CBK 2500mAh Battery for KNB-31A KNB-31 KENWOOD TK-2180 TK-2180K TK-3180 TK-3180K KNB-32 KNB-32N KENWOOD TK-5210 TK-5310 TK-5210K TK-5310K Voltage: 7.2V Capacity: 2500mAh Condition: Brand New Replacement Product, works as Genuine parts, 100% OEM Compatible!! Fast Shipping from CA, US.