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 3.5. The Renogy DCC50S 50A DC-DC MPPT leads on features. The Renogy DCC50S 50A DC-DC MPPT costs $49.76 less ($268.99 vs $318.75).
Sterling Pro Batt Ultra BB1260
#7 in DC-DCFull review
For boats and big RV banks that need lots of alternator current and fine control over charge voltages. Van builders short on space will find the Orion XS smaller and easier.
Amazon $318.75$318.75
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 features (Bluetooth add-on, lithium profile, temperature sensor, smart-alternator support vs lithium profile, temperature sensor, smart-alternator support; no Bluetooth).
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 | Sterling Pro Batt Ultra BB1260 |
|---|---|---|
| Overall rating | 4.0/5 | 3.5/5 |
| Value 35% | 78 $5.38 per amp of charge current | 79 $5.31 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) | 50 efficiency not published (neutral score used) |
| Warranty 20% | 25 2-year warranty | 25 2-year warranty |
Specifications
| Renogy DCC50S 50A DC-DC MPPT | Sterling Pro Batt Ultra BB1260 | |
|---|---|---|
| Charging | ||
| Type | DC-DC charger with MPPT solar input | DC-DC charger |
| Charge current | 50 A | 60 A |
| Battery voltage | 12 V | 12 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | Yes |
| Temperature sensor | Included | Optional extra |
| Peak efficiency | 97% | - |
| Standby draw | 30 mA | 1 mA |
| Inputs | ||
| Max PV voltage (Voc) | 50 V | - |
| Max PV power (12 V) | 660 W | - |
| DC input range | 12 to 16 V | 11 to 20 V |
| Isolated | No | - |
| Smart alternator | Yes | Yes |
| Ignition sensing | Yes | Yes |
| Monitoring and build | ||
| Bluetooth | Optional add-on | No |
| Display | No | - |
| Load output | No | No |
| Cooling | passive (heat sink, no fan) | fan |
| Water resistance | - | IP21 |
| Dimensions | 9.61 x 5.75 x 3.78 in | 190 x 160 x 70 mm |
| Weight | 4.1 lb | 3.1 lb |
| Warranty | 2 years | 2 years |