ChargePAK E1 Our optional in-unit rechargeable battery pack, ChargePAK can be fitted in seconds to provide true ‘fit and forget’ portability. Just plug your radio into the mains and ChargePAK charges while you listen for hours of portable listening. This unit is for use with the following models only Evoke-1S Evoke-2S Evoke Flow Evoke Mio Price: £39.99