Go Power GPC-45-MAX
#12 in StandaloneFull review
A straightforward lead acid converter charger for a trailer that will keep its flooded or AGM batteries.
Amazon $191.99$191.99
The Go Power GPC-45-MAX rates 2.7 among standalone RV converter chargers; the Progressive Dynamics PD4645V rates 2.2 among panel and drop-in ones. The Go Power GPC-45-MAX costs $106.16 less ($191.99 vs $298.15).
Progressive Dynamics PD4645V
#10 in Panel and drop-inFull review
A proven fix for a dead converter in an older Parallax, Magnetek or WFCO power center that still runs lead acid batteries.
Amazon $298.15$298.15
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 (standalone and panel and drop-in), 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 | Go Power GPC-45-MAX | Progressive Dynamics PD4645V |
|---|---|---|
| Overall rating | 2.7/5 | 2.2/5 |
| Value 35% | 38 $4.27 per amp ($191.99, 45 A) | 11 $6.63 per amp ($298.15, 45 A) |
| Output 10% | 30 45 A | 30 45 A |
| Features 30% | 40 multi-stage charging, fan runs only as needed | 20 multi-stage charging |
| Warranty 25% | 25 2-year warranty | 25 2-year warranty |
Specifications
| Go Power GPC-45-MAX | Progressive Dynamics PD4645V | |
|---|---|---|
| Charging | ||
| Output | 45 A | 45 A |
| Lithium mode | No | No |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Standalone | Panel or drop-in |
| Fan runs only as needed | Yes | - |
| Remote or display | No | No |
| Weight | 5 lb | 9 lb |
| Warranty | 2 years | 2 years |