Last Updated: December 9, 2019 (Refresh Now)
HQST 20 Amp 12V 24V PWM Common Postive Solar Charge Controller with LCD Display and 5V 1A USB Port Compatible with Sealed Gel Flooded Lead Acid and Lithium Batteries
Last Updated: December 9, 2019 (Refresh Now)
7.0
SCORE
/10
Total Reviews
245
Old Reviews
123
Unverified
13
Spam Test
PASS
Yes
USB
LCD
TYPE
Review Analysis - 109 recent, verified reviews
Detailed Mode
Charging
25solar, voltage, pv, controller, panels
+72%
-28%
" ... The feature set of this solar charge controller is great -- able to charge LiIon, Sealed Lead Acid, Gel, and standard Lead Acid batteries, adjustable load cut off range, etc. ... "
" ... I used it to charge my RV batteries with four 120 W panels (current was never more than about 22A due to panel efficiency). ... I really like being able to read the charge current. ... Four stars because you have to have battery power before solar power, although this seems to be common among the less expensive controllers. ... "
" ... Charges even without direct sunlight. ... "
" ... I use this charge controller for my RV when not in full hookup sites. ... i like the fact that I can scroll through and see exactly what the charger is doing. ... I paired this with a single 300 watt solar panel and keep 2 deep cycle batteries charged year round. ... "
" ... I've added a video showing how I made it element proof for charging my trolling battery. ... "
" ... (Simply put an equalize charge over charges a wet cell battery for a short time to help keep all the cells equally charged. ... My set up is 160 watts of panels charging a marine wet cell battery. ... "
" ... Haven't used it, but the ability to charge USB items is certainly convenient if this unit had been installed in a more accessible location. ... "
" ... I intend to power a 10W night light in a remote building and run a battery trickle charger for my ATV in the winter. ... The battery voltage with the vacuum off was shown to be 14.4V, 100% charged, PV 0.2A and load 0.0A. ... On switching on the vacuum, the battery voltage dropped to about 12.2V, 33% charged, PV 6.0A and load 7A. ... So, the charged battery was receiving a low trickle of just 0.2A. ... (>12.6V is fully charged), not 33%. ... The battery charge percentage was now 96%. ... I hooked up my inverter to the "load" circuit and charged my ATV with a Battery Tender overnight. ... This morning, the ATV was on a trickle charge of 0.1A with 0.2 PV amps. ... I had to reset to "17" from "0" for a daytime phone charge during a power outage this morning. ... However, using the inverter and the phone's fast charger gives that functionality. ... With one phone on USB power and one on the inverter/fast charger via the "load" terminals, the battery was at 12.2V/63%, PV 0.8A {with an actual measured PV voltage of 12.4V and current of 0.83A under overcast noon conditions} and load of 1.2A. ... "
Product Reliability
23month, worked great, months, died, 6 months
+70%
-30%
" ... Bought it in Dec. Was working great. ... "
" ... Product worked great for about 1 year. ... "
" ... This controller has been working flawlessly for over a month now. ... "
" ... I had a backfeed on that one that blew the internal soldered fuse which i was able to repair, but ultimately decided i didn't trust any longer. ... "
" ... Working fine for me after about a couple of months. ... "
" ... I purchased it back in Feb 2018 and it has worked great. ... "
" ... I would love to leave a 4/5 star review for this product, but after 6 months, it developed glitches, and seller won't honor warranty. ... For 6 months, it has plugged right along functioning as it should with my current setup. ... About a month ago, I found two 'glitches'. ... "
" ... The E0 parameter indicates that there are no errors. ... It ran fine. ... Obviously not a very reliable parameter ... So far, everything seems to be working as it should. ... "
Battery Life
19solar, controller, percentage, panels, inverter
+58%
-42%
" ... I purchased this solar controller for charging lithium iron phosphate battery. ... "
" ... I use this charge controller for my RV when not in full hookup sites. ... "
" ... Currently charging two 35ah 12v batteries with no issues. ... I may have misread the product description but i thought that this controller allowed switching between battery types but this is a non issue as the AGM sealed batteries i have are working fine with this. ... "
" ... (Simply put an equalize charge over charges a wet cell battery for a short time to help keep all the cells equally charged. ... My set up is 160 watts of panels charging a marine wet cell battery. ... The battery is connected to an inverter. ... "
" ... I used it to charge my RV batteries with four 120 W panels (current was never more than about 22A due to panel efficiency). ... I really like being able to read the charge current. ... Four stars because you have to have battery power before solar power, although this seems to be common among the less expensive controllers. ... "
