LiIon

This 2S850-10C Li-Ion avionic pack is capable of operating 3-4 high torque mini or micro servos for 5-6 flights. Equipped with a pair of JR-type leads (each rated at 5A), plus an Amass XT30 (rated at 30A), there's also a balance connector for monitoring the charge.

This 2S2000-10C Li-Ion avionic pack is capable of operating 4-5 high power servos for 5-6 flights. Equipped with a pair of JR-type leads (each rated at 5A), plus an Amass XT30 (rated at 30A), there's also a balance connector for monitoring the charge.

Batteries are often sold branded with variations on the words Durable, Reliable, Heartbeat, or some critter like Viper. Some make claims regarding something special (the implication manufacturers do it just for them). We call bullshit on this because hobby vendors buy batteries in quantities measured in thousands from manufacturers making millions/year. Meanwhile, nobody (not us, nor our competition) looks for poor quality cells because we're all aware of what's at risk, e.g. your RC model...

This 2S5000-10C Li-Ion avionic pack is capable of operating 8-10 high power servos for 5-6 flights. Equipped with a pair of JR-type leads (each rated at 5A), plus an Amass XT30 (rated at 30A), there's also a balance connector for monitoring the charge. Why so many connectors? Simple, it's because back in the day one single universal JR-type rated at 5A was enough. Thing is, these days it's not unusual for a model to be flying around doing nothing special and be drawing 5-7A, and if you begin...