XSMB-C14 Replacement X10DR Handset Battery.
End of Battery life?
when you notice the X10DR sounding a small chirp every five minutes, it indicates the battery is nearly flat and should be re-charged. The unit will self-power down when voltage drops to the minimum level. When you notice this occurring far more often than usual, it may mean it is time for the battery to be replaced.Like all re-chargeable products, periodic replacement of the internal battery is required. The handset features a high capacity Lithium-Ion battery. To maximize the life of a Lithium battery its is better to keep it topped up by returning it to the charger often rather than waiting for it to first go flat - which was the opposite case with older nickel-based batteries. Typically you can expect to get about 500 complete re-charge cycles before requiring replacement.