Renogy 12V 40A DC-DC Charger
#4 in DC-DCFull 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
3.5/5
For big lithium banks on a budget, where raw current matters more than features. The short warranty and thin spec sheet are the trade-off.
- 60 ACharge current
- 12 VBattery
- 1 yearsWarranty
Check price at Amazon$202.49
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 60 A for about $3.40 per amp, the cheapest current here
- Refills a 100 Ah lithium battery in under 2 hours of driving
- Works with smart alternators
Cons
- Only a one-year warranty
- Draws over 60 A from the vehicle, so the alternator must have plenty to spare
- Few published specs: no efficiency, input range or standby draw
- No app or monitoring
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | RNG-DCC1212-60 |
|---|---|
| Charging | |
| Type | DC-DC charger |
| Charge current | 60 A |
| Battery voltage | 12 V |
| Lithium profile | Yes |
| Inputs | |
| Isolated | Yes |
| Smart alternator | Yes |
| Monitoring and build | |
| Bluetooth | No |
| Warranty | 1 years |
| Released | 2019-10 |
Alternatives in this type
Victron Orion-Tr Smart 12/12-30
#5 in DC-DCFull review
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 $219.30$219.30
Sterling Pro Batt Ultra BB1260
#7 in DC-DCFull review
For boats and big RV banks that need lots of alternator current and fine control over charge voltages. Van builders short on space will find the Orion XS smaller and easier.
Amazon $318.75$318.75
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