A strong default for 300-450 W van and RV arrays on 12 V. It is well priced for a five-year-warranty controller with a built-in app.
Amazon Expion360 $135.15The Victron SmartSolar MPPT 100/30 and the Victron SmartSolar MPPT 100/20-48V are evenly matched, rated 4.3 and 4.3. The Victron SmartSolar MPPT 100/20-48V costs $41.65 less ($93.50 vs $135.15).
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 $93.50Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every MPPT solar charge controller; a clear win is highlighted. How we rank explains each one.
| Factor weight | Victron SmartSolar MPPT 100/30 | Victron SmartSolar MPPT 100/20-48V |
|---|---|---|
| Overall rating | 4.3/5 | 4.3/5 |
| Value 35% | 73 $4.50 per amp of charge current | 71 $4.67 per amp of charge current |
| Features 25% | 77 Bluetooth app, lithium profile, temperature sensor; no temperature sensor | 77 Bluetooth app, lithium profile, temperature sensor; no temperature sensor |
| Efficiency 20% | 75 98% peak efficiency (maker rating) | 75 98% peak efficiency (maker rating) |
| Warranty 20% | 100 5-year warranty | 100 5-year warranty |
Specifications
| Victron SmartSolar MPPT 100/30 | Victron SmartSolar MPPT 100/20-48V | |
|---|---|---|
| Charging | ||
| Type | MPPT solar charge controller | MPPT solar charge controller |
| Charge current | 30 A | 20 A |
| Battery voltage | 12/24 V | 12/24/36/48 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | Yes |
| Temperature sensor | Optional extra | Optional extra |
| Peak efficiency | 98% | 98% |
| Standby draw | 30 mA | 10 mA |
| Inputs | ||
| Max PV voltage (Voc) | 100 V | 100 V |
| Max PV power (12 V) | 440 W | 290 W |
| Max PV power (48 V) | - | 1,160 W |
| Monitoring and build | ||
| Bluetooth | Built in | Built in |
| Display | No | No |
| Load output | No | Yes |
| Parallel units | Yes | Yes |
| Cooling | - | passive (no fan) |
| Water resistance | IP43 (electronics), IP22 (connection area) | IP43 (electronics), IP22 (connection area) |
| Dimensions | 130 x 186 x 70 mm | 100 x 131 x 60 mm |
| Weight | 2.9 lb | 1.4 lb |
| Warranty | 5 years | 5 years |
| Released | 2017-08 | 2019-08 |
