From: krw@nowhere.com   
      
   On Mon, 10 Aug 2015 13:18:01 +0000, AussieBarry   
   <0f8503901d844703eea1acecb7a4938a_1980@example.com> wrote:   
      
   >I've been given a 12v battery charger that doesn't have a cutoff on the   
   >boost mode, so there is a risk of boiling the battery if it gets left on.   
   >I was wondering if this would be very difficult or expensive to set up?   
   >I'd assume that it would be current dependent as a voltmeter would be   
   >testing the charge voltage as opposed to the battery voltage.   
      
   No, a lead-acid battery charger is a voltage mode device.  It will   
   current limit at some level of discharge but then it will switch to   
   voltage mode BUT the terminal voltage has to be temperature   
   compensated.   
   >   
   >I'm an industrially trained sparkie with little to no experience with   
   >electronics (apart from replacing blown components on PCBs)   
      
   It's probably not worth modifying, unless you want to rip its guts out   
   and use some of the components building a better charger.  If your   
   problem is leaving it on, perhaps a timer is the best/simplest   
   solution.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)