For large RV, cabin or boat systems that need 60 A and long series strings. Worth the premium if you want Victron’s app, BMS control and warranty.
Amazon DRSA $368.90
A popular 40 A controller for 12/24 V RV and cabin systems with up to about 520 W of panels. Budget for the BT-2 module if you want app monitoring.
- 40 ACharge current
- 12/24 VBattery
- 100 V maxPV input
- 98%Efficiency
- 3 yearsWarranty
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Remote temperature sensor comes in the box
- Wide retail availability and a long track record
- Charges lithium batteries and can wake one from BMS shutdown
- Phone monitoring needs the extra BT-2 module
- 100 V input limit restricts series strings
- Sold for more on Renogy’s own store than on Amazon
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | RNG-CTRL-RVR40 |
|---|---|
| Charging | |
| Type | MPPT solar charge controller |
| Charge current | 40 A |
| Battery voltage | 12/24 V |
| Lithium profile | Yes |
| Temperature sensor | Included |
| Peak efficiency | 98% |
| Standby draw | 100 mA |
| Inputs | |
| Max PV voltage (Voc) | 100 V |
| Max PV power (12 V) | 520 W |
| Monitoring and build | |
| Bluetooth | Optional add-on |
| Display | Yes |
| Water resistance | IP32 |
| Dimensions | 9.38 x 6.78 x 3.05 in |
| Warranty | 3 years |
Alternatives in this type
A low-cost 40 A controller with app monitoring built in, for 12/24 V van and RV systems up to about 600 W.
Amazon $139.99A budget 40 A controller for owners who are happy setting it up on its own screen. Add the Bluetooth adapter if you want phone monitoring.
Amazon $118.99Compare
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