judelaurenzo25g wrote:
wa8yxm wrote:
Let me ask you a question.. What converter do you have on your RV?
I currently have a WFCO...
I'm located in the San Fernando Valley. I have an extra brand new PD9245 with charge wizard controller for sale. I also have a manual charger that will equalize your batteries, and a means to measure specific gravity accurately. PM me a phone number, I am retired, if you have time today, or any time.
I'd be glad to get you set up so you can get your Trojans in tip top shape. I run a pair of Trojan T-1275s.
If your T105's have not been too badly abused, or stored with a low charge for too long, they should be salvageable. Storing them for any length of time with a low charge does permanent damage with sulfating of the cells.
Like you, my WFCO 8955 was killing my batteries. It sits in maintenance mode, with 13.2V. Your trojans need 15.0v, daily. They need to be brought up to 15.7 to 6V to equalize charge them every 10-12 days when in regular use. There is no 3 stage charger that will ever bring those batteries up to 15.7V +. 14.4 to 14.6 in boost mode is the best you'll see with a 3 stage.
You need to go manually.
If your batteries can be brought up to 1.270 -1.280 specific gravity, and you disconnect them, and store them disconnected from everything, you'll still need to hit them again every 2 or 3 months with a full equalization charge. Golf cart batteries need to be charged. Regularly. They are really designed to be charged every night, not sit in storage without useage, due to the high antimony content in the lead plates, that gives them the true deep cycle capabilities.