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
3.3/5
For a budget build where price matters most and the vehicle has a conventional alternator.
- 40 ACharge current
- MPPTSolar input
- 94%Efficiency
Check price at Amazon$121.90
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- The cheapest 40 A charger with a solar input here
- Works across 12 V and 24 V systems in either direction
- Reverse charge can restart a vehicle with a flat start battery
Cons
- Solar limits, warranty and smart alternator support are not published
- DIP switch setup is fiddlier than a button or app
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its current. How we rank explains each one.
Specifications
| Model number | C40AMPPT |
|---|---|
| Charging | |
| Charge current | 40 A |
| Input battery | 12/24 V |
| Output battery | 12/24 V |
| Battery types | LiFePO4, lead acid, gel, AGM, calcium |
| LiFePO4 profile | Yes |
| Smart alternator support | No |
| Peak efficiency | 94% |
| Solar | |
| Solar input | MPPT |
| Build | |
| Bluetooth | No |
| Weight | 2 lb |
| Released | 2026-03-06 |
Alternatives in this current
Sterling Power BB12120 120A
#9 in 40 A and upFull review
For boats and large RVs with a big lithium bank and an alternator rated well above 140 A.
Amazon $763.30$763.30
LiTime 12V 40A DC-DC MPPT Charger
#11 in 40 A and upFull review
A low cost dual input charger for a small van with a couple of 12 V panels and a lithium battery.
LiTime $209.99$209.99
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