VoCALL Compact User Guide & Log Book
Batteries
The VoCALL Compact requires a single 12V 3.2AH sealed lead acid battery to provide backup power in
the event of mains failure as defined in BS5839pt9 for 24 hours standby and 30 minutes operation.
For 72hour standby and 1 hour operation a single 12V 7AH battery is required, the monitored charger in
the VoCALL Compact is capable of charging and monitoring these batteries.
Safety Information:
Sealed Lead acid batteries contain sulphuric acid which can cause burns if
exposed to the skin, the low internal resistance of these batteries means large
currents will flow if they are accidentally short circuited, causing burns and a risk
of fire- exercise caution when handling batteries.
Power Up Procedure:
Always apply mains power before connecting batteries, do not commission
VoCALL Compact on batteries, as the high inrush current required by the power
supply may rupture the battery fuse.
Always connect the Positive (Red +) terminal first.
Power Down Procedure
Disconnect the batteries before removing the mains power; always remove the
negative (Black – terminal) first
.
The VoCALL Compact EVCS is designed and manufactured in the UK by
Current Thinking Ltd,
Unit 91 Silver Briar
Enterprise Park East,
Sunderland,
SR5 2TQ.
info@current-thinking.com
Document DCC VCC7002-01 Rev 0 September 2008
Page 6 of 12
