Renogy DCC50S 50A DC-DC MPPT
#8 in 40 A and upFull 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 $269.99$269.99
The Renogy DCC50S 50A DC-DC MPPT is the better DC-DC charger overall, rated 3.5 to 3.1. The Renogy DCC50S 50A DC-DC MPPT leads on charge current, features and efficiency. The Renogy 12V 40A DC-DC Charger wins on value. The Renogy 12V 40A DC-DC Charger costs $92.35 less ($177.64 vs $269.99).
Renogy 12V 40A DC-DC Charger
#14 in 40 A and upFull review
A cheap, quiet way to add alternator charging to a van or camper with a lithium house battery. Pay more for Victron if you want built-in Bluetooth.
Amazon $177.64$177.64
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 DCC50S 50A DC-DC MPPT for charge current (50 A vs 40 A), features (solar input, smart alternator support vs smart alternator support) and efficiency (97% peak efficiency vs 94% peak efficiency).
- Choose the Renogy 12V 40A DC-DC Charger for value ($4.44 per amp ($177.64, 40 A) vs $5.40 per amp ($269.99, 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 DCC50S 50A DC-DC MPPT | Renogy 12V 40A DC-DC Charger |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 30% | 78 $5.40 per amp ($269.99, 50 A) | 92 $4.44 per amp ($177.64, 40 A) |
| Charge current 20% | 50 50 A | 0 40 A |
| Efficiency 10% | 100 97% peak efficiency | 67 94% peak efficiency |
| Features 20% | 50 solar input, smart alternator support | 25 smart alternator support |
| Warranty 20% | 25 2-year warranty | 25 2-year warranty |
Specifications
| Renogy DCC50S 50A DC-DC MPPT | Renogy 12V 40A DC-DC Charger | |
|---|---|---|
| Charging | ||
| Charge current | 50 A | 40 A |
| Input battery | 12 V | 12 V |
| Output battery | 12 V | 12 V |
| LiFePO4 profile | Yes | Yes |
| Smart alternator support | Yes | Yes |
| Peak efficiency | 97% | 94% |
| Isolated | No | No |
| Solar | ||
| Solar input | MPPT, up to 660 W | No |
| Max solar voltage | 50 V | - |
| Build | ||
| Bluetooth | No | No |
| Weight | 4.1 lb | 4.1 lb |
| Warranty | 2 years | 2 years |
| Released | 2025-08 | 2025-09 |