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Lenovo ThinkPad R31 Power Adapter
When choosing a new AC charger, the actual Lenovo brand is usually going to be the safest choice. The Lenovo ThinkPad R31 power adapter is needed for two reasons, charging the battery and to provide a source of power for the unit. Because Lenovo uses one power charger that can be used on other units, double-check the part number or model number of the adapter. A universal AC adapter is a possibility if you absolutely need to. If you decide to buy an non-Lenovo adapter, it is imperative to note the output of amps and voltage.
Key symptoms poorly running laptop charger
- The laptop does not work without the battery installed
- Most Lenovo adapters will get warm to the touch when plugged in for 10 minutes or more
- Battery does not charge up whatsoever
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