HQST 20 Amp PWM Duo Battery Charge Controller applied Pulse Width Modulation (PWM) technology to help regulate the power from your solar panel to battery. This dual battery solar regulator adopts the most advanced digital techniques and operates fully automatically.This PWM charge controller features dual battery charging capability making it great for RVs, caravans, and boats. With its advanced PWM charging technology, your batteries will be protected from discharging and over-charging. The PWM battery charging can greatly increase the lifetime of your battery and has various unique functions and quite easy to use features.
The main advantage of Pulse Width Modulation (PWM) is that power loss in the switching devices is very low. When a switch is off, there is practically no current. When the device is on, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set to the needed duty cycle.
The Controller is Negative Grounding.
You can add a HQST Tracer Meter MT-1 to easily monitor your solar energy system.
- Micro controller digital accuracy
- High Efficiency PWM charge mode State of charge(SOC)
- Temperature compensation
- Automatic detection of the voltage
- Short circuit protection
- Battery Reverse polarity protection
- Reverse current protection at night
- Over charging or discharging protection
- Over load protection
- One (1) HQST 20 Amp PWM Duo Battery Charge Controller
|HQST 20 Amp PWM Duo Battery Solar Charge Controller|
|Nominal System Voltage: 12V/24V Auto recognition||Max. PV Input Power: 120W (12V), 240W (24V)|
|Rated Charge Current: 20A||Maximum Battery Voltage: 30V|
|Rated Load Current: 20A||Max.Solar input Voltage: 30V (12V), 55V (24V)|
|Operating Temperature: -31°F to +131°F||Self Consumption: 4mA (idle), 10mA (charging)|
|Terminals: 10AWG||25% Current Overload: 1 Minute|
|Dimensions: 6.02 x 2.95 x 1.27 inches||Weight: 6.8 oz.|
|Note: all the data is for 12V, for 24V, please use 2x.|
- If you want to add a tracer meter, both batteries must be connected to the charge controller, otherwise there will be a default error.