I am trying to disable the charger on a Tripp lite internet525u UPS. I have hooked up the UPS to two 35ah 12v SLA batteries in parallel and it works great but I want to hook up an external battery charger and disable the UPS internal charger. Can someone point me in the right direction to accomplishing this. I have good soldiering skills but I'm a beginner at circuitry.
Here are some images of the PCB.
View the photos bigger on my picasa album here
https://picasaweb.google.com/109006...authkey=Gv1sRgCIm15am-jpml2AE&feat=directlink
Thanks
Here are some images of the PCB.
View the photos bigger on my picasa album here
https://picasaweb.google.com/109006...authkey=Gv1sRgCIm15am-jpml2AE&feat=directlink
Thanks