Battery Tender 30 Amp 12V/24V Solar Charge Controller


The Battery Tender 021-1176 is a 30A solar panel controller that prodvides efficient MPPT charging to increase battery life and improve performance. Compact and easy to install, this advanced charge controller is designed for remote power solar applications and can be used with 12 volt and 24 volt, lead-acid and AGM batteries as well as 12 volt lithium batteries. Once hooked up, the controller will automatically detect the voltage of the battery and then begin regulating the charge from the connected solar panel.


  • Efficient Maximum Power Point Tracking (MPPT) Charging
  • Maximum Input Voltage: 100V
  • Maximum Input Power:
    • 12V @ 500W
    • 24V @ 1000W
  • Maximum Output: 12VDC, 30 Amps
  • USB Output: 2, 5VDC @ 2 Amps

Three Stage Charging

  • Initialization: determining correct connection, battery voltage and charge level
  • Low Voltage Protection: when the battery drops below the selected voltage, the output load will turn off and the battery will recharge (default 10V)
  • Low Voltage Recovery Re-Engage: when the battery has charged back up to the selected voltage, the output load will turn on (default 12.5V)


  • Temperature Sensor Cable for Lead Acid / AGM Batteries

More Information
Part Number 021-1176
Charger Mode Automatic
Charger Type Solar
Dimensions 9.4" x 6.7" x 2.5"
Warranty 2 Year (Limited)
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