Battery not charging?

Follow the + battery cable to the solenoid, there you will find three "fusible" links, check for power on both sides of all three. If OK Under the hood find the fuse box, this is the power distribution center, and check all fuses and relays there. MAIN vehicle power is supplied from the alternator to this box...

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Please run down this guide and report back.

I am sure you have checked fuses but check to see if you have power on both sides in one in box under hood. There may be a break in the fuse box and or instrument cluster where the resistor is. Or a broken wire to one of the leads to alternator.

Check for twelve volts on the yellow wire in the three-wire plug on the back of the generator. If that is missing, check for twelve volts on the large output terminal. If voltage is missing at both places, the large 175-amp bolted-in fuse is blown. If it is only missing on the yellow wire, look for the 30-amp charging system fuse.

Check the fuse and wiring -remove connector behind alternator turn key on and check for power at the light green and red wire-also see below

Good evening.

That wire is powered by the fuse listed in the diagram I attached.

It then turns on the light bulb on the dash. From there it goes to the alternator.

Check that fuse and let us know.

Roy

It sounds like you have a fusible link that is out or a connection problem. Lets test the system by following this guide

https://www.2carpros.com/articles/how-to-check-wiring

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

With the key on you should have power to the yellow and white wire to the alternator and the B+ terminal of the alternator.

Please let us know what you find.

Cheers

Here are some instructions from the repair manual.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

and

1. Unplug harness connector from regulator at rear of generator. Connect ohmmeter between regulator "A" and "F" terminal screws. See Fig. 1 and Fig. 3 . If resistance is not greater than 2.4 ohms, a short in field circuit or a grounded rotor coil is indicated. Replace generator. If resistance is greater than 2.4 ohms, go to next step.

2. Reconnect regulator wiring plug. Connect negative voltmeter lead to ground. Contact positive voltmeter lead to regulator "A" terminal screw. If voltmeter does not indicate battery voltage, repair open or high resistance in "A" circuit wiring. Perform load test after repairs.

3. If battery voltage is indicated at "A" terminal screw, ensure ignition switch is in OFF position. Connect positive voltmeter lead to regulator "F" terminal screw. If battery voltage is present, go to step 4). If battery voltage is not present, replace generator.

4. Turn ignition switch to ON position (engine off). With voltmeter negative lead to ground, contact positive lead of voltmeter to regulator "F" terminal screw. If voltmeter indicates 2 volts or less, go to next step. If voltage is greater than 2 volts, check circuit between "I" terminal and ignition switch. Repair if necessary. See "S" & "I" CIRCUIT TEST . If "I" circuit is okay, replace regulator. Perform LOAD TEST after repair.

5. Start engine and run at 2000 RPM with headlights on. Measure voltage at "B+" terminal of generator and at generator feed wire at starter relay. If voltage readings differ by more than 0.5 volt, repair high resistance or open in wire between "B+" terminal and junction near starter relay.

6. If generator still does not charge sufficiently, connect a jumper wire to regulator "F" terminal screw and ground it to rear housing. If output voltage increases to 13-15 volts, replace regulator. If output voltage does not increase to at least 13 volts, replace generator. "S" & "I" CIRCUIT TEST 1. Unplug regulator 3-wire harness connector. Connect jumper wire from harness "A" terminal to regulator "A" terminal. See Fig. 1 and Fig. 2 . Connect another jumper wire from regulator "F" terminal screw to generator housing. 2. With engine idling, connect voltmeter negative lead to battery ground terminal. Connect voltmeter positive lead first to "S" terminal and then to "I" terminal of regulator harness connector. See Fig. 2 . Voltage at "S" terminal should be about 7 volts and about 14 volts at "I" terminal. If "S" terminal and "I" voltages are okay, replace voltage regulator.

, proceed with appropriate testing.

Check fuses, ground wires and fusible links at starter solenoid.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let us know

Double check connection at the alternator/battery

Get the alternator tested the way you described it-the alternator is overcharging the battery and battery can explode. Also test the battery

We appreciate your donation and look forward to helping you in the future. Thank you

NO-LOAD TEST 1. Connect voltmeter positive lead to B+ terminal on generator and negative lead to ground. Start and run engine at 1500 RPM with no electrical load (foot off brake and doors closed). Read voltmeter when voltage stabilizes. This may require waiting a few minutes. Voltage should be 13-15 volts. 2. If voltage increases to proper level, proceed to LOAD TEST. If voltage increases beyond proper level, proceed to OVERCHARGE CONDITION. If there is no voltage increase, proceed to LOW OR NO CHARGE CONDITION.
It's more likely the lack of driving that's the problem, it's recommended to remove the negative cable for long periods of inactivity.