HQST 100A MPPT Solar Charge Controller for RV & Off-Grid Systems
- 【POWER LARGE SOLAR SYSTEMS】 Deliver 100A charging with up to 6,000W solar input. Supports 12V/24V/36V/48V battery systems for RV, off-grid, and backup power applications.
- 【MAXIMIZE YOUR SOLAR ENERGY】Capture more power with advanced MPPT technology, up to 99% tracking efficiency and 98.7% conversion efficiency. Compatible with LiFePO4, AGM, GEL, Flooded, and custom battery settings.
- 【ADVANCED LiFePO4 PROTECTION】Protect lithium batteries with low-temperature charging cut-off below 32°F and discharge protection below 5°F. Wake up dormant batteries after over-discharge.
- 【SMART MONITORING MADE EASY】Monitor charging voltage, current, battery status, and system performance through Bluetooth APP or LCD display. Review up to 300 days of historical data anytime.
- 【EXPAND & PROTECT YOUR SYSTEM】Connect up to 2 controllers of the same series for higher charging capacity. Built-in 10 protections and automatic cooling fans help ensure reliable operation.
HQST 100A MPPT Solar Charge Controller for RV & Off-Grid Systems - 100A is backordered and will ship as soon as it is back in stock.
| Specifications | |
|---|---|
| Model | HCC100HTR-FCM-G1-US |
| Input Voltage | PV: 145 Voc Max |
| System Wiring Grounded | Positive Grounded |
| Battery System Voltage |
12V / 24V / 36V / 48V Auto (FLD/GEL/SEL/USE) Manual (LI/USE) |
| Rated Solar Charge Current | 100A |
| Max Solar Input Power |
1500W (12V) 3000W (24V) 4500W (36V) 6000W (48V) |
| Max Solar Input Voltage | <145 Voc |
| Efficiency |
98.7% Conversion Efficiency Up to 99% MPPT Tracking Efficiency |
| Self-Consumption / No-load Loss | 12mA (12V), 10mA (24V), 8mA (36V), 6mA (48V) |
| Operating Temperature | -4°F to 131°F (-20°C to +55°C) |
| Fan-on Temperature | >113°F / 45°C |
| Storage Temperature | -40°F to 176°F (-40°C to +80°C) |
| Low Temperature Protection |
LiFePO4 charging cut-off below 32°F (0°C) Discharging cut-off below 5°F (-15°C) |
| Communication Port | RS485 |
| Parallel Support | Supports up to 2 controllers in parallel |
| Electronic Protections | Over-voltage, over-current, reverse polarity, overheating, and LiFePO4 low-temperature protection |
| IP Protection | IP21 |
| Operating Altitude | ≤3000 meters |
| Controller Dimensions |
7.91 × 9.92 × 3.15 in 201 × 252 × 80 mm |
| Net Weight | 5.49 lbs / 2.49 kg |
| Cable | 8 AWG |
| Package Dimensions (L × W × D) |
12.4 × 10.04 × 5.00 in 315 × 255 × 127 mm |
| Package Weight | 6.48 lb / 2.94 kg |
Frequently Asked Questions
Does the controller automatically detect the battery voltage?
Does the controller automatically detect the battery voltage?
Yes. It supports auto detection for FLD, GEL, SEL, and USE battery types. LI mode requires manual selection.
What is the maximum PV input voltage?
What is the maximum PV input voltage?
The maximum PV open-circuit voltage is 145V Voc. Do not exceed this limit.
How much solar power can this controller handle?
How much solar power can this controller handle?
It supports up to 1,500W at 12V, 3,000W at 24V, 4,500W at 36V, and 6,000W at 48V.
Can I connect two controllers in parallel?
Can I connect two controllers in parallel?
Yes. Up to two controllers from the same series can be connected in parallel. Both controllers must be set to the same battery voltage. Make sure the battery can handle their combined charging current.
What is the operating temperature range?
What is the operating temperature range?
The operating temperature range is -4°F to 131°F (-20°C to 55°C).
What types of batteries are compatible with this controller?
What types of batteries are compatible with this controller?
It supports Lithium, AGM, GEL, Flooded, and User-Defined batteries.









