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75V 20A MPPT Solar controller with BT and Display
Monitor, manage, and maximise your solar with ease.
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See also: SolarGo2 100V 30A MPPT Solar controller with BT and Display
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£84.00
£70 excl. VAT
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- Description
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The SolarGo2 20A MPPT Charge Controller is designed to deliver maximum efficiency in compact off‑grid systems. Using advanced Maximum Power Point Tracking technology, it captures more energy from your solar panels than traditional PWM controllers, giving you faster, more reliable charging throughout the day.
Built‑in wireless connectivity allows you to monitor and adjust your system directly from most smartphones, while the integrated display provides clear, real‑time information on voltage, current, battery status, and charging mode. It supports a wide range of battery types — including Lead Acid, Gel, AGM, Calcium, and Lithium Phosphate — with smart lithium wake‑up functionality for BMS‑protected LiFePO₄ batteries.
* Wireless smartphone monitoring for easy system checks and adjustments
* Up to 75V input
* Built‑in display showing real‑time voltage, current, battery status, and charging mode
* Wide battery compatibility including Lead Acid, Gel, AGM, Calcium, and LiFePO₄ with smart lithium wake‑up
* Comprehensive safety protections and automatic day/night detection for reliable off‑grid performance
With essential safety protections, automatic day/night detection, and a durable design suited to motorhomes, campervans, boats, and small off‑grid setups, the SolarGo2 20A MPPT controller offers dependable performance in a compact, easy‑to‑use package
| Electrical parameters | |
| Maximum PV open circuit voltage for 10 Amp and 20 Amp units at -20°C | 75V DC Max |
| Normal input PV voltage for 10 Amp and 20 Amp units at 25°C | 70V DC Max |
| Max. PV input current: 20 Amp (Device) | 20A Max |
| Max. PV short circuit current: | 25A Max |
| Rated charging current | 20A Max |
| Conversion efficiency | 98% Max |
| Tracking efficiency | 99.5% Max |
| Nominal PV power: 20A | 300@12V / 600@24V Watts |
| Self-consumption from battery when PV is disconnected | 18 mA |
| Output open circuit voltage when battery is disconnected | 0.5V DC Max |
| MPP voltage range for 10 Amp | 15-54V DC Max |
| Charging characteristics | |
| Minimum battery start charging voltage | 5V DC Min |
| Soft start charging voltage | 5-10V DC ± 0.2 |
| Soft-start charging current 20 Amp | 1A |
| Bulk charge 20 Amp | 20A Max |
| Absorption charging voltage at 25°C | |
| -LCO battery | 12.6V ±0.2 DC |
| -LTO battery | 14V ±0.2 DC |
| -LFP battery | 14.2V ±0.2 DC |
| -Gel type battery | 14.1V ±0.2 DC |
| -AGM type battery (default setting) | 14.4V ±0.2 DC |
| -WET type battery | 14.7V ±0.2 DC |
| -Lead Crystal battery | 14.7V ±0.2 DC |
| -Calcium battery | 14.9V ±0.2 DC |
| -Custom setting range | 12.0V - 15.5V ±0.2 DC |
| Absorption transits to Equalising or Float/Stop condition | |
| - Charging current drops to 10 Amp | 0.5A ±0.1A |
| - or Absorption charging timer timed out for Lead acid battery | 4 Hours |
| - or Absorption charging timer time out for Lithium Battery (CV1 + CV2) | 4 Hours |
| Equalisation charging activation | |
| - Only for WET or Calcium battery | |
| - Battery voltage discharged less than | 11.5V ±0.2V DC |
| Equalization charging voltage at 25°C | 15.5V ±0.2V |
| Equalisation charging timer timed out | 2 Hours |
| Equalisation charging voltage for CUSTOM setting | 13.3V-16.2V ±0.2V DC |
| Float voltage(for Crystal, GEL, WET, AGM and Calcium battery) at 25°C | 13.6V ±0.2V DC |
| Custom | 11.5V-14.0V ±0.2V DC |
| Restart voltage | |
| - Crystal, GEL, WET, AGM and Calcium Restart voltage battery | 12.7V ±0.2V DC |
| - LCO battery | 12V ±0.2V DC |
| - LTO battery | 13V ±0.2V DC |
| - LFP battery | 13.3V ±0.2V DC |
| - CUSTOM setting range | 12.5V - 13.5V ±0.2V DC |
| Voltage control accuracy | ±0.1V DC |
| Battery temperature compensation coefficient | -24 mV/°C |
| Temperature compensation range | -20 ~ +50°C |
| Physical parameters | |
| Controller material | Plastic, PC |
| Mounting | Surface mounting |
| IP grade | IP43 |
| Dimensions: 20A | 180 x 108 x 58mm // 0.7KG |
| Wireless | Connects to most types of Bluetooth phones |
| Remote display | Optional |
| Temperature sensor | Optional |
| Protection Circuits | Reverse Polarity Protection |
| Short Circuit Protection | |
| Reverse Current Protection | |
| Overcharge Protection | |
| Transient Overvoltage Protection | |
| Overtemperature Protection | |
| Operating temperature | -25 ~ 50°C / -13 ~ 122°F |
| Storage temperature | -40 ~ 85°C/ -40 ~ 185°F |
| Operating humidity range | 0-85% RH |
| Warranty | 2 Years |
Brochure
View: SolarGo2 75V 20A MPPT Solar controller with BT and Display Brochure (PDF)
Download: SolarGo2 75V 20A MPPT Solar controller with BT and Display Brochure (PDF)
Instructions
View: SolarGo2 75V 20A MPPT Solar controller with BT and Display Instructions (PDF)
Download: SolarGo2 75V 20A MPPT Solar controller with BT and Display Instructions (PDF)
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Up to 20 years warranty