Search: Posts Made By: kotterr
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07-18-16, 06:55 PM
Replies: 10
Views: 2,506
Posted By kotterr

I suspect the only reason it's working right now...

I suspect the only reason it's working right now is because the actual voltage being drawn is far less than the nominal voltage.
07-15-16, 10:11 PM
Replies: 10
Views: 2,506
Posted By kotterr

Well, it's running consistently quite well at a...

Well, it's running consistently quite well at a nominal 180 Watts (using car charger plugs, not the system I wanted to use). However, it's a bit too bulky and I will likely be replacing the system...
07-14-16, 09:01 PM
Replies: 10
Views: 2,506
Posted By kotterr

So can I safely replace that 5A fuse with a 15A...

So can I safely replace that 5A fuse with a 15A fuse, or will the wires of the cig lighter burn out?

Another question: can I just put a piece of metal instead of the cig lighter fuse in the cig...
07-13-16, 11:02 PM
Replies: 10
Views: 2,506
Posted By kotterr

I've been converting amps and volts to watts to...

I've been converting amps and volts to watts to compare it to my system, which is 12 volts. I have a bunch of devices working at anywhere from 1 AMP at 5 V to 6 AMPs at 12 volts. They will all be...
07-13-16, 10:12 PM
Replies: 10
Views: 2,506
Posted By kotterr

f5al250v fuse: good for 180 watts at 12 volts?

I have a car cig lighter socket with a f5al250v fuse in it. Internet research shows a pretty high 1,250 watt capacity (5 amp x 250 v). Can this thing handle 15 amps at 12 volts? The item description...
07-12-16, 11:39 PM
Replies: 8
Views: 510
Posted By kotterr

Also, I'll need an enclosure. Have you guys ever...

Also, I'll need an enclosure. Have you guys ever used legos for this? Any interesting ideas?
07-12-16, 10:40 PM
Replies: 8
Views: 510
Posted By kotterr

6839568394 Links: Dual USB 2 Port DC...

6839568394

Links:

Dual USB 2 Port DC Car Charger 2 1A Adapter for Samsung Galaxy Applies iPhone | eBay...
07-12-16, 09:49 PM
Replies: 8
Views: 510
Posted By kotterr

Not really what I was looking for. I know exactly...

Not really what I was looking for. I know exactly what the voltages and amperages of the devices are and those devices are not going to change any time soon.

Also it looks like, based on the YT...
07-12-16, 09:19 PM
Replies: 8
Views: 510
Posted By kotterr

Step up or step down voltage?

I have a bunch of devices that I need to use, but the power source is at 12 volts. Where do you guys get your components (preferably inexpensive) for little projects like this? Unfortunately, the...
07-07-16, 10:07 PM
Replies: 12
Views: 3,411
Posted By kotterr

So the batteries lasted a while, but then failed...

So the batteries lasted a while, but then failed suddenly. I used a voltmeter and confirmed that the device was NOT charging the cells whether I had 3 cells or 4 cells. I put 3 cells in there + 1...
07-06-16, 11:27 PM
Replies: 12
Views: 3,411
Posted By kotterr

The only thing I did not connect is the temp...

The only thing I did not connect is the temp sensor. Will this cause any problems?
07-06-16, 09:47 PM
Replies: 12
Views: 3,411
Posted By kotterr

Finally got it to work! There were two issues: ...

Finally got it to work! There were two issues:

First, 3 cells + a dummy was not enough voltage. It needs 4 AA batteries at 1.25 each for 5 volt total capacity Below that for some reason does not...
07-05-16, 07:52 PM
Replies: 12
Views: 3,411
Posted By kotterr

Alligator clips. I tested with a voltmeter and...

Alligator clips. I tested with a voltmeter and the voltage was there.

I realize this is not reliable for long-term use, but I was just trying to test it out. The voltmeter confirmed there was...
07-05-16, 05:18 PM
Replies: 12
Views: 3,411
Posted By kotterr

Just tried a 3.7 V Lion LGIP-580NV that had about...

Just tried a 3.7 V Lion LGIP-580NV that had about 4V in it. Unit will not start. The only difference is that this cellphone cell has a little less capacity (9% less) but this wouldn't stop the GPS...
07-05-16, 01:55 PM
Replies: 12
Views: 3,411
Posted By kotterr

I'll be sure to measure the voltage at the...

I'll be sure to measure the voltage at the harness terminals near where they connect to the GPS unit.
07-05-16, 01:14 PM
Replies: 12
Views: 3,411
Posted By kotterr

So should a 3.7 volt Lithium Ion cellphone...

So should a 3.7 volt Lithium Ion cellphone battery work? Because that also didn't work, but I guess I could try again. It works in the phone.
07-05-16, 11:05 AM
Replies: 12
Views: 3,411
Posted By kotterr

https://www.newpower99.com/Magellan_RoadMate_9212T...

https://www.newpower99.com/Magellan_RoadMate_9212T_LM_Battery_Replacement_Kit_p/magellan%20roadmate%209212t-lm.htm

This one has an image with the harness:...
07-05-16, 01:19 AM
Replies: 12
Views: 3,411
Posted By kotterr

Magellan not working with anythng but original battery

I am trying to wire a Magellan GPS to work with a set of 1.25 NIMH batteries, but the darned thing just won't work with them. I checked the polarities, measured the voltages. It seems the original...
Replies: 2
Views: 564
Posted By kotterr

Help identify connector

67937

First are the views from the sides, then the bottom is where the female receiving pins are (sorry, distorted, it's actually pretty straight).

It's a 3-pin connector attached (soldered) to...
Replies: 5
Views: 578
Posted By kotterr

I want something sturdy and powerful (or as...

I want something sturdy and powerful (or as powerful as a crank flashlight can be). I realize the components will be designed for other items and therefore size will be more than that of a retail...
Replies: 5
Views: 578
Posted By kotterr

It should be no bigger than 2'x1'x1'.

It should be no bigger than 2'x1'x1'.
Replies: 5
Views: 578
Posted By kotterr

Handheld crank flashlight

I want to make a handheld crank flashlight like the ones they sell, but I find the ones that are sold to be too lightweight and provide too little light. I have enough strength to turn the crank...
Replies: 7
Views: 410
Posted By kotterr

What does a water trap do?

What does a water trap do?
Replies: 7
Views: 410
Posted By kotterr

I just want to use an air drill at a slower rate....

I just want to use an air drill at a slower rate. I need to drill only part of the way through (precision work).

I found this: Husky 1000 055 002 in Line Air Regulator 1 4 in F NPT K475 | eBay...
Replies: 7
Views: 410
Posted By kotterr

Pressure or volume regulator?

Which one is this?

1 4" NPT Inline Regulator Solid Brass Compressed Air Pressure Valve Tool New | eBay...
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