Nosram, Battery Pack, models:

VTEC LiPo-7.4V-2S	User Manual
VTEC X-treme Race-1S-3.7V	User Manual
VTEC lithium-polymer power LiPo Pack-7.4V-2S	User Manual
XTEC RX-Packs 6.0V	Manual
p-max VTEC 1600EC Extra Capacity RX-Pack-6.0V-1600mAh-Hump	User Manual
power maniax Sport Pack 7.2V	User Manual