At a glance

• The ThinkPad R30, R31, R32 Li-Ion Battery (02K6821, 02K6829) is a rechargeable system battery for the ThinkPad R30 Series. Spare system batteries can replace the original battery or be easily swapped in to extend the unplugged computing time of the ThinkPad. This battery option contains six cells providing an output of 10.8 V. It can be recharged in as little as 3.0 to 3.5 hours, depending on the Thinkpad system usage while recharging.
• The ThinkPad R30, R31, R32 Li-Ion Battery features:
• • 2.5 to 3.0 hours battery life depending on the ThinkPad model (without recharge)
  • Over-discharge protection
  • Li-Ion technology
  • Six cells

Warranty

1 year Limited - customer carry-in exchange

Packaging

You will receive one box containing the following items:

• Battery
• Publication

Product dates

• Availability Date: October 2001
• Discontinued, withdrawn from marketing: May 2008

Technical specifications

• Battery life: 2.5 to 3.0 hours without recharge
• Output voltage: 10.8 V dc (nominal)
• Charging current: 2.8 A (system on or off)
• Charge time
  • Power off: 3.0 hours
  • Power on: 3.5 hours

Weight

• lbs: .72
• g: 327

• inches: .81
• mm: 20.5

• inches: 2.35
• mm: 85.2

• inches: 5.94
• mm: 151

Operating temperature

• between 5 degrees Celsius and 35 degrees Celsius
• between 41 degrees Fahrenheit and 95 degrees Fahrenheit

Relative humidity

• Operating: between 10% and 80% (non-condensing)

Agency approvals

• CE MARK, UL, C-UL, C-Tick

Hardware compatibility

Related Information:

	Service parts
	Publications
	Lenovo Support: Batteries: Reference Guide - A list of other batteries
	Personal Systems Reference (PSREF) - Comprehensive information on the features and technical specifications of Lenovo products.
	All Day Computing (www.lenovo.com/alldaycomputing) - Information on batteries, including estimated battery life, and power adapters