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unlike NiCads, SLA batteries life expectancy is based on how deeply it is
discharged, how long it is left in that condition and the number of discharge
cycles. Thus if you want to get the greatest life from your SLA batteries, you
should keep them charged at all times. This is easily accomplished with the PSC
PowerMax as it can be used while charging. The PSC PowerMax has a built in
"fuel" gauge style battery meter that allows you to visually see the remaining
battery capacity at a quick glance. The PowerMax is also designed to protect
your batteries from over discharge. When your battery voltage drops to a pre-
determined level (approximately 10.8Vdc) the PowerMax will automatically shut
itself off and disconnect the load from the battery.
Thus you cannot over
discharge your batteries from misuse or by accidentally leaving your equipment
on over a weekend, etc. The battery meter is also color coded from green to red
as it falls from "FULL" towards "EMPTY". When the last red LED turns off, so
does the PowerMax.
BATTERY STORAGE:
Even though the PowerMax does not contain any built in batteries, we can offer
you a word of advice. Always make sure to charge your batteries before putting
them into storage. Your batteries should not be allowed to go below 10.6Vdc for
any extended period of time. It will permanently damage them. Because all
rechargeable batteries slowly self discharge while in storage, it is recommended
that you charge them every two to three months when you are not using them for
extended periods of time. This will ensure that the batteries never self discharge
to a damaging level.
USE:
The PSC PowerMax is designed for use in powering your entire digital audio
recording package. The PowerMax's six, 4-pin female XLR output connectors
provide all of the various output voltages at all times when the PowerMax is
switched on. Thus all power cables wired for use between the PowerMax and
your equipment must be wired correctly and professionally.
Anytime the
PowerMax is plugged in; its battery charger is turned on. Thus your batteries
may be charged without the PowerMax's front panel electronics turned on. By
pressing the "ON" button, the PowerMax will turn on and begin to supply all of the
various output voltages to your equipment. If the PowerMax is connected to a
battery, but not plugged into AC, all of the power will come from the battery. If
the battery is discharged below a safe point, the PowerMax will not stay on when
the "ON" button is pressed. If the battery level is good, the PowerMax will latch
on. When the batteries are discharged to the point where the battery meter is
readying empty, the PowerMax will automatically shut it self off. You can also
shut off the PowerMax at any time by simply pressing the "OFF" button. You can
also operate the PowerMax without batteries connected by simply plugging the
PowerMax into AC and pressing the "ON" button. The PowerMax will output all
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