Mighty max wont charge battery

You can do a battery upgrade from the standard 10AH battery to 12AH or even 15AH. The larger the Amp Hour rating is, the longer the battery will last. Also worth pointing out the battery deteriorate with age and how well they are maintained. Long periods left flat will damage their ability to hold a charge.

https://www.google.com/search?q=schwinn+s350+battery+upgrade

The Mighty Max battery is 10AH

https://www.google.com/search?q=schwinn+s350+mighty+max+battery

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run fault codes and check for immobiliser , cam/crank position sensor and broken timing belt/chain ( check that the cam shaft is turning). Check ING fuse has not blown

12.4 is not enough

Any time you work on a car you need 12.5 or more
& have to charge or replace the battery if old or won't
charge.

The click could be the battery voltage or starter solenoid

Maintenance required light could mean its time for an oil change. Do you have a check engine light too ?
The battery/brake light can mean the brake fluid is low or the battery is not being charged by the alternator.

Does the alternator light come on before you start the vehicle..
If not the alternater is incorrectly connected or the globe is blown . It will not charge if the globe is faulty.

1990 Mitsubishi Truck Mighty Max 2WD 2.4L FI 4cyl
The Firing Order mitsutrk01:
Firing order 1-3-4-2 --------- front | | of | 1 2 3 4 | Distributor rotates clockwise vehicle | | ---------

1990 Mitsubishi Truck Mighty Max 4WD 3.0L FI 6cyl
The Firing Order mitsutrk04:
Firing order 1-2-3-4-5-6 ------- front | 1 3 5 | of | | distributor rotates counter vehicle | 2 4 6 | clockwise -------


Hope help with this (remember rated this help).

First tell me why you don't think it's charging.
Because of the voltage reading you are getting at the battery terminals? The range you want is between 13.6v to 14.2v. The higher the voltage the lower the amps. and true the other way, the lower the voltage the higher the amps. If you get a reading of 13.6v or lower, the alt is nearing or at max output. An alt can only run at maximum for around fifteen minutes and it will start slinging solder from overheating. It's a good indication the battery is either totally dead or junk. Charging above 14.2 the alternater is running wide open and is only putting out high volts which will cause the battery to boil , in turn destroying it. This is a bad alternater. All alternaters have integrated voltage regulater with the exception of ver few of the earlier ones. You cannot test an alternater by removing a battery cable to see if the engine keeps running without taking great risk of damaging the alt, regulator. So tell me why you feel it isn't charging. Remember an alt is not made to charge dead batteries. Their sole function is to maintain the battery charge. Without a battery, the alt won't last 10 seconds.
Hope to hear from you and good luck.

timing chain when you get a variance in timing easy to see with a timing light haynes manual should be sufficient

Once the battery was placed backwards it may have sent a charge to the radio causing it to stop working, the alternater you should just try to either get it directly replaced same model..but if you want to try make sure all conectors are the same...other then that you can probly get a rebuilt one cheaper...rebuilt your current one will make sure its the same...and one major thing before you change anything make sure that the belt is on properly for the alternator and everything and just check if you are geting any charge from it

Mazda Mpv 2000 I also have the same problem, the alternater is testing good- 14.12Amp, so what is the problem the battery light will not go off.