the blackheart board for the sp1 is very battery friendly. mine still has the same smart parts rechargable 9v in it that it started with. Id highly suggest looking into their recharge kit and 4 or 5 batteries. I have 4 specifically for hoppers, and 2 for markers.
Spekta CSL- GOG eXTCy - Red Angel Fly SB -Sunburst Tx Storm G6r -Pink/white ripper vic - brown/khaki ripper vic - pink/Silver CCM Series 6.5 - Blackheart SP1 - Rasta A4 fly - Custom FBM Cobra Sniper - Red 06 Macdev Cyborg - Black/Pink DM8 - TKO Classic automag w/ logic rail -ANS phase II Classic Mag w/Tac one body -Yellow Emag-(2) Kingman Hammers - BT4 combat- red w black parts e2 Karnivor - Evil pimp - Empire Trracer - Tac8 - Rasta A1 fly - black/red fade 05 Ego