Battery not holding a charge with a new alternator and fuse

[mr 240]

SO I changed my alternator and belts battery etc ....now my windshield wipers are moving slow again my radio is cutting in and out......and my battery is only readying 12.8 i know its suppose to read 13.5 or 14 can anyone help me out with this problems any tips that is

[DryskalM3S13]

was the alternator a new one or reman? i work at autozone and some of the remans (duralast, granted they have a lifetime warranty) arent as good as they appear to be. if its a reman try another one or get a brand new one. the regulator is a pretty common failure point. if its all good check the wiring, big issues can be had because of stupid wiring faults. ex: pinched, corroded, rubbing, shorted, broken

[the converted]

Double check your engine to chassis and chassis to battery grounds. You can also measure the voltage between the block itself and the positive terminal of the alternator when it is running and compare that to what you are seeing at the battery.

[hwyix]

First make sure you have a good fully charged battery are all your in car test will be meaningless.

Then do a voltage drop test.( what "the converted" said to do. )

Double check your engine to chassis and chassis to battery grounds. You can also measure the voltage between the block itself and the positive terminal of the alternator when it is running and compare that to what you are seeing at the battery.

Like DryskalM3S13 said, most reman generators suck from autozone, pep boys, etc... I would go with a factory one.