Magnum Energy ME-ARC Remote User Manual

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Setup

Info: When Multi is selected and the charger goes to Full charge mode, if another

charge source (such as PV or wind) is charging the batteries above the fully charged

voltage, the charger will remain in the Full Charge stage.

Why should I use Multi? Multi is the most commonly used charge mode. It is suitable for most

applications and assures a full charge to the batteries, without overcharging. If there is another

alternate charge source charging the batteries (PV, wind or hydro), then Multi mode uses the

inverter/charger to complete a full charge. The inverter/charger transitions to Full Charge mode

and the alternate charge source then maintains the battery voltage. If the alternate source is un-

able to maintain the voltage, the charger enters Float mode for another 4-hour period. The Full

Charge feature in the Multi mode also helps reduce water consumption in fl ooded batteries when

they are left in charge mode for extended periods, such as in a backup power application.

◊ Set Final Charge Stage = Float – The Float stage is a maintenance charge mode that

maintains a constant voltage—while delivering up to the maximum rated current of the char-

ger in order to power any DC loads connected to the batteries. Most 3-stage chargers fi nish

the charge mode in Float, and remain in Float as long as an AC source is available on the input

of the charger. The fl oat voltage is determined by the battery type selected in the 03C Battery

Type menu. Unlike Multi mode, in Float mode there is no Full Charge feature. See Figure 3-13.

Why should I use the Float Charge Stage? Float mode is typically used when the charger is

the only charge source connected to the batteries. This mode will maintain the batteries at the

fl oat voltage. If using fl ooded batteries and the charger is in fl oat for an extended period, the

water level should be checked every two to three weeks for proper levels.

◊ Set Final Charge Stage = Silent – The charger stops charging once it transitions to

‘Silent’. Normally, the charger enters Silent mode after the Absorption charge mode has

fi nished. Once the charger enters the Silent mode, the battery voltage is continuously moni-

tored. If the batteries fall to the Set Rebulk Volts value, the charger restarts the Bulk charge

mode and then transitions to Absorb charge mode. After the Absorb charge mode, the charger

again transitions to Silent mode. This Silent to Rebulk to Absorb and back to Silent cycle will

continue as long as it is required. See Figure 3-14.

 Set ReBulk Volts – When Silent mode is selected, you must also set the DC voltage

set-point where the charger restarts the Bulk charge mode. This setting should be slightly

above the lowest DC volts to which you want the batteries to fall. Typically, the lowest DC

volts to which the batteries are allowed to fall is 12.0 to 12.2 VDC (12-volt systems), 24.0

to 24.4 VDC (24-volt systems), and 48.0 to 48.8 VDC (48-volt systems), respectively.
Default setting: 12.0 VDC (12V), 24.0 VDC (24v), 48.0 VDC (48v)
Ranges: 12.0-16.0 VDC (12v), 24.0-32.0 VDC (24v), 48.0-64.0 VDC (48v)

Why should I use the Silent Stage? Silent mode is typically used when an alternate charge

source is available and able to fully charge or fi nish the charge cycle after the Absorb stage. A

major difference between Multi mode and Silent mode is that the Silent mode returns to Bulk

mode instead of Float mode. In Silent mode, you can also adjust the Rebulk set-point in order to

allow the alternate charge source to provide more of the battery charging.
• 03H EQ Reminder Days: This menu sets the number of days that must pass before the

remote will remind you to equalize your batteries.
Default setting: OFF
Range: OFF, 1-255 Days
Note: If “CC/CV Controlled” displays on this menu’s screen, you will not be able to adjust the

settings as “CC/CV” has been selected as the battery type from the 03C Battery Type menu.

Info: Once equalizing begins, the METER: 03C Since EQ Start timer resets to zero days.

SETUP: 04 AGS Setup/SETUP: 05 BMK Setup/SETUP: 06 PT Setup
Refer to Sections 7.0, 8.0, and 10.0 respectively for detailed information on the AGS/BMK/PT

SETUP menus that are available from the ME-ARC remote’s SETUP button.