 Battery posts melted, My Boat |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| malcolm2 |
 May 21 2022, 09:17 AM
Post
#1
|
|
Advanced Member  Group: Members Posts: 2,738 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States 
 |
How did this happen?
Attached thumbnail(s) 
|
   |
 
|
| Superhawk996 |
May 21 2022, 10:04 AM
Post
#2
|
|
914 Guru Group: Members Posts: 5,726 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
|
Massive short?
Other plausible alternative is that there was a high resistance connection at each of those hollow terminals. Pulling high starting current across a high resistance connection will create a lot of heat that could have melted those hollow terminals. Power (i.e. heat) is P=I^2 * R = current (squared) x resistance So pulling something on the order of 100 amps to start across a seemingly small 2 ohm resistance ; Power (watts) = 100*100 * 2 = 20,000 Watts. |
 |
|
| porschetub |
May 21 2022, 02:23 PM
Post
#3
|
|
Advanced Member Group: Members Posts: 4,696 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Superhawk996 @ May 22 2022, 04:04 AM)  Massive short? Other plausible alternative is that there was a high resistance connection at each of those hollow terminals. Pulling high starting current across a high resistance connection will create a lot of heat that could have melted those hollow terminals. Power (i.e. heat) is P=I^2 * R = current (squared) x resistance So pulling something on the order of 100 amps to start across a seemingly small 2 ohm resistance ; Power (watts) = 100*100 * 2 = 20,000 Watts. (IMG:style_emoticons/default/agree.gif) nasty thing to happen in a boat this sort of thing causes many to burn up (IMG:style_emoticons/default/sad.gif) . |
|
|
|
| gereed75 |
May 21 2022, 02:33 PM
Post
#4
|
|
Senior Member Group: Members Posts: 1,239 Joined: 19-March 13 From: Pittsburgh PA Member No.: 15,674 Region Association: North East States
|
I’m with Hawk on this one regarding high resistance in connection. The ends of heavy cables on boats tend to get internal corrosion in the copper wires. When this happens they have very high resistance.
Cut the ends off of you cables. I bet that the copper wires are are all corroded/oxidized black. When this happens they will carry little current. |
|
|
|
| r_towle |
May 21 2022, 04:11 PM
Post
#5
|
|
Custom Member Group: Members Posts: 24,560 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
|
Year, make model?
You might only need power to the coil and fuel pump to get it running. Once running, start connecting the remaining circuits one at a time till you see a spark. The spark indicates a draw, too big of a draw, or a short. If boat has AC shore power, the inverter would be the first suspect. As you do this, learn how to Hotwire the boat, on the water, bare minimum required to get back to shore… |
|
|
|
| Tdskip |
May 22 2022, 06:14 AM
Post
#6
|
|
Advanced Member Group: Members Posts: 3,678 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
|
It does look like very high resistance
|
|
|
|
| Shivers |
May 22 2022, 07:56 AM
Post
#7
|
|
Senior Member Group: Members Posts: 2,327 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
Or a heavy load maybe. Did you add lights for fishing? Or added anything like a big entertainment system? Otherwise, the others are probably right about the cables.
|
|
|
|
| 930cabman |
May 23 2022, 05:35 PM
Post
#8
|
|
Advanced Member Group: Members Posts: 3,000 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
|
My guess would be poor connections that led to some arcing. Hope you get to the bottom of it, this is not pretty and it's a good thing you caught it when you did instead of the middle of the lake with a fire
|
|
|
|
| malcolm2 |
Jun 2 2022, 03:05 PM
Post
#9
|
|
Advanced Member Group: Members Posts: 2,738 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
|
Thanks to all..... This was a friend's boat. The mechanic thought maybe the starter caused it. He got some automotive type connectors added to the wires. The nite we went out the lake was "angry". Crazy waves in Nashville. all the bouncing and wing nut connectors...
I thought maybe the wing nut ones were loose. Maybe a combo of starter and loose connections. |
|
|
|
| MCShack |
Jun 2 2022, 03:36 PM
Post
#10
|
|
Member Group: Members Posts: 70 Joined: 7-March 21 From: Ohio, USA Member No.: 25,305 Region Association: Upper MidWest
|
Daaamn! Imma buy my next battery from the other company that still makes them.
|
|
|
|
| TROJANMAN |
Jun 2 2022, 04:16 PM
Post
#11
|
|
Looks nice in pictures......... Group: Members Posts: 5,240 Joined: 5-March 04 From: Colorado Member No.: 1,753 Region Association: None |
I have 2 boat batteries in my garage that look just like that. My guess is that there is a short somewhere, I am just not sure how to locate it.
|
|
|
|
| 930cabman |
Jun 2 2022, 05:26 PM
Post
#12
|
|
Advanced Member Group: Members Posts: 3,000 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
|
Being extra safe on the water cannot be stressed too much.
Guys/gals, please be careful and limit the amount of firewater brought aboard Every year we lose too many souls to the lakes/oceans/.... try your best to not be one |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 19th April 2024 - 06:28 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.