Renogy DCC50S 50A DC-DC MPPT
#3 in DC-DCFull review
The value pick for vans and campers that want alternator and solar charging in one box. It costs well under half as much as a Redarc dual-input unit for more current.
Amazon $268.99$268.99
The Renogy DCC50S 50A DC-DC MPPT is the better charge controller overall, rated 4.0 to 2.8. The Renogy DCC50S 50A DC-DC MPPT leads on efficiency, features and value. The Renogy DCC50S 50A DC-DC MPPT costs $80.01 less ($268.99 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 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Renogy DCC50S 50A DC-DC MPPT for efficiency (97% peak efficiency (maker rating) vs 90% peak efficiency (maker rating)), features (Bluetooth add-on, lithium profile, temperature sensor, smart-alternator support vs lithium profile, temperature sensor, smart-alternator support; no Bluetooth) and value ($5.38 per amp of charge current vs $6.98 per amp of charge current).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every DC-DC charge controller; a clear win is highlighted. How we rank explains each one.
| Factor weight | Renogy DCC50S 50A DC-DC MPPT | Kisae Abso DMT1250 |
|---|---|---|
| Overall rating | 4.0/5 | 2.8/5 |
| Value 35% | 78 $5.38 per amp of charge current | 64 $6.98 per amp of charge current |
| Features 25% | 82 Bluetooth add-on, lithium profile, temperature sensor, smart-alternator support | 55 lithium profile, temperature sensor, smart-alternator support; no Bluetooth |
| Efficiency 20% | 88 97% peak efficiency (maker rating) | 0 90% peak efficiency (maker rating) |
| Warranty 20% | 25 2-year warranty | 0 1-year warranty |
Specifications
| Renogy DCC50S 50A DC-DC MPPT | Kisae Abso DMT1250 | |
|---|---|---|
| Charging | ||
| Type | DC-DC charger with MPPT solar input | DC-DC charger with MPPT solar input |
| Charge current | 50 A | 50 A |
| Battery voltage | 12 V | 12 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | Yes |
| Temperature sensor | Included | Optional extra |
| Peak efficiency | 97% | 90% |
| Standby draw | 30 mA | 0 mA |
| Inputs | ||
| Max PV voltage (Voc) | 50 V | 32 V |
| Max PV power (12 V) | 660 W | - |
| DC input range | 12 to 16 V | 10.5 to 32 V |
| Isolated | No | No |
| Smart alternator | Yes | Yes |
| Ignition sensing | Yes | Yes |
| Monitoring and build | ||
| Bluetooth | Optional add-on | No |
| Display | No | Yes |
| Load output | No | No |
| Cooling | passive (heat sink, no fan) | fan |
| Dimensions | 9.61 x 5.75 x 3.78 in | 9.5 x 6.7 x 2.9 in |
| Weight | 4.1 lb | 4.1 lb |
| Warranty | 2 years | 1 years |