Renogy REGO 60A DC-DC Charger
#4 in 40 A and upFull review
For an RV owner building a REGO system who wants Bluetooth and RV-C built in. Otherwise the plain 60 A model is far cheaper.
Amazon $429.99$429.99
The Renogy REGO 60A DC-DC Charger is the better DC-DC charger overall, rated 3.7 to 3.4. The Renogy REGO 60A DC-DC Charger leads on features and warranty. The Renogy REGO 60A DC-DC Charger costs $333.31 less ($429.99 vs $763.30).
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
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 REGO 60A DC-DC Charger for features (smart alternator support, Bluetooth vs smart alternator support) and warranty (3-year warranty vs 2-year warranty).
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 REGO 60A DC-DC Charger | Sterling Power BB12120 120A |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Value 30% | 58 $7.17 per amp ($429.99, 60 A) | 60 $6.94 per amp ($763.30, 110 A) |
| Charge current 20% | 100 60 A | 100 110 A |
| Efficiency 10% | 67 94% peak efficiency | 67 94% peak efficiency |
| Features 20% | 50 smart alternator support, Bluetooth | 25 smart alternator support |
| Warranty 20% | 50 3-year warranty | 25 2-year warranty |
Specifications
| Renogy REGO 60A DC-DC Charger | Sterling Power BB12120 120A | |
|---|---|---|
| Charging | ||
| Charge current | 60 A | 110 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 | 94% | 94% |
| Solar | ||
| Solar input | No | No |
| Build | ||
| Bluetooth | Yes | No |
| Weight | 7 lb | 4 lb |
| Warranty | 3 years | 2 years |
| Released | 2022-03-27 | - |