3 Stage Charging Mode; Fixed Voltage Mode; Test; Battery - PowerMax PM3-15 Installation & Maintenance Instructions

8.

3 STAGE CHARGING MODE:

This is the Factory Settings with the Smart Charging mode 'ON' with the Output Voltages preset to 14.6V / 13.6V and 13.2V.
DESCRIPTION: This mode provides an automatic charging system in three steps. 1. A fast charge to bring a good, drained battery
back up to full voltage rapidly ("Boost"). 2. A standard charge to bring the battery up to a full charge at a safe rate to prolong the life of the
battery and provide power to run 12V lighting and appliances in the vehicle/device ("Normal"). 3. A trickle charge to keep the battery fresh
during times of load inactivity ("Storage"). The charger automatically changes modes to accommodate changes in conditions. The chart
below is for reference only, voltages may vary.
9.

FIXED VOLTAGE Mode:

DESCRIPTION: This mode can be used to directly power 12 Volt equipment and or maintain the battery at that voltage.
To set in fixed mode, with the unit off, move switch A, right to "Fixed Voltage" then plug the unit into 110V power. Turn switch B gently up or
down to adjust the voltage between 13~16.5V until reaching your required output. NOTE: The output voltage you set is now fixed constantly at this
level every time the unit is powered ON. To return the unit to its Factory Settings, power down the unit then move switch A, left to "Three
Stage". Power up the unit and with a voltage meter attached to the output terminals, use switch B to gently turn the voltage up or down until you
reach 14.6V. The unit is now back to the standard " 3 Stage Charging" Factory Setting
10. TEST. First, disconnect all loads and battery on the Converter/Charger by removing all 12 VDC connections from + or POS . Second,
attach a multimeter instrument between the positive and negative terminals of the Converter/Charger. Then energize the 120 VAC converter
circuit. Test for proper output power using the multimeter. Measure the output voltage from the positive and negative terminals. The voltage
should read 14.6 +/- 0.2 VDC. Add 12 VDC load connections to about 2/3 of the rated capacity of the converter. Recheck the voltage, which
should remain approximately the same as at no load. NOTE: If the chargers output voltage is set below the battery voltage the charge will
not charge plus the LED will not come on.
11. BATTERY. With the 120 VAC disconnected, reconnect the + or
VAC energized, measure the voltage at the converter and at the battery. The voltage should be about the same in both locations. As with any
battery it is important that the fluid level be checked on a regular basis. When continuously connected to any charging source all batteries will
"Gas" and lose some fluid.
12. HI-POT TESTING. (Vehicle/device Manufacturing Facilities Only) DO NOT Hi-Pot DC wiring with the Converter/Charger connected to the
vehicle/device wiring in order to prevent serious injury and/or damage.
switch A
WARNING – Avoid Personal Injury / Product Damage
switch B
POS positive terminal to a known good battery. With the converter 120