Lenovo ThinkPad X131e Battery This brand new Lenovo ThinkPad X131e battery features lithium-ion cells. Li-ion battery technology provides longer run times with less weight. Li-ion batteries are not subject to the memory effect common with older battery technology. This ThinkPad X131e battery is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty. Tech Specs Xtend brand; 10.8 Volts - also SAME AS 11.1 Volt systems; 5200 mAh; 6 Cell Li-ion; Samsung (South Korea); Black; Assembled in China; 2 Year Warranty; 30 day full satisfaction guarantee; 300-500 recharge cycles; You can expect about 2 hours to 3 hours of run time with this Lenovo X131e battery when new, depending on your energy use.
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Lenovo laptop battery part numbers: 42T4943 42T4945 0A36290 0A36292 FRU 42T4947