Hello,
I'm interested in building a circuit (or purchasing something COTS?) that will do the following:
Attach to a car's battery (9-14.4Vish, 50Ah) and clean it to a steady 12V DC line to run a lot of various electronics. The circuit will need to be able to supply a lot of amps, 20+. It is acceptable that this will drain the battery quite fast. How can I make this resilient to the cranking when turning the car on (drops Voltage down as low as 6V sometimes) and also resilient to voltage spikes (40+V on occasion in a live car).
The best I have been able to find/come up with are regulators, but they cap out around 5A from what I can tell. Any ideas?
Second question/scenario:
What happens if I take a second car battery and tie it in parallel with the car's original battery? Will it naturally recharge correctly, just slower, from the alternator? If I did this to help get enough amps/clean dc would it help/hurt/make no difference? Even more batteries?
Thanks!
I'm interested in building a circuit (or purchasing something COTS?) that will do the following:
Attach to a car's battery (9-14.4Vish, 50Ah) and clean it to a steady 12V DC line to run a lot of various electronics. The circuit will need to be able to supply a lot of amps, 20+. It is acceptable that this will drain the battery quite fast. How can I make this resilient to the cranking when turning the car on (drops Voltage down as low as 6V sometimes) and also resilient to voltage spikes (40+V on occasion in a live car).
The best I have been able to find/come up with are regulators, but they cap out around 5A from what I can tell. Any ideas?
Second question/scenario:
What happens if I take a second car battery and tie it in parallel with the car's original battery? Will it naturally recharge correctly, just slower, from the alternator? If I did this to help get enough amps/clean dc would it help/hurt/make no difference? Even more batteries?
Thanks!