Epever Tracer 3210AN 30A MPPT Charge Controller vs Epever Tracer 4210AN 40A MPPT Charge Controller
Epever Tracer 3210AN 30A MPPT Charge Controller (30A MPPT) vs Epever Tracer 4210AN 40A MPPT Charge Controller (40A MPPT) compared spec-by-spec. Efficiency, pricing, pros, cons, and our verdict on which solar charge controller to buy.
| Specification | A — epever Epever Tracer 3210AN 30A MPPT Charge Controller 7.8/10 $80 Check Price on Amazon $100
Save $20 | B — epever Epever Tracer 4210AN 40A MPPT Charge Controller 8.0/10 $100 Check Price on Amazon $130
Save $30 |
|---|---|---|
| Controller Type | MPPT | MPPT |
| Max Solar Input V | 100 | 100 |
| Max Charge Current A | 30 | 40 |
| Max Solar Input W 12v | 390 | 520 |
| Max Solar Input W 24v | 780 | 1,040 |
| Battery Voltage | 12/24V auto | 12/24V auto |
| Efficiency Pct | 96 | 96 |
| Weight | 2.6 lbs ✓ Winner | 3.3 lbs |
| Dimensions | 7.5 x 5.1 x 2.6 in | 7.5 x 5.1 x 2.6 in |
| Bluetooth Built In | No | No |
| App Control | Yes | Yes |
| Programmable | Yes | Yes |
| Display | No | No |
| Operating Temp | -13 to 131F | -13 to 131F |
| Warranty | 2 years | 2 years |
| Ip Rating | IP30 | IP30 |
| Rs485 Modbus | Yes | Yes |
Buy the Epever Tracer 3210AN 30A MPPT Charge Controller
Best prices · Updated hourly
Buy the Epever Tracer 4210AN 40A MPPT Charge Controller
Best prices · Updated hourly
Who Should Buy the Epever Tracer 3210AN 30A MPPT Charge Controller?
The Epever Tracer 3210AN 30A MPPT Charge Controller is designed for small system, large off grid. As a 30A MPPT controller, it maximizes energy harvest by tracking the optimal operating point — especially valuable in partial-shade or cold conditions.
Key advantages include: true mppt tracking at only $80 — the cheapest real mppt on the market; rs-485 modbus for diy monitoring and home automation integration; 30a charge current is perfect for 1-2 panel starter systems.
Priced at $80 ($2.67/A), the Epever Tracer 3210AN 30A MPPT Charge Controller scores 7.8/10 overall — a competitive option for its price class.
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.
How Do the Specs Compare?
Controller type: Both are MPPT controllers, so the fundamental operating principle is the same — differences in performance come from current rating, input voltage range, and software features.
Charge current: The Epever Tracer 4210AN 40A MPPT Charge Controller supports more current at 40A versus 30A for the Epever Tracer 3210AN 30A 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 3210AN 30A MPPT Charge Controller accepts higher panel voltage at 100V versus 100V for the Epever Tracer 4210AN 40A MPPT Charge Controller. Both support typical residential and off-grid panel configurations.
Efficiency: The Epever Tracer 3210AN 30A MPPT Charge Controller is more efficient at 96% versus 96% for the Epever Tracer 4210AN 40A MPPT Charge Controller. The efficiency difference is minimal and within measurement variance.
Price: The Epever Tracer 3210AN 30A MPPT Charge Controller costs $80 versus $100 for the Epever Tracer 4210AN 40A MPPT Charge Controller — a $20 difference. On a cost-per-amp basis: Epever Tracer 3210AN 30A MPPT Charge Controller at $2.67/A vs Epever Tracer 4210AN 40A MPPT Charge Controller at $2.50/A.
🏆 Our Verdict
Choose the Epever Tracer 3210AN 30A MPPT Charge Controller if you need a reliable MPPT controller and top-tier efficiency (96%).
Choose the Epever Tracer 4210AN 40A MPPT Charge Controller if you prioritize premium features and build quality .
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