Premium High Density Amprius SA112 Li-Ion Battery 19500mAh 41.5V 39A Max (TN12S3P-SA112)

Specifically engineered for advanced UAVs, robotics, and high-endurance aerial systems that value energy density over peak current, this premium high density Amprius SA112 battery delivers 810Wh of energy while maintaining a lightweight 2.8kg form factor. Featuring a nominal voltage of 41.5V and 19.5Ah capacity, the pack uses Amprius SA112 cells for a 308 Wh/kg energy density, ahead of SA17's 300 Wh/kg. The trade-off is discharge rate: 39A max continuous and 78A peak pulse, lower than SA17's 54A/90A. In exchange, SA112 carries the highest cycle-life ceiling in the Amprius 21700 family: 1,000 cycles to 90% SOH at 70% DOD, or 500 cycles to 80% SOH under a harder +3.0A/-7.5A test. Optional Smart BMS enables remote communication and monitoring through CANBUS, RS485, or UART.

• Higher Energy Density: 810Wh at 308 Wh/kg, 2.8kg weight
• Stated Trade-off: 39A continuous / 78A pulse, lower than SA17's 54A/90A, for better Wh/kg and cycle life
• Best Cycle-Life Ceiling in the Family: 1,000 cycles to 90% SOH (70% DOD)
• Smart BMS Ready: Optional CANBUS, RS485, or UART connectivity for telemetry and protection
• Compact Footprint: 75 x 80 x 300 mm size fits most mid- to large-format UAVs and robotics platforms