IBM / Lenovo 42T4670 - 6-Cell 41+ Battery for ThinkPad T60, T61, R60, R61, Z61, T61p, T60p, T500, W500, SL500 - CPU Medics
Amazon.com: Lenovo Thinkpad T500 15.4-Inch Black Laptop - Up to 6.3 Hours of Battery Life (Windows XP Pro) : Electronics
Found a T500 in my "Lithium Battery Donations" box. Good physical shape (needs a deep cleaning). Looks like a SIM slot too? Is this worth restoring for the kids' ChromeOS Flex machine?