Simple Automatic Charger Shutoff
for Electric Vehicle Battery Chargers

Bill Of Materials

(Radio Shack Shopping List)


REF R.S. Part # Value
C1 272-1027 47uF 35V
C2 272-1025 10uF 35V
C3 272-1028 100uF 35V
D1 276-208 LED T1-3/4
D2 276-1102 1N4003
Q1 276-2016 2N3904
R1 271-1335 10K 1/8W
R2 271-1342 47K 1/8W
R3 271-1317 470 1/8W
RY1 275-232 5V Reed Relay
RY2 275-248 12V SPDT Relay
RY3 Lester Main Contactor
S1 275-1547 N.O. Momentary
S2 275-1548 N.C. Momentary
S3 275-603 SPST Toggle
U1 276-1771 LM7812 Reg