So I have a ignorant electronics question. If I normally run Lithium Ion at like 14.4V-14.8V whatever they are I can never remember exactly but in that 14V range. I know when batteries are charged fully they have an initial voltage that exceeds their rated working voltage. It takes a bit to bleed off that higher voltage. Here is my question. If I am using electronics where the manufacturer says that ABSOLUTELY voltage can not exceed 15V, is there something that can simply put wired in between the battery and the control board that will limit the voltage to under 15V? I am assuming that my lithium ion batteries when fully charged would exceed 15V since they are already at that upper end of the voltage limit. I am a water guy and this to me would equate to a pressure regulator where by the supply pressure can vary but the output pressure does not exceed a certain pressure. Is there an “SIMPLE” electrical equivalent like some sort of resistor? I know what circuit breakers do and that doesn’t seem to be what I would need because this is not an amperage overdraw issue. I just need something to deal with initial voltage until it gets to its rated voltage. I hope this makes sense.
The other option, is I could change the battery packs and go with a lower voltage set up. A quick look on Tenergy’s page it looks like the lithium Ion options for voltage are 14.8V or 11.1V. Will 11.1V run trains in a manor that I will be happy with? I don’t run high speed super trains. I very seldom run a train anywhere near over half of its capable speed. I also do not run 30 car consists. Would 11.1V run my USA trains GP9 with say as many as 15 cars should I get the notion and give me a reasonable speed and not run the battery down super fast. I realize I can increase mAh hours at any voltage and increase running time but if I understand things, all other things being equal, that a battery with lower voltage but same mAh rating won’t last as long given the same load. Basically I won’t have the space to ad more cells to increase amp hours so I will be stuck (again assuming) with the same relative size packs with the same amp hour ratings but lower voltage output? yes-no?
I am wanting to put a new to me system in my current GP9 build and if it works well and I like it I maybe switching over to it entirely. So knowing what it will require electrically makes a difference in determining if I really want to go this route or not. The person who has turned me onto it loves it in his smaller 7/8ths stuff. It sounds like a neat system and something I would like to consider. But I have to be confident it will run larger locos.