Renogy DCC30S 30A DC-DC MPPT
#2 in Up to 30 AFull review
For smaller vans and truck campers with a 100 Ah battery and a panel or two on the roof. Bigger banks or arrays need the 50 A DCC50S.
Amazon $186.99$186.99
The Renogy DCC30S 30A DC-DC MPPT rates 4.0 among up to 30 A DC-DC chargers; the Renogy 40A DC-DC MPPT Charger rates 3.2 among 40 A and up ones. The Renogy 40A DC-DC MPPT Charger costs $1.61 less ($185.38 vs $186.99).
Renogy 40A DC-DC MPPT Charger
#12 in 40 A and upFull review
A cheap dual input charger for a van with a 200 Ah lithium bank and a modest solar array.
Amazon $185.38$185.38
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.
Scores side by side
These two sit in different current classes (up to 30 A and 40 A and up), and each is scored against the reference points for its own class, so a rating says how well each does among its own current peers. How we rank explains each factor.
| Factor weight | Renogy DCC30S 30A DC-DC MPPT | Renogy 40A DC-DC MPPT Charger |
|---|---|---|
| Overall rating | 4.0/5 | 3.2/5 |
| Value 30% | 68 $6.23 per amp ($186.99, 30 A) | 89 $4.63 per amp ($185.38, 40 A) |
| Charge current 20% | 100 30 A | 0 40 A |
| Efficiency 10% | 100 97% peak efficiency | 56 93% peak efficiency |
| Features 20% | 50 solar input, smart alternator support | 50 solar input, smart alternator support |
| Warranty 20% | 50 3-year warranty | 25 2-year warranty |
Specifications
| Renogy DCC30S 30A DC-DC MPPT | Renogy 40A DC-DC MPPT Charger | |
|---|---|---|
| Charging | ||
| Charge current | 30 A | 40 A |
| Input battery | 12 V | 12 V |
| Output battery | 12 V | 12 V |
| Battery types | - | AGM, gel, flooded, LiFePO4 |
| LiFePO4 profile | Yes | Yes |
| Smart alternator support | Yes | Yes |
| Peak efficiency | 97% | 93% |
| Isolated | No | - |
| Solar | ||
| Solar input | MPPT, up to 400 W | MPPT, up to 670 W |
| Max solar voltage | 30 V | - |
| Build | ||
| Bluetooth | No | No |
| Ingress rating | - | IP31 |
| Weight | 3.1 lb | 2.6 lb |
| Warranty | 3 years | 2 years |
| Released | 2025-07 | 2026-08-23 |