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Add a lithium cell or a high output alternator?

6510 Views 56 Replies 14 Participants Last post by  ecobass
My car/audio electrical is this:
180amp alt and 2x large gel cell AGM’s and when running my lights dont flicker and it will droop too 0v-.4v by all the meters from my cars computer and a bass control that reads it.
I just installed two amps that are twice the power my old ones had. And yes everything possible is fused. So know my electrical system needs a boost.

Buy what i read i have several solutions.
A new alternator, Which is a pita as ill have to pay to get it done.
Add a JP40 lithium cell thats all self contained with a remote and im rather sure an isolator.

Buy a bigger lithium cell from Amazon as the are on sale.
with a dual lithium cell battery isolator.

lastly and its the easy way but mot the best imo is add another 12v agm Battery.

With all that info what do you suggest?
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My car/audio electrical is this:
180amp alt and 2x large gel cell AGM’s and when running my lights dont flicker and it will droop too 0v-.4v by all the meters from my cars computer and a bass control that reads it.
I just installed two amps that are twice the power my old ones had. And yes everything possible is fused. So know my electrical system needs a boost.

Buy what i read i have several solutions.
A new alternator, Which is a pita as ill have to pay to get it done.
Add a JP40 lithium cell thats all self contained with a remote and im rather sure an isolator.

Buy a bigger lithium cell from Amazon as the are on sale.
with a dual lithium cell battery isolator.

lastly and its the easy way but mot the best imo is add another 12v agm Battery.

With all that info what do you suggest?
alternator provides electricity when the car is running. batteries provide electricity when the engine is not running. alternator also charges batteries whil car is running.
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That goes out of the window with lithium and transient music. Lithium reacts so much faster and is so much more power dense. You can run way more power on much less lithium than agm. The alt doesn't even have to be very big since the fade in and fade out time between songs is usually enough to top lithium right back up
v = i*r
lithium batteries are generally at 12.6 volts while alternators usually put out over 13 volts. this is necessary so the alternator can charge the battery. when the car is running, the alternator voltage is greater than the battery voltage. the best upgrade for a running car regarding electrical output is upgrading the alternator.
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