The Victron SmartSolar MPPT 100/50 rates 4.4 among MPPT solar charge controllers; the Kisae Abso DMT1250 rates 2.8 among DC-DC ones. The Victron SmartSolar MPPT 100/50 costs $155.20 less ($193.80 vs $349).
For RV and van owners running 500-700 W of panels on 12 V or about 1,400 W on 24 V. It has the same app and warranty as the smaller Victrons at a low cost per amp.
Amazon DRSA $193.80For 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 $349Prices were last checked October 22, 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 100/50 | Kisae Abso DMT1250 |
|---|---|---|
| Overall rating | 4.4/5 | 2.8/5 |
| Value 35% | 82 $3.88 per amp of charge current | 64 $6.98 per amp of charge current |
| Features 25% | 77 Bluetooth app, lithium profile, temperature sensor; 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 |
| Victron SmartSolar MPPT 100/50 | Kisae Abso DMT1250 | |
|---|---|---|
| Charging | ||
| Type | MPPT solar charge controller | DC-DC charger with MPPT solar input |
| Charge current | 50 A | 50 A |
| Battery voltage | 12/24 V | 12 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | Yes |
| Temperature sensor | Optional extra | Optional extra |
| Peak efficiency | 98% | 90% |
| Standby draw | 30 mA | 0 mA |
| Inputs | ||
| Max PV voltage (Voc) | 100 V | 32 V |
| Max PV power (12 V) | 700 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 | - | 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 | 2.9 lb | 4.1 lb |
| Warranty | 5 years | 1 years |
