# R2 will accept to be adapted to set the able accomplishment allegation voltage. Flooded and gel batteries are about answerable to 13.8V. If you are cycling the array (AGM or gel) again 14.5V to 14.9V is about recommended by array manufacturers. To set up the charger, set the pot to midway, about-face on the charger and again affix a array to it's output. Monitor the allegation with a voltmeter until the array alcove the able end voltage and again acclimatize the pot until the LED glows steadily. The charger has now been set. To allegation assorted array types you can arise the pot on the advanced of the case and accept anniversary position apparent for the adapted voltage.
# Q1 will allegation a heatsink. If the ambit is army in a case again a baby fan ability be all-important and can about be powered adapted off the achievement of D1.
# Q1 will allegation a heatsink. If the ambit is army in a case again a baby fan ability be all-important and can about be powered adapted off the achievement of D1.
# T1 is a agent with a primary voltage adapted to your area (120V, 220V, etc.) and a accessory about 12V. Using a college voltage accessory (16V-18V) will acquiesce you to allegation 16V batteries sometimes acclimated in antagonism applications.
# If the ambit is powered off, the array should be broken from it's achievement contrarily the ambit will cesspool the array slowly.
12V Lead Acid Battery Charger Automatic Circuit Part List:
# If the ambit is powered off, the array should be broken from it's achievement contrarily the ambit will cesspool the array slowly.
12V Lead Acid Battery Charger Automatic Circuit Part List:
| R1, R3 | 2 | 330 Ohm 1/4W Resistor | |
| R2 | 1 | 100 Ohm 1/4W Pot | |
| R4, R5, R7, R8 | 4 | 82 Ohm 2W Resistor | |
| R6 | 1 | 100 Ohm 1/4W Resistor | |
| R9 | 1 | 1K 1/4W Resistor | |
| C1 | 1 | 220uF 25V Electrolytic Capacitor | |
| D1 | 1 | P600 Diode | Any 50V 5A or greater rectifier diode |
| D2 | 1 | 1N4004 Diode | 1N4002, 1N4007 |
| D3 | 1 | 5.6V Zener Diode | |
| D4 | 1 | LED (Red, Green or Yellow) | |
| Q1 | 1 | BT136 TRIAC | |
| Q2 | 1 | BRX49 SCR | |
| T1 | 1 | 12V 4A Transformer | See Notes |
| F1 | 1 | 3A Fuse | |
| S1 | 1 | SPST Switch, 120VAC 5A | |
| MISC | 1 | Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output, Fuse Holder |
