MOTOROLA HKNN4013A - High-Capacity Li-Ion Battery (BT90)The Motorola HKNN4013A (also known as the BT90) is a genuine high capacity Lithium Ion rechargeable battery designed to provide extended operational life for professional two way radios. Engineered for high demand environments, this battery significantly increases talk time, allowing teams to remain connected throughout double shifts or long workdays without the need for midday recharging. Its slim, lightweight profile ensures the radio remains