This HQST 30 Amp PWM solar charge controller integrates highly efficient PWM charging to increase battery life and improve PV system performance. It supports charging various 12V and 24V battery banks, including lithium and lead-acid batteries. It also features an LCD screen for displaying system operation information and data, and allows for full control of parameter settings.
Battery voltage: 12/24V
Battery Working Voltage: 8V - 32V；
USB Output: 5V/2A；
Charge current: 30A
Max. PV input power: 450w/12v; 900w/24v
Operating Temperature: -31°F to 140°F
Weight: 0.64 lbs
Dimensions: 6.3 x 3.9 x 1.5 in
Enclosure Protection: IP32
Terminals: 8 AWG to 14 AWG
2-year material warranty
Yes, it works. This solar charge controller supports LiFePO4, Ternary Lithium, Gel, Flooded, AGM, and Sealed (Lead-Acid) batteries.
No, it only supports 12V and 24V batteries.
In charge controllers, positive ground or negative ground refers to how the controller is wired internally. Positive ground means all the positives are hard-wired together, and the internal switching happens on the negatives. The negative ground is the opposite. It doesn't matter as long as your solar +/- runs to the charge controller and isn't grounded anywhere else. If you grounded the battery positive AND the solar positive, then you'd need a positive ground controller.
No, it doesn't. We recommend adding an external fuse between the charge controller and battery bank for safe system operation. To determine the fuse size needed between the charge controller and battery bank, you can match the amperage rating on the charge controller. For instance, if you're going to install this 30Amp charge controller, we recommend using a 30Amp fuse.
The maximum input solar power for a 12V battery system is 450W while for a 24V system it's 900W.
A solar charge controller is a regulator for your solar battery that prevents it from overcharging. Batteries are rated for voltage capacity, and exceeding that voltage can lead to permanent battery damage and loss of functionality over time. Solar charge controllers act as a gate to your battery storage system, making sure damage doesn’t occur from overloading it.
PWM (Pulse Width Modulation) Charge Controllers work by slowly reducing the amount of power going into your battery as it approaches capacity. When your battery is full, PWM controllers maintain a state of "trickle", which means they supply a tiny amount of power constantly to keep the battery topped off. PWM controllers are more suited for small DIY solar systems with a couple of low voltage panels and a small battery.
30 Amp represents the max amount of amps the controller can output going into the batteries.
Dual USB ports pull power from the battery.