Warranty

In general, the Company provides warranty coverage of 1 year on mobile computers and WLAN products. Advanced data capture products are warrantied from 1 to 5 years, depending on the product. Printers are warrantied for 1 year against defects in material and workmanship. Thermal printheads are warrantied for 6 months and batteries are warrantied for 1 year. Battery-based products, such as location tags, are covered by a 90-day warranty. The provision for warranty expense is adjusted quarterly based on historical warranty experience.

The following table is a summary of the Company’s accrued warranty obligation (in millions):



	Nine Months Ended
	October 1, 2016			October 3, 2015
Balance at the beginning of the period	$	22		$	25
Warranty expense	20			23
Warranty payments	(22		)	(24		)
Balance at the end of the period	$	20		$	24