BTI - Notebook battery (equivalent to: Lenovo L15L4PC2, Lenovo L15M4PC2, Lenovo 5B10K90778, Lenovo 5B10K90802) - lithium ion - 4-cell - 6960 mAh - 53 Wh - for Lenovo Yoga 710-14IKB 80V4, 710-14ISK 80TY, 710-15IKB 80V5, 710-15ISK 80U0