The Victron SmartSolar MPPT 100/20-48V rates 4.3 among MPPT solar charge controllers; the Renogy DCC30S 30A DC-DC MPPT rates 4.0 among DC-DC ones. The Victron SmartSolar MPPT 100/20-48V costs $93.47 less ($93.50 vs $186.97).
For small 48 V systems with one or two strings of panels, such as a shed, pump or backup bank. A dependable, inexpensive Victron with the app and a five-year warranty.
Amazon $96.31 DRSA $93.50For smaller vans and truck campers with a 100 Ah battery and a panel or two on the roof. Bigger banks or arrays need the 50 A DCC50S.
Amazon $186.97Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
These two sit in different type classes (MPPT solar and DC-DC), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Victron SmartSolar MPPT 100/20-48V | Renogy DCC30S 30A DC-DC MPPT |
|---|---|---|
| Overall rating | 4.3/5 | 4.0/5 |
| Value 35% | 71 $4.67 per amp of charge current | 71 $6.23 per amp of charge current |
| Features 25% | 77 Bluetooth app, lithium profile, temperature sensor; no temperature sensor | 82 Bluetooth add-on, lithium profile, temperature sensor, smart-alternator support |
| Efficiency 20% | 75 98% peak efficiency (maker rating) | 88 97% peak efficiency (maker rating) |
| Warranty 20% | 100 5-year warranty | 50 3-year warranty |
| Victron SmartSolar MPPT 100/20-48V | Renogy DCC30S 30A DC-DC MPPT | |
|---|---|---|
| Charging | ||
| Type | MPPT solar charge controller | DC-DC charger with MPPT solar input |
| Charge current | 20 A | 30 A |
| Battery voltage | 12/24/36/48 V | 12 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | Yes |
| Temperature sensor | Optional extra | Included |
| Peak efficiency | 98% | 97% |
| Standby draw | 10 mA | 30 mA |
| Inputs | ||
| Max PV voltage (Voc) | 100 V | 30 V |
| Max PV power (12 V) | 290 W | 400 W |
| Max PV power (48 V) | 1,160 W | - |
| DC input range | - | 12 to 16 V |
| Isolated | - | No |
| Smart alternator | - | Yes |
| Ignition sensing | - | Yes |
| Monitoring and build | ||
| Bluetooth | Built in | Optional add-on |
| Display | No | No |
| Load output | Yes | No |
| Parallel units | Yes | - |
| Cooling | passive (no fan) | passive (heat sink, no fan) |
| Water resistance | IP43 (electronics), IP22 (connection area) | - |
| Dimensions | 100 x 131 x 60 mm | 9.61 x 5.75 x 3.03 in |
| Weight | 1.4 lb | 3.1 lb |
| Warranty | 5 years | 3 years |
| Released | - | 2025-07 |
