There are a few factors that will determine how many you need... Mainly the regime of the club or series you are running, and also the number of racers on the day..
Low numbers means you'll get through your rounds quickly and may not get time to re-charge, therefore one pack wouldn't do.. But if you have plenty of time, it may.
2 is practical, used alternatively for practice, heats and finals, charging whilst using the other.
Difficult to say, but a few things to think about when you make your mind up on qty.
|