FAQ's  Converters Transfer switches Batteries Inverters

Question ? !!!!! Use the search above to find an answer !!!!
What Type of batteries are recommended?Deep cycle Flooded Lead Acid, AGM , Gel Cell
Battery size should not be less than the converter size in AMPS.
Can I install a higher amperage converter?. Do not install a converter whose amperage rating is higher than that which originally came installed in your application.
Doing so may cause wiring to overheat, resulting in damage to components and/or fire
Can I charge more than 1 bank with my converter?An Isolator should be used between the engine/ start and the coach / house batteries. This will prevent discharging the starting battery when using the coach.
What does the V mean at the end of my model number?The V means "Retail Packaged"
What does Boost, Normal, and Storage equate to?What we call boost , normal and storage. Equates to Bulk, Absorption and Trickle.
What output voltage should I measure on the converter?The converter output should be 13.6. When disconnected from the battery , or when the batteries are fully charged. When the shore power is connected the battery voltage should rise close to this as it charges.

The + output of the converter, The + side of the DC panel, and the + side of the battery all hook in common.

The – side of the converter . the – side of the DC panel, and the – side of the battery all hook in common.

Check the converter output, then the battery. If it is not charging there is a bad connection or blown fuse somewhere preventing operation.
Are you purchasing a Progressive Dynamics product on the internet?Before you buy, ask the seller about their warranty procedures. Does the retailer provide a "working" customer service or service department phone number? Does the Progressive Dynamics product that you are buying have a valid serial number? Some online retailers are selling Progressive Dynamics' products without a valid serial number...DON'T BUY THEM! We must have a valid serial number for all warranty service work. A valid serial number allows your warranty service topics to be handled smoothly and with ease. Call 269-781-4241, extension 145; email us at service@progressivedyn.com or write us:

Warranty Disclaimer
Progressive Dynamics, Inc.
507 Industrial Road
Marshall, MI 49068
Why do Recreational Vehicles need Converter/Chargers?Remote camping in a modern recreational vehicle requires an electric power source (i.e. a 12-volt battery system). The power converter recharges the battery and supplies 12-volt power for the lights and appliances when 120–volt AC power is available. Most RV Manufacturers now specify Electronic Power Converter/Chargers.
Why are my batteries are not charging when connected to my Tow Vehicle ?The charge wire from the 7 pin trailer connector would go to the battery but not directly, or the coach battery will drain the start battery.

7 pin connector information

What is an Electronic Converter/Charger?Electronic type converter/chargers were first developed for the military and aerospace programs to meet stringent requirements for reliability and small size. As the cost of components decreased and reliability was increased even further, electronic converter/power supplies became the standard for the computer industry.

Electronic converter/chargers had the advantage of being smaller, lighter and they provided the ripple free output voltages these sensitive electronic circuits required.

In the early 1990's, the component cost reductions and continued increases in component reliability had reached a point where it was economically feasible to design an electronic power converter for the RV industry.

Progressive Dynamics introduced our first electronic converter in 1993 and since then, we have produced over 2,000,000 units. Our field experience and constant improvements have made our units the most reliable on the market today.
How do Electronic Converter/Chargers Operate?Electronic converter/chargers first convert the 120 VAC 60 Hz from the outlet to 120 VDC after it passes through Diode Rectifier #1, the Capacitor then filters the ripple voltage. This 120 VDC voltage is then fed to an Electronic Switching Circuit that converts it to back to AC and increases the frequency from the original 60 Hz to 3,500 HZ. This high frequency AC voltage is now fed to a step-down transformer where the output voltage reduced to approximately 13.6 volts AC and Diode Rectifier #2 converts the AC to 13.6 Volts DC and the Capacitor filters out the ripple.


What is the maximum rate my Converter/Charger will re-charge my battery?The 9200 Series and 9100 Series electronic Converter/Chargers can charge the battery at their maximum current output rating, provided there are no other 12-volt systems operating and if the battery is discharged enough to accept this charge rate. Progressive Dynamics presently manufacturers six different models of the 9100 series and four models of the 9200 series power converters as shown in the chart below. The last two digits of the part number indicate its maxim current charging capability in amps.

