Renogy PRO 50A DC-DC MPPT IP67
#3 in 40 A and upFull review
For boats, trucks and engine bay installs that need a sealed charger with solar and Bluetooth.
Amazon $399.99$399.99
The Renogy PRO 50A DC-DC MPPT IP67 is the better DC-DC charger overall, rated 3.8 to 2.9. The Renogy PRO 50A DC-DC MPPT IP67 leads on warranty, features and efficiency. The Kisae Abso DMT1250 wins on value. The Kisae Abso DMT1250 costs $50.99 less ($349 vs $399.99).
Kisae Abso DMT1250
#17 in 40 A and upFull 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 31, 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 PRO 50A DC-DC MPPT IP67 for warranty (5-year warranty vs 1-year warranty), features (solar input, smart alternator support, Bluetooth vs solar input, smart alternator support) and efficiency (94% peak efficiency vs 90% peak efficiency).
- Choose the Kisae Abso DMT1250 for value ($6.98 per amp ($349, 50 A) vs $8 per amp ($399.99, 50 A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 40 A and up DC-DC charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | Renogy PRO 50A DC-DC MPPT IP67 | Kisae Abso DMT1250 |
|---|---|---|
| Overall rating | 3.8/5 | 2.9/5 |
| Value 30% | 50 $8 per amp ($399.99, 50 A) | 60 $6.98 per amp ($349, 50 A) |
| Charge current 20% | 50 50 A | 50 50 A |
| Efficiency 10% | 67 94% peak efficiency | 22 90% peak efficiency |
| Features 20% | 75 solar input, smart alternator support, Bluetooth | 50 solar input, smart alternator support |
| Warranty 20% | 100 5-year warranty | 0 1-year warranty |
Specifications
| Renogy PRO 50A DC-DC MPPT IP67 | Kisae Abso DMT1250 | |
|---|---|---|
| Charging | ||
| Charge current | 50 A | 50 A |
| Input battery | 12/24 V | 12/24 V |
| Output battery | 12/24 V | 12 V |
| Battery types | AGM, gel, flooded, LiFePO4 | - |
| LiFePO4 profile | Yes | Yes |
| Smart alternator support | Yes | Yes |
| Peak efficiency | 94% | 90% |
| Isolated | - | No |
| Solar | ||
| Solar input | MPPT, up to 750 W | MPPT |
| Max solar voltage | 50 V | 32 V |
| Build | ||
| Bluetooth | Yes | No |
| Ingress rating | IP67 | - |
| Weight | 5.5 lb | 4.1 lb |
| Warranty | 5 years | 1 year |
| Released | - | 2022-10 |