Epever Tracer 4210AN 40A MPPT Charge Controller vs Morningstar TriStar 45A PWM Charge Controller
Epever Tracer 4210AN 40A MPPT Charge Controller (40A MPPT) vs Morningstar TriStar 45A PWM Charge Controller (45A PWM) compared spec-by-spec. Efficiency, pricing, pros, cons, and our verdict on which solar charge controller to buy.
| Specification | A — epever Epever Tracer 4210AN 40A MPPT Charge Controller 8.0/10 $100 Check Price on Amazon $130
Save $30 | B — morningstar Morningstar TriStar 45A PWM Charge Controller 8.3/10 $180 Check Price on Amazon $210
Save $30 |
|---|---|---|
| Controller Type | MPPT | PWM |
| Max Solar Input V | 100 | 48 |
| Max Charge Current A | 40 | 45 |
| Max Solar Input W 12v | 520 | 540 |
| Max Solar Input W 24v | 1,040 | 1,080 |
| Battery Voltage | 12/24V auto | 12/24/48V |
| Efficiency Pct | 96 | 99 |
| Weight | 3.3 lbs | 2 lbs ✓ Winner |
| Dimensions | 7.5 x 5.1 x 2.6 in | 7.3 x 4.9 x 2.0 in |
| Bluetooth Built In | No | No |
| App Control | Yes | No |
| Programmable | Yes | Yes |
| Display | No | No |
| Operating Temp | -13 to 131F | -40 to 113F |
| Warranty | 2 years | 5 years ✓ Winner |
| Ip Rating | IP30 | IP22 |
| Rs485 Modbus | Yes | — |
| Modbus Rts | — | Yes |
Buy the Epever Tracer 4210AN 40A MPPT Charge Controller
Best prices · Updated hourly
Buy the Morningstar TriStar 45A PWM Charge Controller
Best prices · Updated hourly
Who Should Buy the Epever Tracer 4210AN 40A MPPT Charge Controller?
The Epever Tracer 4210AN 40A MPPT Charge Controller is designed for off grid cabin bank, rv house battery, small system. As a 40A MPPT controller, it maximizes energy harvest by tracking the optimal operating point — especially valuable in partial-shade or cold conditions.
Key advantages include: unbeatable price — true mppt performance under $100; rs-485 modbus port for custom monitoring and integration; 40a charge current handles up to 520w on 12v systems.
Priced at $100 ($2.50/A), the Epever Tracer 4210AN 40A MPPT Charge Controller scores 8/10 overall — a top-performing controller at this current rating.
Who Should Buy the Morningstar TriStar 45A PWM Charge Controller?
The Morningstar TriStar 45A PWM Charge Controller is designed for small system, large off grid. As a 45A PWM controller, it provides reliable, straightforward regulation ideal for smaller systems and simpler setups.
Key advantages include: industrial-grade build quality — epoxy-coated pcb, heavy-gauge terminals; 5-year warranty backed by morningstar's legendary reliability; multi-mode operation: charge, load, diversion.
Priced at $180 ($4.00/A), the Morningstar TriStar 45A PWM Charge Controller scores 8.3/10 overall — a top-performing controller at this current rating.
How Do the Specs Compare?
Controller type: The Epever Tracer 4210AN 40A MPPT Charge Controller uses MPPT technology while the Morningstar TriStar 45A PWM Charge Controller uses PWM. MPPT controllers typically harvest 10–30% more energy than PWM in real-world conditions — a meaningful difference for daily energy budgets.
Charge current: The Morningstar TriStar 45A PWM Charge Controller supports more current at 45A versus 40A for the Epever Tracer 4210AN 40A MPPT Charge Controller. Higher amperage means faster battery charging and support for larger solar arrays — size your controller to at least 25% above your actual panel output for thermal headroom.
Max input voltage: The Epever Tracer 4210AN 40A MPPT Charge Controller accepts higher panel voltage at 100V versus 48V for the Morningstar TriStar 45A PWM Charge Controller. Both support typical residential and off-grid panel configurations.
Efficiency: The Morningstar TriStar 45A PWM Charge Controller is more efficient at 99% versus 96% for the Epever Tracer 4210AN 40A MPPT Charge Controller. Over a full year, a 3% efficiency difference compounds into meaningful kWh recovered — particularly on larger systems.
Price: The Epever Tracer 4210AN 40A MPPT Charge Controller costs $100 versus $180 for the Morningstar TriStar 45A PWM Charge Controller — a $80 difference. On a cost-per-amp basis: Epever Tracer 4210AN 40A MPPT Charge Controller at $2.50/A vs Morningstar TriStar 45A PWM Charge Controller at $4.00/A.
🏆 Our Verdict
Choose the Epever Tracer 4210AN 40A MPPT Charge Controller if you need a reliable MPPT controller and solid performance for its price class.
Choose the Morningstar TriStar 45A PWM Charge Controller if you prioritize premium features and build quality .
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