I have a power inverter in my car that I installed about 4 months ago. I bolted the ground on it to the ground terminal connector of my car battery and the + to the positive side of it. Fast forward to present, my ground on my car is corroded significantly and the nut and bolt on it have corroded so badly that the nut has puffed and the terminal is orange (both were silver instead of that poopy color). Ill add a picture of it.
One part of the problem was that these terminal connectors are junk, ground one never really clamped on the battery that well (decent but could be bumped off with your hand no matter how tight you tightened it) and I have replaced that old terminal with one like this ( https://www.electricalhub.com/generic--battery-terminal-top-post-1 ) as my car would no longer start with the old one and was just giving me way too many problems.
Capacitor / Battery situation question
With that said I am trying to figure out how best to handle the inverter now that I have replaced the battery terminal. One problem I had with it outside of the corrosion thing is that when I start my car, the inverter would freak out and start beaping at me until I turned the inverter off and then back on after having started my car. I am assuming that it either doesn't like the electrical noise that occurs from starting my car, or the voltage drop from staring my car would drop the inverter low enough that it would not work until it was turned off and then back on as some kind of annoying (to me) safety feature... The inverter works fine outside of when i start the car however.
I was thinking about either getting a small motorcycle battery that would act as a buffer between the car battery and the inverter to reduce noise/ voltage drop or getting a large capacitor instead. Both I would put closer the the inverter as I have about a 7-8 foot run from the battery to the inverter.
[Frame]--[Battery]------[2nd Bat or Capacitor]--[Inverter]
1 "-" is equal to 1 foot of wire
if a capacitor is the better way to go, can you please link me to one? the best I can find is ones made for 440V and I feel like that would be overkill. I don't really know how to differentiate capacitors so a dummed down explanation would be awesome since I am not sure how to make google give me an explanation i could follow since the ones I was looking at had stuff like 40-5 and 60-7.5 in the description which threw me for a loop