Maximum Output & Charging Rate 9200 Series Model 9100 Series Model
30-amps PD9130
40-amps PD9140A
45-amps PD9245C PD9145A
60-amps PD9260C PD9160A
70-amps PD9270 PD9170
80-amps PD9280 PD9180
Does my Converter/Charger completely shut-off when the battery reaches full charge?When the battery reaches full charge, the charging current of the converter drops down to between 20 and 25 milliamps. Batteries will self-discharge themselves at this low rate even when no other 12-volt current loads are present. The converter senses this current loss and automatically replaces this lost current to maintain full battery charge.
Why doesn’t the fan on my converter run all of the time?The fan provided on Progressive Dynamics 9200 and 9100 series converters is an intelligent fan and uses an electronic temperature sensing system that operates the fan only as much as required usually under high current drain applications. This means that the fan typically will not operate at night when the RV owner has turned off most 12- volt lights and appliances and is trying to sleep.
Does my converter have short circuit protection?Yes, the 9200 and 9100 series of converters all incorporate a sophisticated electronic current limiting circuit that automatically shuts the converter down very rapidly in the event of a short or current overload condition, without blowing the fuses. This protective circuit will automatically reset itself once the short or overload condition is eliminated.
What is the term of the converter warranty?
How do I Register ?
The Progressive Dynamics new converter warranty is 2-years and is determined by the date of purchase of the RV. Warranty registration is not required. Just save your receipt.
What are the fuses on the front of the converter designed to do?These fuses protect the converter from damage in the event the battery is connected to the RV in reverse. A reverse battery hook-up is the only thing that will blow these fuses. Before replacing a converter suspected of being inoperative always, check these fuses first! These are standard automotive type 30 amp fuses.
How long will it take to re-charge my RV battery?Battery recharge time is controlled by many factors, such as battery size, converter output rating the number of 12-volt lights and appliances that are “ON” during the re-charge cycle and how far the battery has been discharged. In our testing a 125-AH (Amp Hour) battery was fully discharged to 10.5-volts and then connected to a PD9160 (60-Amp) Converter/Charger set to our standard output voltage of 13.6-volts. The battery reached full charge in 70-hours.
I dry camp most of the time and want to recharge my RV batteries using my generator the next day. Is there any way I can get a faster recharge rate?Yes, all 9100 Series Converter/Chargers are equipped with our TCMS (Total Charge Management System) Connector to allow you to easily install our Charge Wizard. All 9200 Series Converter/Chargers are equipped with the TCMS / Charge Wizard built in. The Charge Wizard senses that your batteries are low and that you want to charge them fast therefore, it automatically increases the output voltage of the Converter/Charger to 14.4-volts and will return a 125-AH battery to 90% of full charge in 2-3 hours. Full charge is achieved in approximately 15 hours.
Can I connect a solar panel to my batteries without harming the Converter/Charger?Yes, adding a solar panel with a solar charge controller connected to the battery will not adversely affect our Converter/Chargers.
How do I extend the Pendant ?Go to showmecables.com
Use their custom cable builder option and select a 4 wire cable with rj-22 ends to the length you need.
buy . an RJ22 Female to RJ22 Female Handset Cord Inline Coupler Adapter - Straight Pinout
Part no. 1067
Using the above cable and coupler connect to the Pendant and the PD9200.
What is the difference between a PD9200 and PD4600The PD4600 is a direct slide in replacement. It has the same electronics as the PD9200 series except the wizard manual lbutton and lite reside on the fuse board. It has 2 fans and the proper wiring and cooling to replace the following.

Paralax Magnetec WFCO Progressive Dynamics
6336 8935 PD4635
6345 8945 PD4645
6355 8955 PD4655
7345 PD4645
7355 PD4655

