This is Maclan Racing Graphene V3 HV ULCG Stick 5500 mAh. 

The Maclan Racing “Race Formula Graphene V3” battery is our latest 2020 chemistry. We continuously evolve the batteries with the latest technology to improve capacity/weight ratio (for better physical spec) along with lower IR (for better discharge performance). We also created all new ULCG (Ultra Low Center Gravity) super slim case options for both stick and shorty styles. Those will provide more competitive performance for extreme racers.  The Graphene V3 offers all the popular configurations, (stick and shorty) for both on and off road applications.

Features:

• Better weight/ capacity ratio = Lighter weight with more power
• Better discharge curves = Better voltage holding at the end of race
• All new ULCG (Ultra Low Center Gravity) case options
• 5mm bullet type connectors for maximum power throughput
• 10C maximum charge rate, 3C charge rate recommended for the longest life span
• 7.6V (2S) nominal voltage
• Dimensions (LxH): 139x19.5mm
• Weight: 230g
• ROAR approved