Samsung HM1800 - Manual (Page 9)

6
Charging the headset
This headset has a rechargeable internal battery which is non-removable. Make sure
the headset is fully charged before using it for the first time.
1 Connect the travel adapter to the charging socket on
the headset.
2 Plug the travel adapter in to the wall outlet. During
charging, the indicator light will turn red. If charging
does not begin, unplug the travel adapter and plug
it in again.
3 When the headset is fully charged, the red indicator
light changes to blue. Unplug the travel adapter from
the wall outlet and the headset.
• Use only Samsung-approved chargers. Unauthorized or Non-Samsung
chargers could cause damage to the headset or in extreme circumstances an
explosion, it could also invalidate any warranty on the product.
• Repeatedly charging and discharging of the headset, over time will cause the
battery performance will diminish. This is normal for all rechargeable batteries.