Progressive Dynamics PD4045CSV
The direct fix for a failed converter in a PD4045 power center, with lithium support built in.
Amazon $199.50$199.50
The Progressive Dynamics PD4045CSV rates 3.1 among panel and drop-in RV converter chargers; the IOTA DLS-45/IQ4 rates 2.5 among standalone ones. The Progressive Dynamics PD4045CSV costs $52.90 less ($199.50 vs $252.40).
IOTA DLS-45/IQ4
#14 in StandaloneFull review
A rugged, regulated converter for owners who value clean DC power and want to add the right charge controller themselves. The built in IQ4 makes it a complete lead acid charger.
Amazon $252.40$252.40
Prices were last checked November 2, 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 build classes (panel and drop-in and standalone), and each is scored against the reference points for its own class, so a rating says how well each does among its own build peers. How we rank explains each factor.
| Factor weight | Progressive Dynamics PD4045CSV | IOTA DLS-45/IQ4 |
|---|---|---|
| Overall rating | 3.1/5 | 2.5/5 |
| Value 35% | 35 $4.43 per amp ($199.50, 45 A) | 21 $5.61 per amp ($252.40, 45 A) |
| Output 10% | 30 45 A | 30 45 A |
| Features 30% | 80 lithium mode, multi-stage charging, fan runs only as needed | 40 multi-stage charging, fan runs only as needed |
| Warranty 25% | 25 2-year warranty | 25 2-year warranty |
Specifications
| Progressive Dynamics PD4045CSV | IOTA DLS-45/IQ4 | |
|---|---|---|
| Charging | ||
| Output | 45 A | 45 A |
| Lithium mode | Yes | No |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Panel or drop-in | Standalone |
| Fan runs only as needed | Yes | Yes |
| Remote or display | No | No |
| Weight | 3 lb | 5 lb |
| Warranty | 2 years | 2 years |