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Blowing 150 amp fuse ( battery relocated )
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<table border="0" cellpadding="1" cellspacing="1" width="99%" align="center"> <tr bgcolor="#000000"><td> <table border="0" width="100%" cellpadding="3" cellspacing="0"> <tr bgcolor="#000099"> <td colspan="2" align="left"> <font size="2" color="#ffffff" face="Verdana, Arial"> <b>T O P I C R E V I E W</b> </font></td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>BayAreaNotch</b> <br /><small>Member # 12248</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2016,6,9,19,29,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I recently did a battery relocation on my notch. I ran a stranded 0/2 awg welding wire from the solenoid to the trunk with an inline 150 amp fuse in between. I went to get the car washed and forgot to turn off my fan. Its a manual fan with toggle switch. (Still need to get into habit) I tried turning the car on. It cranked over a bit and then blew the 150 amp fuse. I replaced the fuse and drove it for a while to charge the battery up a bit. I let it sit for about an hour and when trying to turn it on it cranked over like a low battery and blew the 150 amp fuse again.<br /><br />I am running a 3G alternator. Will i need a higher rating fuse because of the 3G alternator.? Maybe 200 amp? The car turned on no problem and never blew the fuse until the battery went low. Any suggestions? <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>wilit</b> <br /><small>Member # 3367</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2016,6,9,22,16,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Starters surge at 200A-250A with a constant draw of 125A-150A. Also, you need to use a circuit breaker, not a fuse. You typically want to size a fuse/breaker so that it has a 20% reserve. So in this case, with a 250A surge load, you'd want to probably go with a 300A breaker.<br /> <br /> <small>[ 2016-07-09, 10:17 PM: Message edited by: wilit ]</small> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>BayAreaNotch</b> <br /><small>Member # 12248</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2016,6,10,10,19,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by wilit:<br /><strong> Starters surge at 200A-250A with a constant draw of 125A-150A. Also, you need to use a circuit breaker, not a fuse. You typically want to size a fuse/breaker so that it has a 20% reserve. So in this case, with a 250A surge load, you'd want to probably go with a 300A breaker. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Sounds good. I will be on the look out for a 300 amp circuit breaker. Im not quite sure I've seen those before. Do they sell them at any auto store? So a 300 amp breaker will pop if I have a short on the positive wire some where in the body? <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Boosted_DropTop</b> <br /><small>Member # 10728</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2016,6,10,12,34,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Go to any audio shop they should have them in stock. <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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