Can I Upgrade 30 Amp Converter to 45 Amp in RV
Updated 12/01/2025 | Published 11/10/2025
Question:
I am upgrading my two lead acid batteries on a Weekend Warrior Toy Box to single 300ah lithium LiFePO4 battery. I would also like to upgrade the 20 year old Iota DLS-30 converter. Should I stay with the 30 amp converter or can I step it up? Would a 45 amp converter require changing the wiring? And what about fuses?
asked by: Kirk
Expert Reply:
Hey Kirk, it would probable be best to stick with a 30 amp setup since you know you have the correct wiring for that amperage. If you bump up to 45 amp there's chance the wiring wouldn't be able to keep up and you'd melt some wires or worse. So I would go with the part # PD49RR.
Product Page this Question was Asked From
Progressive Dynamics 9300 Series RV Converter Charger - 12V - 30A
- Power Converter
- Converter Only
- Manual Switch
- 12V
- 30 Amps
- AC to DC
- AGM
- Lead Acid
- Lithium
- RV
- Single-Stage Charge
- Progressive Dynamics
more information >
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on Power Converter
Jameson C.
12/1/2025
Hey Kirk, how did the upgrade to the 30 amp converter go with your new lithium battery setup? Your results could really help others thinking about switching from lead acid to LiFePO4. Sharing what worked might guide others planning a similar upgrade.