Fast:

Have you looked at the A123 battery pack for your ignition. I have a Wild Hare Extra 300 with a DA-50. I use a separate 2300 mah A123 battery pack for the ignition. I easily get 5 flights out of the pack and can re-charge it in 5 minutes. They are rated for more flights but I play it safe and recharge after 5. If you want some info on them go to www.sincityjets.com Since I bought them, I do not use nimh or nicad batteries and they are safer than lipos as A123 betteries do not have the fire or explosion issues of lipos