How to repair Ghotki battery charger 30Ah All problems solve

Ghotki Charger 30AH Repair Description
Ghotki Charger Overview:
Type: Automatic Battery Charger
Capacity: 30AH (Ampere-Hour)
Voltage: 12V/24V (depending on model)
Brand: Ghotki (Pakistani manufacturer)
Common Issues:
1. Not charging battery
2. Overcharging/Undercharging
3. Faulty voltage regulator
4. Burnt or damaged components
5. Loose connections
Repair Steps:
Precautions:
1. Ensure safety with insulated tools and protective gear.
2. Disconnect power source before starting repair.
Tools Needed:
1. Multimeter
2. Soldering iron and solder
3. Wire strippers
4. Pliers and screwdrivers
5. Replacement components (e.g., voltage regulator, diodes)
Repair Procedure:
1. Disassemble charger casing.
2. Inspect PCB (Printed Circuit Board) for damaged components.
3. Check voltage regulator and replace if necessary.
4. Verify diodes and replace if faulty.
5. Inspect wiring and connections; repair/replace as needed.
6. Reassemble and test charger.
Component-Level Repair:
1. Voltage regulator (e.g., 7812/7912)
2. Diodes (e.g., 1N4007)
3. Resistors
4. Capacitors
5. Transformer
Troubleshooting Tips:
1. Check input voltage and output voltage.
2. Verify charging current.
3. Inspect battery terminals and connections.
Repair Time:
Basic repairs: 1-2 hours
Advanced repairs: 2-5 hours
Repair Cost:
Replacement components: $10-$50
Labor costs (if applicable): $20-$100
Would you like:
1. Schematics or diagrams for Ghotki Charger?
2. Repair guides for specific components?
3. Troubleshooting advice?
4. Information on similar charger models?