Charging Repair of APC Back UPS RS 500

                                           This is the front view off  APC Back UPS RS 500

 

Open the two screws on the back panel with plus screwdriver

 Remove the circuit board on the front panel.

now its all open and you can see all the circuit inside.Never remove All wires plug.

Charging faulty capacitor.

Replace the capacitor with a new one with similar or better specification.

its 22uf,16v, 85°c

After replacing It your charging current is 12v and 6 amp

thanks.