" ... Metered the batteries and they were fine. ... All in all, they replaced the item free of charge within 2 days. ... "
" ... Keeps the system charged, and does equalization once a month. ... The Gel profile is keeping the battery nice and charged from my mighty mule. ... "
" ... I've added a video showing how I made it element proof for charging my trolling battery. ... "
Display Clarity
11display, panel, solar panel, show, screen
+45%
-55%
" ... No display, no output. ... "
" ... Display is very dim and looks like it won't last much more than a month. ... "
" ... Just installed this unit, could not get it to show the panel as producing,just the moon symbol for night. ... "
" ... Screen is dead and won't come on. ... "
Ease of Use
9read, use, setup, set, figure
+100%
" ... Easy to use ... "
" ... Easy to install! ... "
" ... Working great so far, and easy to hook up and program. ... "
" ... Easy to figure out and understand ... "
" ... Does the trick and easy to set and operate but I'll probably have to replace it in a month or two. ... "
" ... It’s wirk flawlessly for my setup. ... "
" ... I love all the system checks, setups, choices, ease of use . ... "
Cables
9wire, screws, cable, upwards, thereby
+67%
-33%
" ... This is a great product but the screws do not line up very well with the holes so not always easy to connect the wires in. ... "
" ... A good buy and it takes large gauge wire. ... "
" ... I like the connectors where you clamp the wires. ... "
" ... i used cable #10, it fits cable 8 etc . ... "
" ... Huge cable fittment. ... Using 8awg and can fit easily bigger cables ... "
" ... this is awesome controller: specifically the wire connector holds the wires (no matter what size 8~12 awg). ... "
Setup
8setup, easy to install, easy, translated, settings
+75%
-25%
" ... Easy to install! ... "
" ... Working great so far, and easy to hook up and program. ... "
" ... Easy to install, plug in the wires from the panel and battery and you'll get the information you want. ... "
" ... It’s wirk flawlessly for my setup. ... "
" ... Installation was simple, connections were simple and the instructions are easy to follow. ... "
" ... When I set this up in Oct., and configured it, it worked great. ... For 6 months, it has plugged right along functioning as it should with my current setup. ... Bottom line, it worked great when first setup, and now, features are blinking out. ... "
Marketplace
8seller, hqst, described, contacted, advertised
+88%
-13%
" ... Works as described ... "
" ... Thanks for the quick replies. ... "
" ... Contacted HQST through Amazon and they responded within the hour. ... "
" ... Works as advertised. ... "
" ... Just received products yesterday ... "
" ... Worked as described ... "
" ... Works as advertised. ... "
Price
6well, worth, product, controller
+100%
" ... This looks very well built compared to it's competing off brands in the same price range that I've purchased in the past. ... "
" ... Great little controller for the price. ... "
" ... Bang for buck? ... "
" ... Well wirth the price. ... "
" ... That alone makes this worth the price. ... "
Build Quality
5screws, tighten, screw, controller
+20%
-80%
" ... Made cheaply and hard to use. ... "
" ... not nearly enough pressure to hold wires in place, they simple fall out and the screws that hold them in just rip out from the face of the controller when tighten slightly. ... "
" ... the screws for securing the wires striped out first use. ... "
Gaming
4bought
+75%
-25%
" ... This controller works great ... "
" ... Good controller but I bought a mppt controller so I'm taking this one out ... "
" ... This controller is cool. ... "
Controls
4solar, settings, reset, red button, panel
+75%
-25%
" ... However, covering the solar panel and waiting the minute for the controller to change settings did nothing. ... "
" ... Functions well, straight forward display, no back lit function, affordable. ... "
" ... I don't know how to use the buttons well but I appreciate being able to see the amperage flash by. ... "
Product As Described
4described, advertised
+100%
" ... Works as described ... "
" ... Works as advertised. ... "
" ... Worked as described ... "
" ... Works as advertised. ... "
Features
4unit, load, light, functions, features
+75%
-25%
" ... Functions well, straight forward display, no back lit function, affordable. ... "
" ... So much better than an idiot light. ... "
Returns
3return, months
-100%
" ... I tried returning/exchanging the device and was denied. ... "
" ... Now worthless and in the trash. ... "
" ... Too late to return to buyer have had it for a few months. ... "
Device Compatibility
3easy, display
+33%
-67%
" ... This unit was paired with a single 100w panel. ... "
Fit
3tighten, screws, screw, controller
+33%
-67%
" ... not nearly enough pressure to hold wires in place, they simple fall out and the screws that hold them in just rip out from the face of the controller when tighten slightly. ... "
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Specifications
Connectivity
USB: Yes
Display
Type: LCD