Jump to content

 

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Sign in to follow this  
nwwakesurf

Starter amperage draw

Recommended Posts

nwwakesurf

There was an old thread discussing starter current draw that suggested putting a clamp meter on the wire. I did that over the weekend and set the meter to record high and low. I got a high of 66 and low of -300. Figure that 66 is charging rate at idle and 300 was max draw for starter. Sound about right?  If yes I am a bit surprised at how high that draw is. The wire is 2 awg. Blue Sea wire size chart shows 2 awg only good for up to 120 amps. Even 2/0 awg is only good up to 200 amps. Chart stops at 2/0 awg. Still I’ve never had a problem. Boat is 2007 LSV with Hammerhead engine. 

Share this post


Link to post
Share on other sites
nwwakesurf

Nothing?

Share this post


Link to post
Share on other sites
MadMan

I'm no expert on starter current draw, but that number really doesn't surprise me.  Batteries are rated at twice that number for a reason.  Also, wire gauge/amp charts are typically for continuous current draw, measured in hours, not seconds.  Those cables probably get a little warm while starting.

All sounds normal to me.

Share this post


Link to post
Share on other sites
justgary

That sounds fine to me also, but the starting current may actually be higher if your meter pegged at 300.  How high will your meter go? 

Share this post


Link to post
Share on other sites
csleaver

If you are concerned about high amperage draw on your starter, you may want to do a voltage drop test to ensure all of your connections are trouble free.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.m2omarine.com/fckimages/pdf/ENGINE/11.pdf&ved=2ahUKEwjEpPr2tN_iAhUCnZ4KHbSBADYQFjAAegQIARAB&usg=AOvVaw12qqx3lEvOIi8d5pt-eCeO

 

Share this post


Link to post
Share on other sites
nwwakesurf

Thanks everyone.  I will check the meter and look at the voltage drop test.  Glad to hear that it sounds about normal.

Share this post


Link to post
Share on other sites
formulaben
On 6/5/2019 at 4:28 PM, nwwakesurf said:

There was an old thread discussing starter current draw that suggested putting a clamp meter on the wire. I did that over the weekend and set the meter to record high and low. I got a high of 66 and low of -300. Figure that 66 is charging rate at idle and 300 was max draw for starter. Sound about right?  If yes I am a bit surprised at how high that draw is. The wire is 2 awg. Blue Sea wire size chart shows 2 awg only good for up to 120 amps. Even 2/0 awg is only good up to 200 amps. Chart stops at 2/0 awg. Still I’ve never had a problem. Boat is 2007 LSV with Hammerhead engine. 

Pretty sure that is a rating for continuous load and not an intermittent one.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...