This is a generic, equivalent one, 100% compatible. This 7.4V 3300mAh Replacement Li-ion battery is designed to compatible with Kenwood TK-2180 TK-3180 TK-5210 TK-5310 NX-410 NX-411.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 7.4V
* Battery Capacity: 3300mAh
* Chemistry: Li-ion
* Condition: new, 1 Year Warranty!
* no memory effect so that you can charge battery at anytime.
* Integrated microchip prevents overcharging & lengthens battery life.

Compatible Part Number:
KNB-33L, KNB-43L

Compatible with the following Kenwood radios:
Kenwood TK-2180, TK-2180K, TK-2180K2, TK-3180, TK-3180K, TK-3180K2, TK-5210, TK-5210G, TK-5210GK, TK-5210GK2, TK-5210GK3, TK-5210GK7, TK-5210K, TK-5210K2, TK-5310, TK-5310G, TK-5310GK, TK-5310GK2, TK-5310GK3, TK-5310GK4, TK-5310GK5, TK-5310GK6, TK-5310GK7, TK-5310K, TK-5310K2, NX-410, NX-411

Package Included:
1 x Replacement for Kenwood TK-2180 TK-3180 TK-5210 TK-5310 NX-410 NX-411 Li-ion Battery 3300mAh