Power On Indicator | HeadsetUSA PAS 400 guide

If AC mains power is interrupted, the system will automatically switch over to battery power. Remote On / Off switching of the AC mains power will automatically switch the system over to battery power.

1.10 Power On Indicator (7)

The "Power On" indicator remains illuminated (green) while the loudspeaker system is On. The Power On indicator also serves as a "Remaining Charge" indicator when the rechargeable battery is powering the system:

ySlow blinking LED

approximately 25% of battery charge remains

yFast blinking LED

less than 25% of battery charge remains

1.11 Battery Charging Circuit & Loading Indicator (8)

Note:

Before the system is used for the first time or if it has not been connected to AC mains power for several months, connect it to AC mains power supply (with the Power On switch in Position 0) and charge the battery for at least 6 hours.

The Loading indicator remains illuminated (red) while the battery is charging. After the battery is fully charged, the Loading indicator will be off and the built-in charging circuit will automatically switch to trickle charging. The charging circuit is completely separate from the amplifier power supply and will charge the battery from any state of charge, at a smooth, controlled rate up to a full charge. The power amplifier (when connected to AC mains) can deliver full power, even while a completely discharged battery is being charged.

Charging times (with the Power On switch in Position 0), for a completely discharged battery, are approximately as follows:

y6 hours

to 90% capacity

y10 hours

to 100% capacity

For a partially discharged battery, the charging time will be shorter.

The internal battery will not recharge when the loudspeaker is being powered by an external battery source. The built-in charger will not recharge external batteries connected to the EXT BATTERY socket.

For fastest battery recharging, set the Power On switch to Position 0 and connect the AC mains cable to an AC mains power supply.

The loudspeaker system, even with a fully charged battery, can be connected (long term) to AC mains power without damage to the battery. The system does not need to be continually connected to AC mains power when stored (see table below for remaining capacity) and may be stored for several months, although not recommended, without recharging. Battery lifetime is estimated to be approximately 3 years or approximately 5000 recharge cycles, with no memory effect.

Battery Self-Discharge During Storage, at 77 °F (25 °C):

Time since last full recharge	Remaining Capacity

3 months	91%

6 months	82%

12 months	64%

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