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Electrical

RV Battery Upgrade

Upgrade your RV batteries — lead-acid to AGM or lithium. Custom battery banks sized for your power needs. Installation in SW Florida.

RV battery upgrade and lithium conversion service
RV Battery Upgrade service

Your RV battery bank is the foundation of your electrical system. Whether you're upgrading from worn-out lead-acid to maintenance-free AGM, or making the leap to lithium iron phosphate (LiFePO4), Sun Coast RV Service designs and installs battery systems matched to your power consumption and camping style.

Certified technician performing battery upgrade service on recreational vehicle

Battery Technology Options

  • Lead-acid (flooded) — Lowest upfront cost but requires maintenance, can only discharge to 50%, and has shorter lifespan in Florida heat.
  • AGM (Absorbed Glass Mat) — Maintenance-free, better discharge depth (50-60%), and more vibration-resistant. Good mid-range option.
  • Lithium (LiFePO4) — Premium option with 80-100% usable capacity, 10x cycle life, half the weight, and built-in BMS. Ideal for boondocking.

Our Installation Process

We assess your power consumption, recommend appropriate battery capacity, configure your converter/charger for the new battery chemistry, and install with proper wiring, fusing, and monitoring. Florida's heat affects battery performance — we factor that into our sizing recommendations.

Quick Answer — RV Battery Upgrade

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Service: RV Battery Upgrade — mobile repair at your location
Provider: Sun Coast RV Service — RVIA certified since 2004
Coverage: Sarasota, Bradenton, Venice, and all of SW Florida
Cost: $225 service call, applied toward repair total
Phone: (941) 555-0147
FAQ

Frequently Asked Questions

Professional tools and parts used for battery upgrade repair
If you boondock or dry camp regularly, lithium pays for itself in longevity and usable capacity. For RVers who are always on shore power, AGM may be sufficient.
A basic lithium conversion starts around $1,500-2,500 for a single 100Ah battery with installation. Larger banks with multiple batteries run $3,000-6,000+.
Often yes. Most factory converters charge at voltages optimized for lead-acid. We adjust or replace the converter for lithium-specific charging profiles.
Sun Coast RV Service team member explaining battery upgrade repair process

Ready to Get Your RV Fixed Right?

Call now or request a free estimate. Same-day available, warranty on every repair.

Call (941) 555-0147 Get Free Estimate Online
● $225 Service Call● Same-Day Available● AC & Electrical Specialists● Since 2015
(941) 555-0147