“Can this battery be used for car audio as a second source of power for amps?”
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Yes, the Renogy 12V 100Ah Pro Smart LiFePO battery can be used as a secondary power source for car audio amplifiers, as long as it’s wired correctly and charged properly. It provides stable voltage and high power output, which helps support amplifiers during heavy bass demand. However, keep these points in mind: Charging: A LiFePO-compatible DC-DC charger is recommended, as standard alternator/lead-acid systems are not optimized for lithium batteries. Voltage: It matches 12V systems, but amps must tolerate a full charge voltage of ~14.4V. Isolation: Use proper isolation from the starter battery to prevent drain when the engine is off. Mounting: Secure installation is required to handle vehicle movement and vibration.
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