Victron SmartSolar MPPT 150/45
#3 in MPPT solarFull review
For 48 V cabin and backup systems of around 2.5 kW of panels that want Victron’s app in a small case. Among the best value per amp in the SmartSolar range.
Amazon DRSA $229.50$229.50
The Victron SmartSolar MPPT 150/45 rates 4.3 among MPPT solar charge controllers; the Kisae Abso DMT1250 rates 2.8 among DC-DC ones. The Victron SmartSolar MPPT 150/45 costs $119.50 less ($229.50 vs $349).
Kisae Abso DMT1250
#10 in DC-DCFull review
For RV owners who want 50 A and a wired remote display without paying Victron or Redarc prices. The short warranty and one-source-at-a-time design hold it back.
Amazon $349$349
Prices 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.
Scores side by side
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 150/45 | Kisae Abso DMT1250 |
|---|---|---|
| Overall rating | 4.3/5 | 2.8/5 |
| Value 35% | 65 $5.10 per amp of charge current | 64 $6.98 per amp of charge current |
| Features 25% | 90 Bluetooth app, lithium profile, temperature sensor, 150 V PV input; no temperature sensor | 55 lithium profile, temperature sensor, smart-alternator support; no Bluetooth |
| Efficiency 20% | 75 98% peak efficiency (maker rating) | 0 90% peak efficiency (maker rating) |
| Warranty 20% | 100 5-year warranty | 0 1-year warranty |
Specifications
| Victron SmartSolar MPPT 150/45 | Kisae Abso DMT1250 | |
|---|---|---|
| Charging | ||
| Type | MPPT solar charge controller | DC-DC charger with MPPT solar input |
| Charge current | 45 A | 50 A |
| Battery voltage | 12/24/36/48 V | 12 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | Yes |
| Temperature sensor | Optional extra | Optional extra |
| Peak efficiency | 98% | 90% |
| Standby draw | 20 mA | 0 mA |
| Inputs | ||
| Max PV voltage (Voc) | 150 V | 32 V |
| Max PV power (12 V) | 650 W | - |
| Max PV power (48 V) | 2,600 W | - |
| DC input range | - | 10.5 to 32 V |
| Isolated | - | No |
| Smart alternator | - | Yes |
| Ignition sensing | - | Yes |
| Monitoring and build | ||
| Bluetooth | Built in | No |
| Display | No | Yes |
| Load output | No | No |
| Parallel units | Yes | - |
| Cooling | passive (no fan) | fan |
| Water resistance | IP43 (electronics), IP22 (connection area) | - |
| Dimensions | 130 x 186 x 70 mm | 9.5 x 6.7 x 2.9 in |
| Weight | 2.8 lb | 4.1 lb |
| Warranty | 5 years | 1 years |
| Released | - | 2022-10 |