The RV & Marine Supplies Solar Controller MPPT 20A (XTRA2210N) is a compact, high-efficiency charge controller built for off-grid photovoltaic systems. With advanced MPPT technology and an adaptive three-stage charging algorithm, it maximizes energy harvest from your PV array while safeguarding your battery bank across a wide range of conditions.

• Exceptional energy capture: ultra-fast MPPT tracking and DC/DC transfer efficiency up to 98% (full load up to 97.4%), delivering up to 30% more charging efficiency than traditional PWM controllers.
• Smart, adaptive charging: a self‑adaptive three-stage charging algorithm extends battery life and improves system performance for both lead‑acid and lithium chemistries.
• Robust protection: comprehensive safeguards against overcharge, over-discharge, PV and battery reverse polarity, and temperature-related derating to keep the system stable in demanding environments.
• Wide operating range: supports 12/24V systems automatically (with lithium batteries, auto-identification is not available), and tolerates a broad PV voltage window for flexible panel configurations.
• Real-time insight: real-time energy statistics and a clear, optional LCD display interface (XDB1/XDS1/XDS2) let you monitor performance and adjust settings on the fly.
• Communications & integration: isolated RS485 port with 5V/200mA output and standard Modbus protocol enables reliable remote monitoring and integration with your control systems or apps.
• Durable design: IP32-rated enclosure for dust and water protection, CE-certified for safety and performance, and built with high-quality components for long service life.
• Versatile battery support: compatible with sealed, gel, flooded lead-acid batteries as well as LiFePO4 and other lithium variants, with low-temperature protection and automatic lithium charging support where applicable.
• Practical for various setups: ideal for RVs, boats, cabins, and remote/off-grid locations where reliable energy management matters and space is at a premium.

Key advantages you’ll notice in real-world use include higher daily energy harvest in cloudy or mixed conditions, proactive protection that prevents unexpected outages, and straightforward configuration through the optional displays and software tools. The XTRA2210N is designed to deliver dependable performance in demanding environments while keeping your battery health at the forefront.

Specifications at a glance

• 12/24VDC Auto (lithium may require manual identification)
• 20A
• 8–32V
• 92V (100V at minimum operating temperature)
• Max. PV input power: 520W @ 24V, 260W @ 12V
• Battery types: Lead-acid (Sealed/Gel/Flooded/User), Lithium (LiFePO4, Li(NiCoMn)O2, User)
• Dimensions: 217 × 155 × 56 mm (L × W × H)
• Recommended cables: 6 AWG (16 mm²)
• Protection: IP32, overcharge/over-discharge, reverse polarity, over-temperature, automatic derating
• Certifications: CE (LVD IEC 62109, EMC EN 61000)
• Display & control options: Optional XDB1/XDS1/XDS2 displays; APP or PC software for parameter monitoring and tuning
• Communication: Isolated RS485 with Modbus protocol

With the Solar Controller MPPT 20A, you gain a reliable, space-efficient energy manager that makes off-grid solar straightforward and dependable. Its smart algorithm, protective features, and flexible battery compatibility mean you can trust it to deliver steady power whenever the sun is shining—or not.