Q: Charging system

asked by on June 02, 2017

I have left the keys in the ignition turned the whole night next day car was dead I gave it a jump start eventually it fired up .but after when I start the car it sounds weak like if it wants to turn off but doesn't if I rev it up it sounds strong and normal but when I let go of the gas and rpms drop car sounds like if it's about to die out and headlights turn dim as well for a second but continues running could this be a battery problem or something in the motor?

My car has 156176 miles.
My car has a manual transmission.

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