Victron Energy SmartSolar MPPT 100/20 vs Victron Energy SmartSolar MPPT 150/35
The Victron Energy SmartSolar MPPT 150/35 wins this charge controller comparison by a decisive margin. It delivers 35A of MPPT charging for arrays up to 500W with 98% efficiency. Both are MPPT controllers, so the comparison comes down to capacity, features, and price.
Key Differences
- • Victron Energy SmartSolar MPPT 100/20 handles 290W of solar input while Victron Energy SmartSolar MPPT 150/35 handles 500W.
Specifications Breakdown
Voltage & Current Ratings
The Victron Energy SmartSolar MPPT 100/20 supports up to 100V PV open-circuit voltage with 20A maximum charge current for systems up to 290W, while the Victron Energy SmartSolar MPPT 150/35 handles 150V PV with 35A and 500W maximum input. The Victron Energy SmartSolar MPPT 150/35's higher PV voltage limit (150V vs 100V) allows longer series strings of panels, which reduces wiring costs and minimizes voltage drop over longer cable runs between the array and charge controller. The Victron Energy SmartSolar MPPT 100/20 operates on 12V/24V battery systems while the Victron Energy SmartSolar MPPT 150/35 supports 12V/24V/48V. Ensure your battery bank voltage matches the controller you choose.
Efficiency & Charge Technology
Both controllers use MPPT technology with the Victron Energy SmartSolar MPPT 100/20 achieving 98% peak efficiency versus 98% for the Victron Energy SmartSolar MPPT 150/35. With identical peak efficiency, neither controller has a conversion advantage. As MPPT controllers, both actively track the solar array’s optimal operating point throughout the day, extracting maximum possible energy even under variable cloud cover and temperature conditions.
Monitoring & Communication
The Victron Energy SmartSolar MPPT 100/20 provides Bluetooth built-in (VictronConnect app) monitoring via VE.Direct, while the Victron Energy SmartSolar MPPT 150/35 offers Bluetooth built-in (VictronConnect app) through VE.Direct. Both include Bluetooth connectivity for convenient smartphone-based monitoring and configuration. The Victron Energy SmartSolar MPPT 100/20 includes a 20A programmable load output terminal for directly powering DC loads with automatic low-voltage disconnect, which the Victron Energy SmartSolar MPPT 150/35 lacks.
Pricing & Value Analysis
The Victron Energy SmartSolar MPPT 100/20 retails for $130-$150 (approximately $7.00 per amp of charge current), while the Victron Energy SmartSolar MPPT 150/35 costs $250-$300 ($7.86/amp). At $7/amp, the Victron Energy SmartSolar MPPT 100/20 delivers better cost efficiency per unit of charging capacity. When both controllers use the same technology type, the cost per amp metric is the most direct measure of hardware value. The Victron Energy SmartSolar MPPT 100/20 carries a 5-year warranty versus 5 years for the Victron Energy SmartSolar MPPT 150/35.
Specification Comparison
| Specification | Victron Energy SmartSolar MPPT 100/20 | Victron Energy SmartSolar MPPT 150/35 |
|---|---|---|
| Type | MPPT | MPPT |
| Max Solar Power | 290W | 500W |
| Charge Current | 20A | 35A |
| Max PV Voltage | 100V | 150V |
| System Voltage | 12V/24V | 12V/24V/48V |
| Efficiency | 98% | 98% |
| Load Output | 20A | No |
| Weight | 0.65 kg | 1.25 kg |
| Warranty | 5 years | 5 years |
| Price | $130–$150 | $250–$300 |
5-Dimension Head-to-Head Analysis
1. Power & Current Capacity
Winner: Victron Energy SmartSolar MPPT 150/35The Victron Energy SmartSolar MPPT 150/35 handles 500W / 35A versus 290W / 20A. The 210W difference determines the maximum solar array size each can support.
2. Efficiency & Technology
Winner: TieBoth achieve 98% efficiency with MPPT technology — no efficiency advantage.
3. PV Voltage Range
Winner: Victron Energy SmartSolar MPPT 150/35The Victron Energy SmartSolar MPPT 150/35 supports up to 150V PV versus 100V. Higher PV voltage allows longer series strings, reducing wiring costs and voltage drop over distance.
4. Warranty & Reliability
Winner: TieBoth carry 5-year warranties — equal manufacturer protection.
