Motorola PMPN4591B 6 Port Charging Station 

The Motorola PMPN4591B IMPRES 2 Desktop Charger is designed for various radios including the APX N70 and APX NEXT XN All Band. It has 6 pockets and includes a US power supply.  Motorola PMPN4591B will charge six radios, six batteries, or a combination of them while conditioning the batteries for peak performance.  Motorola PMPN4591B multi-chargers are protected by a one year warranty.  

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My charger has an A at the end of the part number, will the PNPM4591B work?  Yes, the letter at the back of the radio indicates which generation the accessory is.  An A version accessory is older than the B version.