The PD9200
is a deck mount style converter with a cord to plug in an AC outlet. It is designed to stand alone, mounted on a floor or wall . It comes with an external Wizard control Pendant for the button and light.
Do the PD9100 and PD9200 come with a cord / plug ?The PD9100 and PD9200 series converters come with an AC cord.
80 amp and 40 amp/24V models have a 20amp plug, all other models are equipped with a 15 amp plug.
The 20 amp plug requires a 20 amp outlet. The 15 amp plug will work on a 15 or 20 amp outlet.
Will equalization affect AGM batteries ? Equalization when applied in the conventional sense to LA battery chargers, means up to 15.5 volts for a period often exceeding an hour.
The equalization cycle that we use is mild, 14.4 volts for 15 minutes every 21 hours when in storage mode. This has been proven to be good at reducing sulfation in the Lead Acid Wet batteries. It also has no effect on AGM .
We have been reassured by AGM manufacturers that the profile we use is good for AGM batteries.
What Wire size do I use?The + and - wire needs to be capable of handling the full amperage output of the converter for the distance between the converter and battery. If the + wire is longer than 18” it needs to be fused within 12” of the battery to protect the wire.
The ground wire on the side of the converter needs to be 8 GA bare copper to the chassis.
Wires should be sized according to the RIVA / NEC codes. By a licensed electrician.
For a rough guide see:
Wire sizing
How do I connect / wire a converter to my Battery?The + and - wire needs to be capable of handling the full amperage output of the converter for the distance between the converter and battery. If the + wire is longer than 18” it needs to be fused within 12” of the battery to protect the wire.
The ground wire on the side of the converter needs to be 8 GA bare copper to the chassis.
Wires should be sized according to the RIVA / NEC codes. By a licensed electrician.
For a rough guide see:wire sizing
How do I connect / wire a PD9200 or PD9100?The + output goes to the battery or the fuse panel depending on how things are set up. Any wire connecting to the + of the battery must have a fuse in it to protect the wire within 12" of the battery.
The - output will go to the - side of the DC system , which could be the battery post or a chassis ground bar.
The above wires need to handle the full output of the converter for the distance, the less voltage drop the faster the charging cycle will be. The maximum wire guage is 4 stranded.
The wire on the side of the converter is a safety ground and must be of 8 guage or larger connected to the closest metal point of the grounded chassis.
How do I connect / wire a PD4000 , PD4500?The Shore AC power cord will come into the unit to the main breaker , netrual bar and ground bar. The AC power is then distributed to 120 Volt items through the AC breakers , neutral and ground bars. Power to the converter should be supplied from a 15 amp breaker.

Your DC items go to the individual numbered wires , corresponding to fuses . + side

Your – return side of DC items go to a ground bar ouside of the PD4045 which in turn is connected to the DC – side of the system and battery. Or sometimes the chassis is the DC return and the lights , etc are connected through the chasis.
How do I connect / wire a PD4135? The Shore AC power cord will come into the unit to the main breaker , netrual bar and ground bar. The AC power is then distributed to 120 Volt items through the AC breakers , neutral and ground bars. The converter Hot, Black, would go to a 15 amp breaker. Just the red wire in position 001 goes to the battery. The second red wire is for a 30 amp max DC circuit , the blacks are for 20 amp max DC circuits.
Your DC items go to the individual numbered wires , corresponding to fuses . + side
Your – return side of DC items go to a ground bar outside of the PD4045 which in turn is connected to the DC – side of the system and battery. Or sometimes the chassis is the DC return and the lights , etc are connected through the chassis.
How do I add a pendant to the PD4600?Note that all the wizard features are built into the 4600 and operate automatically without the Pendant.

The PD4600 comes with a DC Fuse board that contains the button and light of the pendant.
If one finds need for this feature externally then the remote pendant can be made up.

It connects to the 4 pin header on the converter section.

The instructions to modify one are here:Modify Pendant
Buy it for the PD4600 Here:

Where do I purchase the "Lifetime Warranty" for my new converter?PDI Plus Lifetime Warranty is here.
What should I use in my Tiny House?There are panels that have the 120 Vac and the 12 volt DC all in one.
For 30 amp service
PD4135KV PD4045K
or for 50 amp service PD4500

These are listed for RV use . Wether they are legal for use in a Tiny House or not will depend on building codes, National, Local Etc.
More information can be found here.

Google search for Tiny House electrical.
How long is the PD12011 Inverter display cord ? The remote has 1 length (25') you must use the supplied 25' cable
Can I extend the PD12011 display cable ?No. Only the supplied cable will work.
Can I mount the PD1200 Inverter upside-down Upside down is not an optional. Both acceptable positions are shown on page 9 in the inverter manual.
What direction does the fan blow on the PD1200 inverter?Fan blows inwards.
Will a converter work on the output of an inverter ?
PD1200 series.
A converter will not work on the output. The large peak current of our converters will slam into a current limit on the inverter and it will shut off.