5. Value for Money
Winner: Victron Energy SmartSolar MPPT 100/20At $130-$150 ($7.00/amp), the Victron Energy SmartSolar MPPT 100/20 is more affordable than the Victron Energy SmartSolar MPPT 150/35 at $250-$300 ($7.86/amp). Compare the cost per amp to find the best value for your system size.
Victron Energy SmartSolar MPPT 100/20
The Victron SmartSolar MPPT 100/20 is a compact 20A MPPT charge controller with built-in Bluetooth connectivity via the VictronConnect app. It supports 12V and 24V battery systems with up to 100V PV open-circuit voltage and delivers up to 290W of solar input at 12V. Ultra-fast maximum power point tracking with advanced algorithms ensures maximum energy harvest even under partial shading conditions.
Pros
- + Built-in Bluetooth for easy monitoring and configuration via VictronConnect app
- + Ultra-fast MPPT tracking with 98% peak efficiency
- + Supports wide range of battery types including LiFePO4
- + 5-year warranty — industry-leading for charge controllers
Cons
- - Limited to 290W at 12V, not suitable for larger systems
- - IP43 rating limits outdoor installation options
- - No built-in display — requires smartphone app for monitoring
Victron Energy SmartSolar MPPT 150/35
The Victron SmartSolar MPPT 150/35 supports up to 150V PV open-circuit voltage and 35A charge current, making it suitable for larger solar arrays and 48V battery systems. With built-in Bluetooth and Victron's proven MPPT algorithm, it maximizes solar energy harvest while providing flexible system design options for residential off-grid and backup power applications.
Pros
- + 150V PV input allows series-connected high-voltage panel strings
- + Supports 12V, 24V, and 48V battery systems
- + Built-in Bluetooth with comprehensive VictronConnect app
- + 98% peak efficiency with adaptive MPPT algorithm
Cons
- - No built-in load output terminal
- - Higher price point than basic MPPT controllers
- - IP43 rating requires sheltered installation
Choose Victron Energy SmartSolar MPPT 100/20 If...
- ✓ Budget is a top priority and you want good value at $130-$150
- ✓ Small to medium off-grid and RV solar systems needing reliable MPPT charging with Bluetooth monitoring
Choose Victron Energy SmartSolar MPPT 150/35 If...
- ✓ Your solar array exceeds 290W and needs the higher 500W capacity
- ✓ You need higher PV voltage support (150V) for series-connected panel strings
- ✓ Medium to large off-grid systems needing 48V battery support and high PV voltage capability
Our Recommendation
The Victron Energy SmartSolar MPPT 150/35 is the decisive winner in this charge controller comparison, outperforming the Victron Energy SmartSolar MPPT 100/20 in 2 of 5 dimensions. Unless you have a specific requirement that the Victron Energy SmartSolar MPPT 100/20 uniquely addresses, the Victron Energy SmartSolar MPPT 150/35 is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Victron Energy SmartSolar MPPT 100/20 or Victron Energy SmartSolar MPPT 150/35?
The Victron Energy SmartSolar MPPT 150/35 wins this charge controller comparison by a decisive margin. It delivers 35A of MPPT charging for arrays up to 500W with 98% efficiency. Both are MPPT controllers, so the comparison comes down to capacity, features, and price.
Which controller handles more solar power?
The Victron Energy SmartSolar MPPT 100/20 handles up to 290W with 20A charge current, while the Victron Energy SmartSolar MPPT 150/35 handles 500W with 35A. Victron Energy SmartSolar MPPT 150/35 can support a larger solar array.
Is MPPT or PWM better for my system?
Both the Victron Energy SmartSolar MPPT 100/20 and Victron Energy SmartSolar MPPT 150/35 use MPPT technology. MPPT controllers harvest 15-30% more energy by converting excess PV voltage into additional charging current, but cost more. PWM controllers are simpler and cheaper, best for small 12V systems with matching-voltage panels. For systems over 200W, MPPT typically pays for itself within 1-2 years through increased energy harvest.
Which has a better warranty?
The Victron Energy SmartSolar MPPT 100/20 offers 5 years versus 5 years for the Victron Energy SmartSolar MPPT 150/35. Both offer identical warranty terms.
Which offers better value for money?
The Victron Energy SmartSolar MPPT 100/20 costs $130-$150 ($7.00/amp) while the Victron Energy SmartSolar MPPT 150/35 costs $250-$300 ($7.86/amp). Victron Energy SmartSolar MPPT 100/20 offers better cost per amp. Consider total value including warranty length, monitoring features, and brand support.
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Last updated: February 2026