New Braunfels, TX

Mobile RV Battery & Charging Repair in New Braunfels, TX

On-site testing, replacement, and lithium upgrades for RV house batteries. Local pros also check the converter, charger, and any slow drain to find why your rig won't hold power.

Call (830) 402-5300 Request Service

Mobile service, a local pro comes to your rig
Written quote before any work starts
Emergency service available
Serving campsites, storage lots, and driveways

A dead or dying battery bank is the top reason an RV won't power up. And it is rarely as simple as old batteries. A local pro tests before selling you anything. Each battery gets a load test. The pro measures the converter and charger output and checks the shore-power, solar, and alternator charging paths. That shows if power is going in and staying in. Just as often the batteries are fine. The real cause is a tired converter, a corroded ground, or a slow drain quietly pulling the bank flat while the rig sits in storage.

When batteries are truly done, a local pro replaces them on-site. That means sulfated, swollen, or unable to hold a load. Local pros handle flooded and AGM deep-cycle types and full lithium (LiFePO4) upgrades with the right charge profile and, when needed, a DC-DC charger. Texas heat is hard on batteries. So the pro also checks the terminals, cables, and grounds that heat and vibration loosen. Large custom lithium and inverter builds or a rewired main harness are the exception. Those get scoped as bigger project work.

RV Battery & Charging Repair in New Braunfels specifically

Between summer river-season heat and long storage stretches near Gruene, house batteries here wear out faster than owners expect. Slow drains in stored rigs are the call we get most.

Local conditions behind this pattern: strong hill country sun that dries out roof sealant fast.; spring hail along the i-35 corridor..

A local pro fixes it right where you camp. No towing and no waiting in a shop.

Symptoms owners describe

Batteries go dead overnight or won't hold a charge
The rig won't power up on battery, only on shore power
Batteries read low even after driving or a full charge
Lights dim or flicker and the pump runs weakly
You want to upgrade from lead-acid to lithium

How the diagnosis works

Load-test each battery against its rated capacity
Measure the converter and charger output and charge voltage
Check the shore-power, solar, and alternator charging paths
Test for a slow drain with the rig sitting still
Inspect the terminals, grounds, and battery cables for corrosion

How the repair typically goes

Replace failed batteries or do a lithium (LiFePO4) upgrade
Replace or repair a failed converter or charger and set its profile
Repair corroded grounds, terminals, and undersized cables
Find and fix slow drains pulling the bank down
Check charge and hold under load before closing up

Repairable at your site

Battery load testing, replacement, and lithium upgrades
Converter, charger, and DC-DC charger repair or replacement
Slow-drain diagnosis and ground or cable repair

When a shop or dealer is required

Large custom lithium and inverter builds beyond on-site work
A damaged main wiring harness that needs a full rewire

Parts commonly involved

Deep-cycle flooded, AGM, and lithium (LiFePO4) batteries
Converter or charger and DC-DC chargers
Battery cables, terminals, and lugs
Battery isolators and lithium BMS
Grounds and battery-bay bus bars

What affects the price

Every visit starts with diagnosis and a written quote before repair work begins. These factors move the number:

Battery type and count (lead-acid versus lithium)
The size of a lithium upgrade (charger, DC-DC, BMS)
Whether the converter or charger needs replacing
How long it takes to trace a slow drain

How much does mobile RV Battery & Charging Repair cost in New Braunfels, TX?

Most mobile RV Battery & Charging Repair in New Braunfels, TX runs $150 to $700 for most testing, charging, and replacement work. On-site labor typically runs $120–$175 per hour, with a service call of $95–$150, credited toward the repair. Simple fixes cost the least. The final price depends on parts, roof or slide access, and your rig make and model. These are rough ranges, not a quote. Every visit starts with an on-site check and a written quote before any work.

Battery & charging-system diagnostic: $95–$200
Deep-cycle battery replacement (per battery + install): $200–$450
Lithium (LiFePO4) upgrade: $600–$1,800+
Converter/charger replacement: $300–$650
Parasitic-draw diagnosis: $150–$350
On-site labor rate: $120–$175 per hour
Service call / diagnostic: $95–$150,credited toward the repair

Want a real number for your rig? Call (830) 402-5300 and tell us what it is doing. You get a written quote before any work begins.

Dispatch coverage in New Braunfels

Mobile service dispatches to campsites, storage lots, and driveways within roughly 25 miles of New Braunfels, including areas along I-35, TX-46, Loop 337.

