4S30A BMS for UAV - AYAA TECHNOLOGY CO., LTD

Model Number AY-LB4S30A-T040 Communication Interface SMBUS Charging voltage DC：16.8V CC/CV（4.2v/Cell）4s Maximal continuous charging current 30A Maximal continuous discharging current 30A Current consume in normal operation  ≤500uA Over discharge detection voltage 2.70±0.1V Over charge detection voltage 4.25±0.05V Charge Over current detection current 1 22±2A ChargeOver current detection current 2 30±2A Discharge Over current detection current 1 60±2A Discharge Over current detection current 2 70±2A Short Protection YES Technical Specification size L65 * W34.7 * T4 mm NTC 10k Temperature switch / ℃(the batteries temperature) Weak currentswitch / Active balance / Heater / Braking Resistors / Other Parameter Low temperature protOperating Temperature Range -40～+85℃ Storage Temperature Range -40~+125℃ Temperature Parameter LCD display screen / LED light board / Bluetooth mode / 4G / GPS / Optional Configuration - AYAA TECHNOLOGY CO., LTD

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  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV
  • 4S30A BMS for UAV

4S30A BMS for UAV

  • Prevents charging beyond the voltage limit
  • Stops discharging below safe levels.
  • Protects against excessive current
  • Prevents damage from short circuits
  • Manages overheating and low temperatures
  • Ensures uniform voltage across cells
  • Enables real-time monitoring via SMBUS
  • Optimizes energy flow and stability.
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Parameter information Product Detail
Model NumberAY-LB4S30A-T040
Communication InterfaceSMBUS
Charging voltageDC：16.8V CC/CV
（4.2v/Cell）4s
Maximal continuous charging current30A
Maximal continuous discharging current30A
Current consume in normal operation ≤500uA
Over discharge detection voltage2.70±0.1V
Over charge detection voltage4.25±0.05V
Charge Over current detection current 122±2A
ChargeOver current detection current 230±2A
Discharge Over current detection current 160±2A
Discharge Over current detection current 270±2A
Short ProtectionYES
Technical Specification
sizeL65 * W34.7 * T4 mm
NTC 10k
Temperature switch/ ℃(the batteries temperature)
Weak currentswitch/
Active balance/
Heater/
Braking Resistors/
Other Parameter
Low temperature protOperating Temperature Range-40～+85℃
Storage Temperature Range-40~+125℃
Temperature Parameter
LCD display screen/
LED light board /
Bluetooth mode/
4G /
GPS /
Optional Configuration



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