3M XT-1 - Making Sure Batteries Are Ready for Use; Important Information about Rechargeable Batteries

3M™ Wireless Communication System Model XT-1
Store Manager Operating Instructions
November 2011 - Revision 1.8
Page 35 of 65
Maintenance
Making Sure Batteries are Ready for Use
Follow these tips to make sure batteries are always ready for use:
 • Haveanextrabatteryforeachheadset.Thishelpsensurethat
a fully charged battery is always available.
 • Rechargealowbatteryassoonasitisremovedfromtheheadset.Whenabatteryislow,
repeat messages are heard in the headset for 2 minutes, and then the headset shuts off.
 • Keepthebatteryandchargercontactsclean.Useacottonswabandapprovedcleaner
in accordance with manufacturerís instructions to clean the contact surfaces.
 • Rememberthatabatteryrechargetakesapproximately31/2hours.
 • Avoidremovingandreinsertingbatterieswhiletheyarecharging(chargingstatusindicatorisRED).
 • RememberthatbatteriesdischargefastestduringTalkandPage
operation. Avoid unnecessary communications.
 • AlwaysusetheOn/Offswitchtopowerofftheheadsetbeforeremovingthebattery.
Important Information about Rechargeable Batteries
Keep the following information in mind as you operate the system and as you establish operating procedures:
 • Each3M™WirelessCommunicationSystemModelXT-1batterycontainsaninternal
protective device to prevent unsafe discharge rates. But, as with any battery, avoid
shorting across the battery contacts with metal items. Never carry a battery in a pocket
or place it in a drawer where it can accidentally be shorted by keys, coins etc.
 • Haveadequatechargingcapacityforthenumberofheadsetsinyoursystem.One3-slotbatterycharger
willhandleuptothreeheadsets.Useofmorethanthreeheadsetsrequiresa6-slotbatterycharger.
 • Batteriesperformbestatmoderatetemperatures.Extremesofheatandcoldreducetheirperformance.
 • Anunused3M™WirelessCommunicationSystemModelXT-1batterylosesvepercentofits
charge per week. Batteries that have not been used for several weeks should be recharged before use.
The four-character date code stamped on each 3M battery (wwyy) refers to the week
and the year the battery was manufactured. Batteries are generally usable for two years
beyond that date. Batteries used more often will need replacement sooner.
WARNING
Do not open, crush, expose to heat above 200 °F (93 °C) or incinerate the battery.