RV locations local pros commonly serve

Camp Landa Resort : Full-hookup riverfront RV park at 565 N Market Ave with Comal River access downtown.
New Braunfels RV Park : Full-hookup RV park at 2136 N I-35, next to the Buc-ee's travel center.
Treeside RV Resort : Large 260-site full-hookup RV resort on the N I-35 frontage road.
Long Creek RV Park : Full-hookup RV park at 5216 FM 725 near the Guadalupe River and Schlitterbahn.
Canopy RV Resort : Full-hookup luxury RV resort at 1160 Lakeside Pass near the Guadalupe River.
River Ranch RV Resort : RV resort at 420 N Business IH-35 with private Guadalupe River access and a boat ramp.
Rivercity RV Park : Full-hookup RV park at 7965 Old Bastrop Road near I-35 south of town.
Sun Retreats Texas Hill Country : Full-hookup RV sites and cottages at 131 Rueckle Road, formerly Hill Country RV Resort.
Camp Fimfo Texas Hill Country : Large RV resort at 520 Whitewater Way on the Guadalupe River near Gruene.
Camp Comal : RV park and campground at 1901 Kuehler Ave with full-hookup and primitive sites.
River RV New Braunfels : Riverside RV park on the Guadalupe River with private river access.
Ol' River Hideaway RV Park : RV park on River Road along the Guadalupe River.
Rio Guadalupe Resort : Riverfront RV park and cabins at 14130 River Road on the Guadalupe.
Lazy L&L Campground : Riverfront RV and tent camping on River Road toward Canyon Lake.
Camp Huaco Springs : 30-acre riverfront campground at 4150 River Road near the First Crossing.
KL Ranch Cliffside : Family-run riverfront campground at the First Crossing on River Road.
River Road Camp : Guadalupe River campground at 6385 River Road near the Second Crossing.
Second Crossing Camp : Riverfront RV and tent campground at 6515 River Road.
Billy Goat's Gruff Campground : Guadalupe River campground at 8570 River Road with riverfront sites.
Soggy Dollar Camp : Riverfront campground at 9168 River Road on the Guadalupe.
CaP's Crossing : Guadalupe River campground at 9360 River Road with full-hookup RV sites and cabins.
Mountain Breeze Camp : Riverfront campground around 9250 River Road with camping and cabins.
Meckel's Landing at Rocky Beach : Riverfront camping at 12794 River Road on the Guadalupe.
Class A Boat & RV Storage : Enclosed and covered RV and boat storage at 276 Purgatory Road.
Engel RV & Boat Storage : Covered and open RV and boat storage at 528 Engel Road, just off I-35.
Toy Box Ranch Storage : Indoor and outdoor RV, boat, and vehicle storage at 10000 Hwy 46 West.
Rodeo Self Storage : Self-storage with RV and boat parking at 3090 W San Antonio Street near I-35.

These are some of the RV spots local pros get called to most. They are not limited to them. A local pro also comes to any other campsite, storage lot, or driveway in the area.

Access notes

Some riverside campgrounds have tight inside roads. Large trucks may need to park at the entrance.
Low-water crossings close in floods and can delay river-road calls.

RV Electrical Repair in New Braunfels
Careful 12V and 120V fault tracing, converter and inverter repair, battery system service, and shore-power troubleshooting at your site.
RV Solar Repair
Local pros test and fix RV solar systems, from panels and charge controllers to wiring and batteries. They also install right-sized upgrades at your site.

Nearby service areas

Frequently asked questions

Why do my RV batteries keep dying?

Both a bad battery and a bad charging system are common, so a local pro tests to find the real cause first. The pro load-tests each battery. The pro checks the converter and charger output. The shore power, solar, and alternator charging paths get checked too. The pro also looks for a hidden draw that drains the batteries while the RV is parked. If a battery is worn out or won't hold a load, the pro replaces it. That includes lithium (LiFePO4) upgrades. If the batteries are healthy, the fix is often a weak converter, a bad ground, or a hidden draw.

How is mobile RV repair priced?

You pay a service-call fee that covers travel and diagnosis. Then you pay for parts and labor on the repair you approve. A local pro gives you the diagnosis and a clear quote before any repair work starts. A pro never works on an open-ended okay. A few things change the price. Those are the part type, how hard the access is, and the size of the repair. Each service page explains this.

How quickly can a local pro get to me?

It depends on a few things. Your spot in the service area matters. So does how busy local pros are and whether your problem is an emergency. A local pro books scheduled visits for a time window and puts emergency calls first by safety. When you call, we take your request and share a real ETA from the pro instead of a blanket promise. We also follow up with you if the schedule changes.

Looking for the general service overview? See RV Battery & Charging System Repair, or everything available in New Braunfels.

Need rv battery & charging repair in New Braunfels?

Call for honest phone triage, or send a service request and dispatch will follow up with a realistic window.