Sylimikron akku (vastaavuus: HP HSTNN-I17C, HP CA09, HP CA06XL, HP E7U21AA, HP 718754-001, HP 718755-001, HP 718756-001, HP 718757-001, HP CA06, HP HSTNN-DB4Y, HP HSTNN-LB4X, HP HSTNN-LB4Y, HP HSTNN-LB4Z, HP CA06055XL, HP HSTNN-I15C-4, HP HSTNN-I15C-5, HP HSTNN-I16C, HP 718677-421, HP 718676-241, HP 718677-221, HP 718678-421, HP CA06055, HP CA06055-CL, HP E7U21UT, HP E7U22AA, HP E7U22UT, HP H5G74E, HP HSTNN-DB4X, HP HSTNN-IB4W, HP HSTNN-LP4Z), Litiumioni, 6-kennoinen, 4400 mAh, 48 Wh malleihin HP ProBook 640 G1 Notebook, 645 G1 Notebook, 650 G1 Notebook, 655 G1 Notebook