A standalone converter is a self-contained box, usually deck mounted, with its own AC plug or cord and battery terminals. It replaces an older standalone unit in the same spot, or goes in alongside the RV’s panel to add output or a lithium profile, and it’s the usual choice for a van or trailer build with no factory panel. The bigger units draw enough from the AC side that they need a 20 A outlet or a dedicated breaker.
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.
Full ranking 15
- 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 - WFCO WF-9875-AD#6 of 15Full review
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. Pick it for a big battery bank if you can give it a 20 A outlet.
Amazon $344.99$344.9975 AYes2 years - Progressive Dynamics PD9345V#7 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 $223.99$223.9945 AYes2 years - WFCO WF-9865-AD#8 of 15Full review
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. Pick it for a big battery bank if you can give it a 20 A outlet.
Amazon $304.99$304.9965 AYes2 years - WFCO WF-9855-AD#9 of 15Full review
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. A safe default for a typical trailer.
Amazon $248.99$248.9955 AYes2 years - WFCO WF-9845-AD#10 of 15Full review
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. A safe default for a typical trailer.
Amazon $239.99$239.9945 AYes2 years - IOTA DLS-90/IQ4#11 of 15Full 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 $379.99$379.9990 ANo2 years - Go Power GPC-45-MAX#12 of 15Full review
A straightforward lead acid converter charger for a trailer that will keep its flooded or AGM batteries.
Amazon $191.99$191.9945 ANo2 years - IOTA DLS-55#13 of 15Full review
A rugged, regulated converter for owners who value clean DC power and want to add the right charge controller themselves. Budget for an IQ controller if you want real battery charging.
Amazon $241.19$241.1955 ANo2 years - IOTA DLS-45/IQ4#14 of 15Full 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$252.4045 ANo2 years - IOTA DLS-30#15 of 15Full review
A rugged, regulated converter for owners who value clean DC power and want to add the right charge controller themselves. Budget for an IQ controller if you want real battery charging.
Amazon $217.28$217.2830 ANo2 years
