PowerMax PM4-100
#1 in StandaloneFull review
A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. Its high output suits a large lithium bank.
Amazon $189$189
An RV converter charger turns 120 V shore or generator power into the 12 V that runs the lights, fans, water pump and furnace, and charges the house battery while it does. These rankings compare what the makers publish on the same terms: how much current it puts out for the money, whether it can charge a lithium battery properly, how it charges, how noisy its fan is and how long it’s covered.
Build is the first choice. A drop-in section or power center fits where the RV’s original converter sits in the distribution panel, so the breakers and fuses stay as they are or come new in the same box. A standalone converter is wired on its own, often under a bed or in a bay, and suits an upgrade alongside the old panel or a new build.
Output is the second. A small trailer with one battery gets by on 35 to 45 A; a lithium bank recharges faster and heavy 12 V loads run without drawing the battery down at 60 A or more. Units over about 60 A often need a 20 A outlet or their own breaker.
Battery type is the third. A converter without a lithium profile can leave a LiFePO4 battery undercharged or hold it at the wrong voltage, so if you have lithium or plan to switch, pick one with a lithium mode, automatic detection or a lithium switch.
Top Picks
Shop by Build
Standalone
15 rankedConverters wired on their own: an upgrade alongside the old panel, or a new build.
Top rated: PowerMax PM4-100 $189
Panel and drop-in
11 rankedReplacement converter sections and full panels that fit where the RV's original one sits.
Top rated: Progressive Dynamics PD4060CSV $252.73
Narrow It Down
By budget
By feature
Deals
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.
Best Standalone RV Converter Chargers
- PowerMax PM4-100#1 of 15Full review
A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. Its high output suits a large lithium bank.
Amazon $189$189100 AYes2 years - PowerMax PM4-75#2 of 15Full review
A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. Its high output suits a large lithium bank.
Amazon $149$14975 AYes2 years - Progressive Dynamics PD9380V#3 of 15Full review
The pick for an RV owner who wants a lithium ready deck mount converter with a remote pendant in the box. Its 80 A output suits a big lithium bank.
Amazon $290$29080 AYes2 years - PowerMax PM3-55LK#4 of 15Full review
A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. A common budget replacement for a WFCO 9855 class unit.
Amazon $137$13755 AYes2 years - Progressive Dynamics PD9360V#5 of 15Full review
The pick for an RV owner who wants a lithium ready deck mount converter with a remote pendant in the box. A direct upgrade for an old PD9100 or PD9200.
Amazon $259.99$259.9960 AYes2 years
Best Drop-In RV Converters and Power Centers
- Progressive Dynamics PD4060CSV#1 of 11Full review
The direct fix for a failed converter in a PD4060 power center, or a step up from a 45 A section.
Amazon $252.73$252.7360 AYes2 years - WFCO WF-8965-AD#2 of 11Full review
For an RV whose WF-8900-AD power center has failed or needs lithium support, as an exact fit replacement. Choose the amperage your RV shipped with or one step up.
Amazon $338.95$338.9565 AYes2 years - Progressive Dynamics PD4045CSV#3 of 11Full review
The direct fix for a failed converter in a PD4045 power center, with lithium support built in.
Amazon $199.50$199.5045 AYes2 years - WFCO WF-8955-AD#4 of 11Full review
For an RV whose WF-8900-AD power center has failed or needs lithium support, as an exact fit replacement. Choose the amperage your RV shipped with or one step up.
Amazon $274.99$274.9955 AYes2 years - WFCO WF-8945-AD#5 of 11Full review
For an RV whose WF-8900-AD power center has failed or needs lithium support, as an exact fit replacement. Choose the amperage your RV shipped with or one step up.
Amazon $217.57$217.5745 AYes2 years
How We Rank
Each converter is ranked against others with the same build, and scored on its price per amp, its rated output, its lithium mode, multi-stage charging, fan control and remote, and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per amp of output | 35% |
| Output | rated 12 V output | 10% |
| Features | lithium mode, multi-stage charging, quiet fan and remote | 30% |
| Warranty | warranty length | 25% |
How we rank explains each factor in full.