MPPT Solar Charge Controller 15A-50A — High-Efficiency 12V/24V/48V Auto Solar Regulator

• 99.5% MPPT tracking efficiency — captures virtually all available solar power, 15-30% more than PWM controllers
• Wide 150V PV input — series-connect panels for higher voltage/lower current, reducing cable cost by up to 50%
• Auto system voltage detection — plug-and-play with 12V, 24V, or 48V battery banks without manual configuration
• Temperature-compensated charging — automatically adjusts voltage based on battery temperature for optimal charging in hot/cold climates
• User-programmable battery parameters — custom charging profiles for any battery chemistry
• Comprehensive electronic protection — safe 24/7 unattended operation with automatic fault recovery
• Optional WiFi/Bluetooth module — add remote monitoring at any time via RS485 communication port

• Residential Solar — Efficient charge control for home rooftop solar with battery storage
• RV & Marine Solar — Maximize limited roof space with high-voltage panel configurations
• Telecom Solar — Reliable MPPT control for off-grid communication site power systems
• Farm & Agricultural — Solar-powered electric fencing, gate openers, and monitoring equipment
• Remote Monitoring Stations — Solar power management for weather stations and environmental sensors
• Off-Grid Cabins — Complete solar charge control for weekend and full-time off-grid living

Zhejiang Jingying (JYINS) Electrical Co., Ltd., established in 1993, is a leading manufacturer with over 30 years of expertise in power inverters, solar charge controllers, energy storage systems, and renewable energy solutions. Our 500+ employee factory in Wenzhou, China, serves clients across 50+ countries with ISO9001/CE/SAA/RoHS certified products.

• 30+ years of manufacturing excellence since 1993
• ISO9001, ISO14001, ISO45001, CE, SAA, RoHS, FCC certified
• Dedicated R&D center with 30+ national patents
• OEM/ODM services with flexible MOQ and fast prototyping (7-10 days samples)
• Export to 50+ countries across 6 continents
• Professional pre-sales engineering support and after-sales service

Q: How many solar panels can I connect?

A: Example: JYMPPT-40A on 24V system can handle up to 1600W of solar panels. With 150V max input, you can connect 3x 400W panels (45V Voc each) in series for ~1.2kW.

Q: Can I oversize my solar array?

A: Yes! You can connect more panel wattage than the rated capacity. The controller will limit current to its rated output. This is called 'over-paneling' and helps maintain full output in low-light conditions.

Q: What gauge wire for the PV input?

A: Higher PV voltage = lower current = smaller wire. Example: 1200W at 120V requires only 10A = 2.5mm² cable. Same power at 24V requires 50A = 16mm² cable.

Q: Does it work without a battery?

A: No, the solar charge controller requires a battery connected first for reference voltage and stable operation. Always connect battery before solar panels.