Intel AXXRSBBU6 manual Battery Backup Unit Specifications, Battery Life and Data Retention Time

Battery Backup Unit Specifications

	Table 1. Battery Backup Unit Specifications
Battery Technology	LiON (Lithium ION) 1 cell
	10–45°C ambient temperature
Battery Operating Environment
	20% to 80% humidity non-condensing
	Depends on storage time,:< 30 days: 0–50 °C
Battery Storage Temperature
	30–90 days: 0–40 °C ‘; > 90 days: 0–30 °C
Fast Charge Current	500mAH using charge circuitry card
Battery Voltage	Nominal OCV: 3.7 V
Mechanical	2.611 inches x 2.122 inches
Battery Capacity	700 mAH
Memory Technology	DDR2 SDRAM (1.8 V)
	Typical: ~3 hours to charge from 1.8V OCV to 3.7V OCV
Battery Charge Time
	Completely depleted: 8 hours
Battery Shelf Life	1 year
Battery Operational Life	Intel provides a 1 year warranty on the AXXRSBBU6.
Supported Cache Memory	128 - 512 Mbytes
Memory	DDR2 SDRAM 667 MHz (1.8V), max 40-bit bus width
MTBF (Electrical Components)	2,490,772 hours at 40° C
	Temp monitoring via I2C interface. Supports v1.1 “Smart Battery
Smart Battery Monitoring
	System Manager”
	Ability to detect the presence of an external auxiliary power source.
Auxiliary Power	Circuitry automatically chooses aux power, defers discharge until aux
	power is removed or exhausted. Auxpower increases the DRT ratings

Battery Life and Data Retention Time

The Intel utilities display a counter showing the number of times a BBU has been recharged. When you replace a BBU, you should run the utility program and reset this counter to zero for the new BBU. Intel recommends that you replace the battery pack on the BBU once a year or after 500 recharging cycles, whichever comes first. The warranty on the battery pack is for one year.

The data retention time is 72 hours (low power) if using the RAM shown below. This rating is approximate and can vary based on battery load, ambient temperature, and number of discharge cycles associated with the battery.

•256 Mb using (3) 64Mx16 DDR2

•128 Mb using (3) 32Mx16 DDR2

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