Looking for a Converter and Inverter to Replace my 45 Amp Panel in My Motorhome

Updated 10/31/2025 | Published 02/13/2025

Products Featured in This Question

Go Power RV Converter and Smart Battery Charger - 12V - 35 Amp

(119)

$187.99

Go Power Heavy-Duty Modified Sine Wave Inverter - 3,000 Watts - 12V

(25)

$519.99

Progressive Dynamics 2000 Watt Inverter w/ Transfer Switch

(178)

$436.60

Progressive Dynamics 9300 Series RV Converter Charger - 12V - 60A

(418)

$305.30

Question:

looking to change my 45 amp panel in my motorhome to a converter inverter smart charger for lithuim batteries

asked by: Daniel T

Expert Reply:

Hello Daniel,

Happy to get you into the right converter and inverter for your lithium batteries. I see that you were looking at a stand alone charger, so that is the set-up I am going to go with.

If you have a smaller battery bank (less than 200Ah) and need a compact, efficient lithium-compatible charger, the Go Power! # 34266167 (35A) is a great choice. It offers 3-stage smart charging, a quieter fan, and automatic lithium support, making it easy to use. However, its lower 35A output means slower charging, especially for larger systems.

For larger battery banks (greater than 200Ah) or faster charging, the Progressive Dynamics # PD79RR (60A) is the better option. It provides 60A output, a 4-stage smart charging system, and a manual lithium mode switch for better customization. While it’s slightly larger and has a louder fan under high loads, it’s a more powerful and future-proof option for expanding your RV’s power system. If you’re planning future battery upgrades, the # PD79RR is the better long-term choice. I also included an image to show you how to make the battery selection for this unit.

For an Inverter it all depends on your needs:

Basic needs (microwave, TV, laptop, small appliances) Progressive Dynamics 2000 Watt Inverter w/ Transfer Switch # PD64FR.

Higher loads (air fryer, induction cooktop, A/C soft start, power tools) Go Power Heavy-Duty Modified Sine Wave Inverter - 3,000 Watts - 12V # 34280178, which also has an automatic transfer switch as well.

I have included review videos for all items listed, please take the time to watch the videos as they are a great way to get a good feel for the products before purchasing. If you are looking to change out the panel instead, please provide me the brand and model number so I can find the closest replacement.

I am sorry that I could not just give you 1 recommendation, but it really depends on how many batteries, and what appliances you are going to be using. Please feel free to comment and let me know what you think about products. If you have any questions at all, please ask away =)

expert reply by: Kate F

How to select battery on PD 9300
(click to enlarge)

Kate F.

10/30/2025

Hey Daniel, how did things go with upgrading your motorhome’s power setup for the lithium batteries? Did the Go Power charger or the Progressive Dynamics option end up being the better fit? Your update could make it easier for others planning a similar conversion.

Daniel L.

10/30/2025

@KateF it worked great I changed the charging system easy and works great so far

Kate F.

10/31/2025

@DanielL Awesome, Daniel! Always nice when a project like that goes off without a hitch. Thanks for the quick follow-up, sounds like that setup’s a winner!