Mychron 5 Lithium Battery
Save time and money with the rechargeable Lithium battery
Forget the expensive and short-lasting traditional 9V batteries: the MyChron 5 rechargeable lithium battery lasts more than ten hours. Charge it as you do with your cell and just enjoy your racing all day long.
Of course, MyChron 5 can also be powered by an external 12V power source.