Progressive Dynamics Upgrade Compatibility
Upgrade from Progressive Dynamics to PowerMax
PowerMax converters are compatible with systems using Progressive Dynamics units and offer greater control for lithium charging, adjustable voltage output, and high-demand power applications.
This page focuses on model-to-model compatibility and replacement charts. If you’re weighing PowerMax against Progressive Dynamics on features rather than looking for a specific replacement part, see PowerMax vs. Progressive Dynamics Converters for a full side-by-side comparison.
Why Upgrade from Progressive Dynamics?
While Progressive Dynamics units are reliable, many models have limitations, such as:
- Fixed charging profiles
- Limited voltage adjustability
- Less flexibility for lithium optimization
- Not ideal for automotive, service, or adjustable power supply applications
PowerMax Advantages
- Adjustable voltage output from 13.0V–16.5V on select models
- Better support for lithium battery tuning
- Power supply mode for diagnostics and service applications
- Higher amperage options available
- Strong replacement options for RV, marine, off-grid, and high-demand systems
Best Direct Replacement Options
For standard replacement applications:
- PowerMax PM3-55 – Standard upgrade replacement
- PowerMax PM3-55-SME – Adjustable voltage version for users who want more charging control
Upgrade Option: Higher Performance
For lithium batteries, larger battery banks, or higher-demand systems:
These models provide higher output capacity and are ideal when upgrading beyond the original converter size.
The charts below cover the most commonly replaced Progressive Dynamics, WFCO, and IOTA converter models. Match your existing converter’s model number in the left column to find the recommended PowerMax replacement and any notes on output or fit. If your exact model isn’t listed, the general rule is to match or exceed the original amperage rating, and to size up if you’ve added lithium batteries or a larger battery bank since the original converter was installed.
Progressive Dynamics to PowerMax Compatibility Chart
| Progressive Dynamics Model | PowerMax Replacement | Notes |
|---|---|---|
| PD9130 | PM3-35 | Direct swap |
| PD9145 | PM3-45 | Direct swap |
| PD9160 | PM3-55 / PM3-60 | Popular replacement |
| PD9180 | PM3-75 | Higher output upgrade |
| PD9200 Series | PM3 / PM3-SME Series | Best upgrade option |
PowerMax Converter Compatibility Chart
Use this chart to quickly identify the correct PowerMax replacement for common converter brands.
WFCO to PowerMax
| WFCO Model | PowerMax Replacement | Notes |
|---|---|---|
| WF-8735 | PM3-35 | Direct replacement |
| WF-8745 | PM3-45 | Direct replacement |
| WF-8755 | PM3-55 | Direct replacement |
| WF-8955 | PM3-55 / PM3-75 | Most common upgrade |
| WF-9855 | PM3-55 / PM3-75 | Upgrade recommended |
Progressive Dynamics to PowerMax
| Progressive Dynamics Model | PowerMax Replacement | Notes |
|---|---|---|
| PD9130 | PM3-35 | Direct swap |
| PD9145 | PM3-45 | Direct swap |
| PD9160 | PM3-55 | Popular replacement |
| PD9180 | PM3-75 | Higher output |
| PD9200 Series | PM3-SME Series | Best upgrade option |
IOTA to PowerMax
| IOTA Model | PowerMax Replacement | Notes |
|---|---|---|
| DLS-30 | PM3-35 | Comparable output |
| DLS-45 | PM3-45 | Direct alternative |
| DLS-55 | PM3-55 | Popular swap |
| DLS-75 | PM3-75 | Higher capacity |
| DLS-90 | PM3-100 | High-demand systems |
Important Notes
- Always match or exceed amperage when replacing an existing converter
- Verify wiring, breaker size, and installation space before upgrading
- PM3-SME models allow voltage tuning for lithium batteries and custom charging needs
- Higher amperage models are recommended for larger battery banks or high-demand systems
Not sure which model you need? Contact PowerMax support for a quick recommendation based on your setup.
Is a PowerMax converter a true drop-in replacement for Progressive Dynamics?
For most common models (PD9130 through PD9200 Series), yes. PowerMax replacements are sized to match or exceed the original output and use standard DC wiring connections, so most installs don’t require modifying your existing distribution panel. Always double-check breaker size and available mounting space before ordering.
Should I upgrade my amperage when replacing a Progressive Dynamics converter?
It depends on your setup. If you’re still running the same battery bank and appliances as when the original converter was installed, matching the existing amperage is fine. If you’ve since added lithium batteries, an inverter, or extra electronics, sizing up to the next PowerMax tier gives you headroom and avoids replacing the converter again later.
