Charge Controller Installation location
Getting ready to start the install of my solar system and I am trying to figure out the best mounting/wiring options. I have the Xantrex C35 charge controller. My trailer is a prowler with a large fro...
Forum Discussion
Hi Jonny and BFL13,
About 1/4 of all the energy used for charging a lead acid battery is dissipated as heat. That raises the core temperature of the battery. Similarly, on discharge, the internal resistance of the battery causes the core to rise in temperature.
Every chart and all the data provided by battery makers is correct--at 25 C (77 f). As soon as the internal temperature deviates from that number, the charging voltage should be "tweaked" to have the most efficient charging possible.
The charge controller needs to be placed where it will not get wet, not where it might not get wet. If it will be where the sun can shine on the compartment it will happily reduce the charging voltage unless the battery temperature sensor is used.
About 1/4 of all the energy used for charging a lead acid battery is dissipated as heat. That raises the core temperature of the battery. Similarly, on discharge, the internal resistance of the battery causes the core to rise in temperature.
Every chart and all the data provided by battery makers is correct--at 25 C (77 f). As soon as the internal temperature deviates from that number, the charging voltage should be "tweaked" to have the most efficient charging possible.
The charge controller needs to be placed where it will not get wet, not where it might not get wet. If it will be where the sun can shine on the compartment it will happily reduce the charging voltage unless the battery temperature sensor is used.
