Thank you for recomending the EBL 1800mAh 3.7V Replacement Sp 803048 Battery. Other than having to adjust the battery wires, the procedure went smoothly. I switched out the battery while replacing the headphone cushions with Wicked Cushions. https://wickedcushions.com/products/cors...-hs60-replacement-earpads?variant=40657231970383