| Versions |
  |
|
| Author |
 Topic  |
|
Kris2005
USA
271 Posts |
 Posted - 06 nov. 2006 : 14:21:41
|
Price wasn't the biggest factor for me. I would say I was motivated by:
1. I just wanted to do it! I love fixing things...
2. I hate shipping equipment unless it is absolutely necessary! It is risky and time consuming.
3. I wanted to write the manual and post it on this site so others could benefit.
4. Price? It was very inexpensive so why not to do it?
|
 |
|
|
atostes
Brazil
8 Posts |
Posted - 12 nov. 2006 : 19:14:56
|
| Please Kris, I miss the antenna position. The gold part on it needs to contact with the main board? |
|
|
|
Kris2005
USA
271 Posts |
Posted - 13 nov. 2006 : 16:19:52
|
| I am out of the country now and do not have access to my GPS. However, if I recall it correctly there are two wires that are connected to the antenna. I do not think antenna needs to touch the board... |
|
|
|
atostes
Brazil
8 Posts |
Posted - 13 nov. 2006 : 23:27:14
|
| Thanks Kris. I already installed the antenna just fitting it on top of the box. It does not need to contact the main board... |
|
|
|
fishing2153
5 Posts |
Posted - 15 nov. 2006 : 03:33:43
|
| Kris2005 , I have a question. First thanks for the excellent step by step to replace the battery. My C330 battery went totaly dead, I installed a new battery and it powers up fine but will not locate satellites even after 1 hour time. Could I have the antenna in wrong? Thanks |
|
|
|
Kris2005
USA
271 Posts |
Posted - 15 nov. 2006 : 09:09:55
|
| It is possible. I would say first check the connectionts to the antenna. Make sure the wires are OK. Second, try to reset the unit. My unit located the sattelites after 2 - 3 minutes. Try the "soft" reset by pressing the pin inder faceplate, if it does not help try the "hard" reset by pressing bottom right corner why switching the unit on. Hope it helps. |
|
|
|
Hootch
3 Posts |
Posted - 15 nov. 2006 : 19:03:42
|
I'm concerned about the small circuit board that connects between the battery terminals on the original battery. In your replacement procedures, you don't mention it.
Does this board have to do with charging the battery? Is it some kind of safety device? It appears when you replaced the battery, you permanently removed this little circuit.
I replaced my battery and tried keeping the tiny circuit board but when I was through, I had an open circuit between the negative battery lead and the black wire going to the Garmin. It has to be within that tiny circuit board, which is why I'm concerned it may be a safety device. Any thoughts? |
|
|
|
Kris2005
USA
271 Posts |
Posted - 15 nov. 2006 : 22:11:50
|
Hootch,
i replaced batteries in two of my C320. There was no additional circuit board. I am not sure what did you mean now. What model do you have? Do you have C320?
I know that lithinm batteries quite often have protection circuits. From what you describe it sounds like you had one. How did it look like? Where it was placed? Do you have any pictures? |
|
|
|
Hootch
3 Posts |
Posted - 16 nov. 2006 : 04:32:30
|
I have the C330. I did not take any pictures, but the tiny board is about 3mm wide and 10mm long. One end was soldered to the (+) lead of the battery and the other end was soldered to the (-) lead. The wires that carry power from the battery to the GPS unit were soldered to two spots near the center of the little board.
The board was located under the piece of thin black tape that runs along the battery lead. You can see the piece of tape in your picture that shows the old battery next to the new battery.
I'm not sure, but I think it may be some kind of thermal protection. Do you think it is safe to operate the unit without this board? I've bought the 2400mAH battery described earlier in this post.
Thanks |
|
|
|
Kris2005
USA
271 Posts |
Posted - 16 nov. 2006 : 13:54:55
|
Hootch,
you got me. I cannot recall this small board.....but it might be a current limting board. This is quite common in devices powered from lithium batteries. They are either external or built in to devices. They act only in case of a short circuit. |
|
|
|
fishing2153
5 Posts |
Posted - 18 nov. 2006 : 02:52:14
|
| Kris, I tried the "hard" reset. You really know your stuff, it works great now! Thanks!!!! |
|
|
|
fishing2153
5 Posts |
Posted - 18 nov. 2006 : 02:54:54
|
| Hootch, I replaced the battery in my c330 and do not have the small circuit board you are talking about. The unit works fine without one,..... |
|
|
|
fishing2153
5 Posts |
Posted - 27 nov. 2006 : 00:23:48
|
quote:
Originally posted by Point of Interest
Kris, I wonder if you could include the tool list in the instructions. I'd have a heatsink clamp in there for safety's sake. If you solder quickly, you won't heat the cell. But if someone with much less soldering experience heated up the cell, it could explode.
And the heatshrink procedure needs care for the same reason.
When you disassemble, you should take note of how the GPS antenna slots into the unit. When I put mine back together, I tried a few orientations before I got it right.
Otherwise, an excellent guide (that could have saved me a bunch of money if I had read it when you first wrote it!)
|
|
|
|
Hootch
3 Posts |
Posted - 27 nov. 2006 : 03:35:52
|
quote:
Originally posted by fishing2153
Hootch, I replaced the battery in my c330 and do not have the small circuit board you are talking about. The unit works fine without one,.....
Guys,
Thanks for the help. I've done some research and found several "Battary protection modules" for Li-ion batteries. Although none look exactly like the one in my GPS, I'm fairly sure that's what it is.
I guess because of the posssibility of a Li-ion battery becoming unstable and overheating, these little modules are being incorporated as a safety feature to help prevent this. Here is a link that talks about them.
http://www.aplusproducts.com/gallery/products/batteries/protection_modules.pdf
They are real cheap, so I got one in the interest of safety. |
|
|
|
Kris2005
USA
271 Posts |
Posted - 27 nov. 2006 : 14:33:20
|
Hootch,
Li-ion batteries have very low internal impedance so in case of a short circuit there is a possibility of relatively high current flowing and damaging the instrument or worse starting a fire as the battery has a large amount of energy. The circuits you pointing to can be fitted as a separate board or be built in to the main board.
Thanks for doing the research. By-the-way which one did you get? And where did you buy it from? |
|
|
|
Topic |
|
|
|
| This page was generated in 1,75 seconds. |
 |
|
- 
- 
C320 Battery replacement – DIY
