Tow Vehicle Battery and Alternator
My trucks alternator is rated at 150 amps. Its starting battery is your typical 600 CCA AC Delco variety. My goal is to increase charging capability through the 7 pin pigtail connector near the hi...
Forum Discussion
Matt_Colie wrote:
With the entire life of a Lead/Acid battery between 12.0 and 12.6, and peak charging limited to 14.4 (or .6), there is no room for voltage drop. So a huge alternator will be a lost cause even if you run welding cable from the alternator to the house bank.
First, it takes AT LEAST 13.2V to put energy into a lead-acid battery, PERIOD !
I have mentioned this in a least a dozen other posts. Modern cars, light and most medium duty truck (Class A) use "smart charging". In short, the voltage is regulated AT THE VEHICLE BATTERY to about 13.2V for 99% of the time the engine is running. After the voltage drop to your house battery bank, there is simply not enough voltage left to charge it !
