Best RV Converters
Compare 12-volt converter/chargers by output amperage, battery charging profiles and replacement fit—not by shore-power plug size.
Compare Current OptionsAn RV converter is easy to confuse with an inverter or a standalone battery charger. It does a specific job: turning campground or generator AC power into usable DC power for the coach, often while recharging the house battery. Replacement decisions hinge on DC wiring capacity, the power-center layout and the charging profile—not simply on whether the pedestal is 30 or 50 amps.
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01 Converter shortlist
These are documented 12-volt converter/charger options with different battery-profile and replacement priorities. They are not interchangeable solely because their amperage is similar.
The PD9300 series lets owners select the appropriate battery chemistry while supplying RV 12-volt loads and charging the house bank.
A long-established 60-amp converter/charger designed for 12-volt lighting, appliance loads and lead-acid battery charging.
A deck-mount AC-to-DC converter with a published 55-amp continuous rating, multi-stage charging and adjustable output mode.
The Lithium Plus family includes a 55-amp option with lithium-specific charging as well as selectable lead-acid/AGM and fixed-voltage modes.
02 Compare output and charging
Published current ratings and charging controls are starting points; inspect physical and electrical compatibility before ordering.
| Converter | DC rating | Charging detail | Use case |
|---|---|---|---|
| Progressive Dynamics PD9360 | 60A DC output | Selectable flooded, AGM and LiFePO4 profiles | Multi-chemistry 60A upgrade |
| Progressive Dynamics PD9260C | 60A DC output | 13.6V nominal; built-in Charge Wizard | Conventional 60A Charge Wizard |
| PowerMax PM3-55LK | 55A continuous output | Selectable 3-stage and fixed-voltage operation | Adjustable 55A deck-mount |
| PowerMax PM3 Lithium Plus 55A | 55A variant | Selectable lithium, lead-acid and AGM modes | Lithium-focused 55A charging |
03 Converter options explained
The following distinctions come from manufacturer specifications and instructions. They are not hands-on test results or reliability rankings.
Progressive Dynamics PD9360
The PD9300 series lets owners select the appropriate battery chemistry while supplying RV 12-volt loads and charging the house bank.
What stands out: Selectable flooded, AGM and LiFePO4 profiles. Review manufacturer documentation for model-specific details.
Who it suits: Owners replacing a 60-amp converter and planning a future lithium conversion.
Owners replacing a 60-amp converter and planning a future lithium conversion.
Confirm the old converter’s current rating, wiring, dimensions and exact PD9360 retail or OEM package before ordering.
Ownership tradeoff: Confirm the old converter’s current rating, wiring, dimensions and exact PD9360 retail or OEM package before ordering.
Check PriceProgressive Dynamics PD9260C
A long-established 60-amp converter/charger designed for 12-volt lighting, appliance loads and lead-acid battery charging.
What stands out: 13.6V nominal; built-in Charge Wizard. Review manufacturer documentation for model-specific details.
Who it suits: Owners keeping a compatible conventional battery setup and wanting a documented replacement in the same output class.
Owners keeping a compatible conventional battery setup and wanting a documented replacement in the same output class.
Do not assume its charging profile is suitable for every LiFePO4 battery; verify battery-maker requirements and consider a selectable-profile converter.
Ownership tradeoff: Do not assume its charging profile is suitable for every LiFePO4 battery; verify battery-maker requirements and consider a selectable-profile converter.
Check PricePowerMax PM3-55LK
A deck-mount AC-to-DC converter with a published 55-amp continuous rating, multi-stage charging and adjustable output mode.
What stands out: Selectable 3-stage and fixed-voltage operation. Review manufacturer documentation for model-specific details.
Who it suits: Owners needing a separate deck-mount converter with documented output modes and suitable installation clearance.
Owners needing a separate deck-mount converter with documented output modes and suitable installation clearance.
Manual voltage settings require care; verify the exact PM3-55LK variant, manufacturer instructions and battery voltage limits.
Ownership tradeoff: Manual voltage settings require care; verify the exact PM3-55LK variant, manufacturer instructions and battery voltage limits.
Check PricePowerMax PM3 Lithium Plus 55A
The Lithium Plus family includes a 55-amp option with lithium-specific charging as well as selectable lead-acid/AGM and fixed-voltage modes.
