Battery Tender 021-1178 30A PWM Solar Charge Controller (12V/24V) efficiently manages solar power to extend battery life and performance. Designed for both 12V and 24V lead-acid, AGM, GEL, and lithium batteries, it automatically adjusts charging voltage with temperature compensation. The LCD display and LED indicators provide real-time monitoring, while programmable timers and 3-stage charging ensure optimal battery maintenance and protection.
Features:
- 30A PWM solar charge controller with 8 programmable timers and adjustable charging voltage.
- Temperature sensors to optimize battery charging and extend lifespan.
- LCD display and LED indicators for easy monitoring and self-diagnosis.
- 3-stage charging automatically adjusts output based on battery connection, voltage, and charge level.
- Supports 12V and 24V batteries, with max input 50V and max output 12V/450W or 24V/900W.
- Dual USB ports for charging electronic devices.
- Spark-proof and reverse polarity protected for safe operation.
Benefits:
- Extends battery life with optimized charging and maintenance.
- Easy tracking of battery status with visual LCD and LED indicators.
- Safe and reliable operation with reverse polarity and spark protection.
- Compatible with multiple battery types and voltages for versatile use.
- Convenient USB ports allow charging of mobile devices on the go.
Technical Specifications:
- Model: 021-1178
- Output: 12V DC / 30A max
- Input Voltage: Up to 50V
- Battery Compatibility: Lead-acid, AGM, GEL, 12V lithium
- Charging Modes: 3-stage PWM with programmable timers and voltage
- USB Ports: Dual ports for charging devices











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