RV Battery Disconnect and Storage Prep Service - Mobile
Coast to Coast RV Repair provides mobile battery disconnect and storage prep service on-site at your campground or driveway across Florida - certified technicians, same-week scheduling.
Coast to Coast RV Repair provides mobile battery disconnect and storage prep service on-site at your campground or driveway across Florida - certified technicians, same-week scheduling.
Certified technicians. $299 service call. Same-week scheduling. Call (866) 887-1199.
Florida Heat Accelerates Battery Sulfation
Battery sulfation - crystallization of lead sulfate on battery plates - occurs at an accelerated rate in Florida heat. A flooded lead-acid or AGM battery left at 50% state of charge in a 90F storage environment develops permanent sulfation damage within 3 to 4 weeks. Self-discharge rate doubles for every 10 degrees Celsius rise in temperature. At Florida summer temperatures of 35C inside a storage bay, self-discharge can reach 20-40 mA from chemistry alone before any parasitic loads are added. A Forest River Georgetown XL 369DS has a complex 12V load architecture: slide motor controllers draw 5-15 mA in standby, the Atwood furnace control board draws 8 mA continuously, the refrigerator control board draws 25 mA, and aftermarket devices like cellular amplifiers and inverters add 100-300 mA more. Jesse Earl's storage prep includes a Fluke 87V parasitic drain test with every load source identified and documented. Target total parasitic drain for stored Class A coaches is under 30 mA. Trojan T-105 6V flooded batteries tolerate Florida storage better than AGM because they can be watered to compensate for electrolyte loss, but require monthly checks. Battle Born 100 Ah LiFePO4 batteries have the best storage tolerance - self-discharge under 2% per month and no sulfation risk - though their BMS disconnects below 10V to protect cells.
Inverter Battery Cable Disconnect - The Most Commonly Missed Step
The most frequently overlooked item in DIY battery storage prep is the inverter direct-to-battery cable. Xantrex, Magnum, and Victron inverter/chargers connect directly to the battery bank with 2/0 or 4/0 AWG cables and large ANL fuses, bypassing the coach main disconnect switch entirely. Even with the coach disconnect in the off position, the inverter remains connected and draws standby current - typically 150-300 mA depending on model and firmware. The Xantrex Freedom X 2000 draws 210 mA in sleep mode with the remote panel inactive. Over 70 days, 210 mA consumes 352 Ah - more than two full Trojan T-105 batteries. The correct storage procedure requires one of three actions: install a dedicated disconnect switch on the inverter battery cable, physically disconnect the inverter battery cables and insulate the terminals, or use the inverter master power button to enter true shutdown mode if the firmware supports it - older Xantrex units often do not support true shutdown via the panel button. Coast to Coast RV Repair installs Blue Sea Systems 6006 ML-Series 500A disconnect switches on inverter battery cables as a standard storage prep upgrade. This single addition prevents the most common Class A storage battery failure.
Also see: RV Winterization Services
This page covers battery disconnect and storage prep specifically. For the full range of rv winterization services we offer, visit our RV Winterization service overview.
Case Study: Battery Disconnect and Storage Prep Repair
RV: 2021 Forest River Georgetown XL 369DS • Location: Lazydays RV Resort, Site 44 • City:
Symptom: Owner returned after 10 weeks of storage to find the chassis battery at 0.8V and the house battery bank at 6.2V across two 6-volt Trojan T-105 batteries. The Xantrex Freedom X 2000 inverter displayed fault code E-04 (under-voltage lockout) and would not reset.
Diagnosis: Jesse Earl performed a parasitic drain test using a Fluke 87V in series with the negative battery terminal with the disconnect switch off. Measured 340 milliamps of draw - above the 50 mA acceptable threshold. The primary draw traced to the Xantrex Freedom X 2000 inverter, which maintains a 210 mA standby load even in sleep mode when the remote panel is not fully disabled. The coach battery disconnect switch was wired only to the house bank, not the inverter direct battery connection. A secondary 130 mA draw came from a WeBoost Drive X RV cellular amplifier left powered in the overhead bin. Combined 340 mA over 70 days depleted both banks through the inverter DC-DC coupling.
Outcome:
Time on-site: • Total cost: • Dealer alternative:
Signs You Need Battery Disconnect and Storage Prep
- ✓Measure resting voltage on all battery banks before disconnecting
- ✓Perform parasitic drain test - target below 30 mA
- ✓Identify and document all loads above 10 mA
- ✓Fully charge all batteries before storage
- ✓Disconnect inverter battery cables or install dedicated disconnect switch
- ✓Turn off cellular amplifiers, satellite systems, aftermarket electronics
- ✓Engage coach main battery disconnect switch
- ✓Engage chassis battery disconnect switch separately
- ✓Check flooded battery water levels - add distilled water if low
- ✓Clean terminals and apply NOCO NCP2 anti-corrosion spray
- ✓Connect 2A trickle maintainer if shore power is available
- ✓If no shore power - recharge flooded batteries every 30 days
- ✓Label disconnect sequence for owner's return
Battery Disconnect and Storage Prep - Pricing
Typical price range: $145-$285
All calls start with a $299 service-call fee that covers the technician's trip to your location and the first hour of diagnosis. That $299 applies toward any repair you authorize - it is not an additional charge on top of the repair. Pricing shown is a national average range; your exact quote is provided in writing on-site before any work begins.
Battery Disconnect and Storage Prep - Common Questions
Straight answers from our battery disconnect and storage prep service call log.
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Sources and References
More RV Winterization Services
Other specialized repairs under rv winterization - all done at your location, no tow required.
Where We Provide Battery Disconnect and Storage Prep in Florida
Coast to Coast RV Repair runs battery disconnect and storage prep jobs across these cities. Click your closest one for local-specific info, response times, and campground coverage.