Checkout guide

Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.

To check the battery pack, do the following:

1.Power off the computer.

2.Remove the battery pack and measure the voltage between battery terminals 1

(+) and 7 (−). See the following figure:

5

1(+) 2(+) 3 4

7(-) 6(-)

Terminal

Voltage (V dc)

 

 

1

+ 0 to + 12.6

 

 

7

Ground (−)

 

 

3.If the voltage is less than +11.0 V dc, the battery pack has been discharged.

Note: Recharging will take at least 3 hours, even if the indicator does not turn on.

If the voltage is still less than +11.0 V dc after recharging, replace the battery.

4.If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 5 and 7. The resistance must be 4 to 30 K .

If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.

Checking the backup battery

Do the following:

1.Power off the computer, and unplug the ac adapter from it.

2.Turn the computer upside down.

3.Remove the battery pack (see “1010 Battery pack” on page 58).

4.Remove the backup battery (see “1120 Backup battery” on page 79).

5.Measure the voltage of the backup battery. See the following figure.

Red (+)

Black (-)

Wire

Voltage (V dc)

 

 

Red

+2.5 to +3.2

 

 

Black

Ground

 

 

vIf the voltage is correct, replace the system board.

vIf the voltage is not correct, replace the backup battery.

vIf the backup battery discharges quickly after replacement, replace the system board.

32MT ThinkPad® ThinkPad R60, R60e, R61, and R61i

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Lenovo R61I, R60E manual Checking the backup battery, Terminal Voltage V dc, Wire Voltage V dc
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R60E, R61I, R61 specifications

The Lenovo R61, R61I, and R60E are part of the ThinkPad series, known for their reliability and productivity features tailored for business users. Launched in the mid-2000s, these laptops integrated robust design with high performance, making them popular choices for professionals.

The Lenovo R61, an evolution of the R60 series, features a 14.1-inch widescreen display with a resolution of 1440x900 pixels. It offers enhanced visual clarity suitable for multitasking and productivity applications. The laptop is powered by Intel's Core 2 Duo processor, which provides impressive performance with low power consumption. Coupled with up to 4GB of RAM, the R61 can handle demanding applications, making it ideal for users needing reliability in their workflows.

The R61I variant caters specifically to users who seek a balance between performance and cost. While it retains many core features of the R61, such as the Intel processors and the same display options, it comes with slightly reduced specifications. This makes the R61I a budget-friendly choice without sacrificing essential functionalities, providing a solid option for small businesses or students.

The R60E serves as a budget-friendly alternative in the series, featuring a 15.4-inch display that provides adequate screen real estate for everyday tasks. It supports a lower-end Intel processor, making it suitable for general use, such as word processing, web browsing, and emails. The design remains sturdy, featuring the hallmark ThinkPad durability, ensuring these laptops can withstand daily wear and tear.

All three models incorporate Lenovo’s unique keyboard design, known for tactile feedback and spill resistance, enhancing the user experience during lengthy typing sessions. Furthermore, these laptops come equipped with a variety of ports, including USB, VGA, and ethernet, facilitating connectivity with multiple devices.

Security features are another hallmark of the R61, R61I, and R60E series. They include a fingerprint reader and a Trusted Platform Module (TPM), providing users with secure access options and data protection. The laptops support various hard drive configurations, including options for SSDs, enhancing speed and reliability.

In summary, the Lenovo R61, R61I, and R60E are commendable options within the ThinkPad lineup, blending performance, durability, and versatility. Whether for demanding professionals or budget-conscious students, these laptops remain relevant in providing efficient computing solutions.
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