I was thinking of simply using two leads of #10 wire with alligator clips on b ...
  Topic: DC clamp meter
blues750

Replies: 10
Views: 8105

PostForum: AeroElectric-List   Posted: Mon May 11, 2020 4:54 pm   Subject: Re: DC clamp meter
Bob, finally able to do the calculation on how you get a 1 OHM equivalent resistor out of the four resistors rated at 4 ohms in parallel along with power dissipation through the resistors...what a bla ...
  Topic: DC clamp meter
blues750

Replies: 10
Views: 8105

PostForum: AeroElectric-List   Posted: Wed May 06, 2020 5:17 pm   Subject: Re: DC clamp meter
Bob, I cannot imagine how to go about doing the voltmeter method with an electrical dependent engine running...hence my plan...

Once batteries are charged my normal inflight electrical load is appr ...
  Topic: DC clamp meter
blues750

Replies: 10
Views: 8105

PostForum: AeroElectric-List   Posted: Mon May 04, 2020 9:12 am   Subject: Re: DC clamp meter
"Help us out with your mission."

Hi Bob, I simply want to put a typical inflight load on the fuly charged battery and perform the below method /test as my benchmark for battery capacity c ...
  Topic: DC clamp meter
blues750

Replies: 10
Views: 8105

PostForum: AeroElectric-List   Posted: Sun May 03, 2020 7:20 am   Subject: DC clamp meter
Looking for recommendations on a suitable DC clamp meter to do capacity checks on my EarthX batteries. Prices seem to be all over the place. Am curious what kind others might be having good experien ...
  Topic: Super-whizzy energy management systems
blues750

Replies: 15
Views: 9153

PostForum: AeroElectric-List   Posted: Thu Apr 30, 2020 10:13 am   Subject: Re: Super-whizzy energy management systems
Great discussion so far...hits close to home as I have a similar configuration on my EAB though I have incorporated OVP and a disconnect from the PMA. Additionally, the two EarthX batteries I have (E ...
  Topic: Revisiting a REALLY handy tool . . .
blues750

Replies: 4
Views: 3768

PostForum: AeroElectric-List   Posted: Fri Mar 27, 2020 12:09 pm   Subject: Re: Revisiting a REALLY handy tool . . .
LOL

"...You'll begin to feel sorry
for the wire and shrink..."

Thanks Bob
  Topic: Revisiting a REALLY handy tool . . .
blues750

Replies: 4
Views: 3768

PostForum: AeroElectric-List   Posted: Mon Mar 23, 2020 6:59 am   Subject: Re: Revisiting a REALLY handy tool . . .
I wish I had seen this early in my wiring endeavors! Related question to the topic...is there a "best" temperature setting for the heat gun when doing solder sleeve connections? Thanks for ...
  Topic: Solder sleeve review...
blues750

Replies: 6
Views: 5203

PostForum: AeroElectric-List   Posted: Sun Jan 06, 2019 8:11 am   Subject: Re: Solder sleeve review...
However, one's
sense of craftsmanship may dictate
that they should be cut open, cleaned
up and corrected.

Kinda what I was thinking... Embarassed Thanks to all who replied.
I have a another r ...
  Topic: Solder sleeve review...
blues750

Replies: 6
Views: 5203

PostForum: AeroElectric-List   Posted: Sat Jan 05, 2019 4:31 pm   Subject: Re: Solder sleeve review...
Thanks Bob! I did look at some NASA QC document with a few small pics regarding solder sleeve splices.

but...the question remains in my mind. Maybe something more definitive. Should I redo these ...
  Topic: Solder sleeve review...
blues750

Replies: 6
Views: 5203

PostForum: AeroElectric-List   Posted: Sat Jan 05, 2019 11:37 am   Subject: Solder sleeve review...
Hey Gang, here is a pic of a couple of splices I did with Ray-Chem solder sleeves. I overlapped the two wire ends under the solder band and then used a heat gun with reflector set at 650. Was wonde ...
  Topic: Open Barrel Crimp Tools
blues750

Replies: 1
Views: 2831

PostForum: AeroElectric-List   Posted: Sat Jan 05, 2019 11:22 am   Subject: Re: Open Barrel Crimp Tools
Bob, here is a pic of the crimp tool I used. As I dug the tool out to take a picture, It dawned on me that I had used this on 14ga wires. The tool is not suitable for that size wire. So, it seems re ...
  Topic: When / where to use dielectric grease?
blues750

Replies: 1
Views: 2259

PostForum: AeroElectric-List   Posted: Wed Jan 02, 2019 4:37 pm   Subject: Re: When / where to use dielectric grease?
Thanks Bob, I need to look at the crimping tool box to see what I used to do the crimps. As always, appreciated the insight!! Dave
  Topic: When / where to use dielectric grease?
blues750

Replies: 9
Views: 8672

PostForum: AeroElectric-List   Posted: Wed Jan 02, 2019 4:36 pm   Subject: Re: When / where to use dielectric grease?
OK, had a chance to remove the wires from the connector shell. I would like to think all my crimps looked like the "good looking crimp and wire" I cannot imagine I would have proceeded wit ...
  Topic: When / where to use dielectric grease?
blues750

Replies: 9
Views: 8672

PostForum: AeroElectric-List   Posted: Wed Jan 02, 2019 4:38 am   Subject: Re: When / where to use dielectric grease?
Here are a few pics of the connector in case anything can be determined by the pic. Will post pics of crimps when I remove wires and assess. Thanks for the input all. Dave
  Topic: When / where to use dielectric grease?
blues750

Replies: 9
Views: 8672

PostForum: AeroElectric-List   Posted: Tue Jan 01, 2019 12:54 pm   Subject: Re: When / where to use dielectric grease?
Gilles, I think you may be on to something! I likely "gobbed" on too much dielectric grease and prevented a good electrical connection as the grease heated up and spread over the metal to m ...
  Topic: When / where to use dielectric grease?
blues750

Replies: 9
Views: 8672

PostForum: AeroElectric-List   Posted: Tue Jan 01, 2019 9:49 am   Subject: When / where to use dielectric grease?
Recently, while inspecting the engine compartment after some routine maintenance, I noted a section of "browned and crispy" wire insulation. This particular wire was one of the 3 phase wire ...
  Topic: MANL's (current limiters)
blues750

Replies: 3
Views: 4863

PostForum: AeroElectric-List   Posted: Tue Jul 24, 2018 5:41 pm   Subject: Re: MANL's (current limiters)
Thanks for the reply Bob!
 
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