What stands out: Selectable lithium, lead-acid and AGM modes. Review manufacturer documentation for model-specific details.
Who it suits: Owners whose battery bank needs a manufacturer-supported lithium charging profile in a deck-mount design.
Owners whose battery bank needs a manufacturer-supported lithium charging profile in a deck-mount design.
Do not confuse the Lithium Plus model with the standard PM3-55LK; confirm suffix, charging mode and compatibility before purchase.
Ownership tradeoff: Do not confuse the Lithium Plus model with the standard PM3-55LK; confirm suffix, charging mode and compatibility before purchase.
Check Price04 Seven replacement checks
A converter swap can involve both hazardous AC input and high-current DC output. Fit and safe wiring take precedence over advertised charging speed.
- Identify the existing converter: Read the manufacturer model and DC output amperage on the installed unit, not just the RV’s shore-power amperage.
- Match the converter installation type: A deck-mount converter and a replacement power-center section are not interchangeable without verifying the mounting and distribution design.
- Check wiring and fuse protection: Do not increase converter amperage beyond what the RV’s conductors, distribution panel and overcurrent protection safely support.
- Verify battery chemistry and charge voltage: Select charging stages and voltage limits that the specific AGM, flooded or LiFePO4 battery manufacturer permits.
- Account for active 12-volt loads: The converter’s rated output feeds lights and appliances as well as battery charging; the entire rating is not necessarily available to recharge the bank.
- Check AC supply and ventilation: Confirm input-voltage requirements, circuit capacity, cooling clearance and the unit’s fan/temperature limits.
- Test safely after installation: Verify polarity, DC voltage and proper battery charging with appropriate instruments; use a qualified RV electrician for unfamiliar AC/DC work.
05 Choose the right replacement
Replacing a failed 60-amp converter? Record the exact old model, whether it is deck-mount or a power-center section, and the RV manufacturer’s replacement requirements. A Progressive Dynamics PD9260C may suit a compatible conventional system; a PD9360 offers selectable charging profiles but still requires a proper fit check.
Switching to LiFePO4? Compare the battery maker’s required absorption, float and low-temperature charging rules against the converter’s supported profile. The Progressive Dynamics PD9300 series and PowerMax Lithium Plus line provide selectable battery modes, but neither eliminates the need to configure them correctly.
Considering 55 amps? The PowerMax PM3-55LK and PM3 Lithium Plus 55A differ in how they handle lithium-focused charging. Confirm the exact SKU, mounting clearances and DC connection method.
For a separate shore-power battery charger, see RV battery chargers. For battery-bank selection, compare RV lithium batteries and battery monitors. An RV inverter handles the opposite conversion direction.
06 Frequently asked questions
What does an RV converter do?
An RV converter takes incoming AC power from shore power or a generator and supplies DC power to the RV’s 12-volt system while charging the house battery when designed to do so.
Is an RV converter the same as an inverter?
No. A converter generally changes AC to DC. An inverter changes battery DC to AC for compatible household appliances; some inverter/chargers combine functions.
Can I replace a 45-amp converter with a 60-amp model?
Not automatically. The existing DC wiring, fuses, power center, ventilation and manufacturer replacement guidance must support the higher output. Progressive Dynamics warns against simply upsizing during lithium conversions.
Does a lithium RV battery require a new converter?
Not always. The deciding factor is whether the current converter’s voltage and charging profile meet the specific battery manufacturer’s requirements. Some older lead-acid-only units may need replacement.
How many amps should an RV converter have?
Start with the installed unit’s rating and the RV manufacturer’s specification. Factor in simultaneous 12-volt loads and permitted battery charge current rather than selecting the largest available unit.
Why does the converter fan turn on and off?
Many converters use temperature- or load-controlled fans. Cycling can be normal, but persistent overheating, fault codes or loss of DC output needs diagnosis using the model manual.
07 Match the system, not the headline amps
Start with the exact existing converter model and the battery manufacturer’s charging specification. Then select a correctly rated replacement with the right physical installation type, DC wiring compatibility and charge profile. A feature-rich converter is not an upgrade if the RV cannot safely accommodate it.