The Victron Orion-Tr Smart 12/12-30 is the better charge controller overall, rated 3.6 to 3.3. The Victron Orion-Tr Smart 12/12-30 leads on warranty and features. The Redodo 12V 40A DC-DC with MPPT wins on value and efficiency. The Redodo 12V 40A DC-DC with MPPT costs $53.31 less ($165.99 vs $219.30).
For boats and vans that need an isolated charger from a brand with a long track record. Buyers who don’t need isolation get more current and efficiency from the Orion XS.
Amazon Northern Arizona Wind & Sun $219.30For budget van and trailer builds that want alternator and solar charging in one cheap box. Specs are thin, so pick it on price rather than features.
Amazon $165.99Prices 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.
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 | Victron Orion-Tr Smart 12/12-30 | Redodo 12V 40A DC-DC with MPPT |
|---|---|---|
| Overall rating | 3.6/5 | 3.3/5 |
| Value 35% | 61 $7.31 per amp of charge current | 90 $4.15 per amp of charge current |
| Features 25% | 80 Bluetooth app, lithium profile, smart-alternator support; no temperature sensor | 35 lithium profile; no Bluetooth |
| Efficiency 20% | 0 87% peak efficiency (maker rating) | 38 93% peak efficiency (maker rating) |
| Warranty 20% | 100 5-year warranty | 25 2-year warranty |
| Victron Orion-Tr Smart 12/12-30 | Redodo 12V 40A DC-DC with MPPT | |
|---|---|---|
| Charging | ||
| Type | DC-DC charger | DC-DC charger with MPPT solar input |
| Charge current | 30 A | 40 A |
| Battery voltage | 12 V | 12 V |
| Lithium profile | Yes | Yes |
| Custom profile | Yes | - |
| Temperature sensor | No | No |
| Peak efficiency | 87% | 93% |
| Standby draw | 1 mA | - |
| Inputs | ||
| DC input range | 8 to 17 V | - |
| Isolated | Yes | - |
| Smart alternator | Yes | - |
| Ignition sensing | Yes | - |
| Monitoring and build | ||
| Bluetooth | Built in | No |
| Display | No | - |
| Load output | No | No |
| Parallel units | Yes | - |
| Water resistance | IP43 | - |
| Dimensions | 5.1 x 7.3 x 3.2 in | 5.83 x 1.89 x 7.44 in |
| Weight | 4 lb | 2.4 lb |
| Warranty | 5 years | 2 years |
