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IBM/Lenovo themselves supported dual batteries at one point with the Ultrabay expansion slots: https://www.thinkwiki.org/wiki/Ultrabay https://www.thinkwiki.org
by rzzzt 6y ago
IBM/Lenovo themselves supported dual batteries at one point with the Ultrabay expansion slots: https://www.thinkwiki.org/wiki/Ultrabay https://www.thinkwiki.org/wiki/Ultrabay