Jump to content

DC to DC 12 to 24 Volt charger


Recommended Posts

I’m looking for a replacement charger for my Bowthurster battery bank

The rest of the boats system is 12v with a step up charger to this 24volt bank

Do any of you know of a unit or is it possible to connect each of the batteries in the 24v bank to the 12v system so they can charge off that and still give 24v.

current unit that’s faulting as soon as I put power on is a Sterling BB122450 ie battery to battery 12v to 24v 50 amp https://sterling-power.com/products/battery-to-battery-chargers

Link to post
Share on other sites

I may have found the fault

I took it out yesterday and have it in my workshop, with a 12v battery connected to the in supply and connected to a battery charger and  two 12v batteries connected in to create a 24v bank I can now see the led lights that are not visible when installed in the boat.

It faulted straight away saying battery temp fault.

So I’ve removed the wire that is just coiled up in the battery box and other end connected to unit, now it’s working as per.

next question is should I just leave this disconnect or it’s a two core wire with a cap on end, can I get something similar here or fix it ?

Link to post
Share on other sites

Jon, it's not a capacitor on the end. It is a temp sensor. The sensor is normally glued to the case of a battery, or samwedged in between the cases of two batteries. It is quiet possible it is faulty. They only way to really know is to replace it. You can do without it. It is not a circuit that has a lot of current draw, so no huge temperature variances during charging.
If you ever needed to replace the Charge Unit, then go for the same thing again. They have a good reputation.

DutyFree, you may need to explain a little more. It is just a 24V Charger that uses the 12V Bank as the supply voltage instead of 230V mains.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

Link to post
Share on other sites

I emailed their website last night reply below 

They have replacement parts on their website, just not the exact same one.

Hi , we have never had a faulty temp sensor, no I don’t think there would be anyone with a spare one, you can buy from UK.    please note its not that important the product works fine without it , so you can take you time getting one, most people don’t fit them so if you ask around I am sure there are some in NZ

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.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  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.

×
×
  • Create New...