Can i use it for car audio system without throttling my car when listening to music

It is a power supply that you could connect to your car, then plug it in and play your car stereo without running the engine. It is rated for 100 amps. You need to know what your load is so you don't overload it. I have a real concern for your ears if you need all of its power!

I saw a previous question that was answered very vaguely: I see the title saying it's rated at 100 amps but the pictures say 75amp, which is it??

I bought a 100A unit, received a 100A unit. Picture showed 75A.

can it start a car with a dead battery?

Yes AND no. It is not a jump starter but can re-charge a battery over time from being very weak. More info would be needed based on your situation.

Can this be used to charge a battery overnight or will it overcharge/fry a battery?

You can charge a battery with this but the usage is more for a battery maintainer in programming in automotive vehicles.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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PowerMax PMBC-100-SE 100 Amp Automotive Battery Charger & 12V Power Supply

Product ID: 28780492

Details

Brand
PowerMax
Color
Black
Item Weight
15 pounds
Output Voltage
14.6 volts
Product Dimensions
11"D x 8"W x

⚡100A high-current output

🔋Adjustable 14.6V output

🔧Stable voltage for ECU programming

KD 227.50

Duties & taxes included

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Description

⚡ PowerMax PMBC-100-SE: The ultimate battery power supply for flawless ECU programming and beyond!

PRO GRADE DURABILITY - Equipped with heavy-duty 15-foot 4 AWG cables and clamps built for professional workshop reliability.
VERSATILE APPLICATION - Adjustable voltage settings make it perfect for battery service, showroom demos, and power supply needs.
EXTENDED SERVICE READY - Supports long diagnostic and calibration sessions with continuous battery power supply.
POWER THROUGH EVERY FLASH - Delivers a robust 100 amps to prevent voltage drops during demanding ECU and ADAS calibrations.
PRECISION VOLTAGE CONTROL - Maintains ultra-stable 14.6V output ensuring flawless ECU reflashing and module programming.

The PowerMax PMBC-100-SE is a professional-grade 100A battery power supply designed to deliver ultra-stable voltage during ECU programming, ADAS calibration, and extended diagnostic work. Featuring adjustable 14.6V output, heavy-duty 15-foot cables, and robust protection, it ensures reliable performance for automotive technicians and workshops demanding precision and durability.

Specifications

Amperage	100 A
Asin	B0094K8AAO
Battery Charge Time	55 hours
Best Sellers Rank	#68,667 in Automotive (See Top 100 in Automotive) #345 in Battery Chargers
Brand	PowerMax
Color	Black
Current Rating	100 A
Customer Reviews	4.6 4.6 out of 5 stars (110) 4.6 out of 5 stars
Input Voltage	110 volts
Item Dimensions D X W X H	11"D x 8"W x 4"H
Item Highlight	100A Output, Adjustable 13–16V, LCD Display & 15ft 4 AWG Cables for Programming, ADAS and Diagnostics
Item Weight	15 pounds
Manufacturer	PowerMax
Mfr Part Number	PMBC-100-SME
Model Number	PMBC-100-SE
Number Of Items	1
Number Of Ports	2
Output Voltage	14.6 volts
Specification Met	ETL
Unit Count	1 Count
Upc	850040355239

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