Replacing a Uni-Select battery in an RV typically involves accessing the battery compartment, removing the old unit, and installing a compatible replacement. For key fobs or small auxiliary batteries (e.g., CR2032), the process requires careful handling of battery orientation and housing. Larger systems like RV auxiliary batteries (e.g., 46B24LX) demand precise model matching and secure mounting. Always verify specifications and test functionality post-replacement.
What tools are needed to replace an RV’s Uni-Select battery?
Basic tools include a flat-head screwdriver, gloves, and a replacement battery matching the original’s voltage and dimensions. For key fob batteries, plastic pry tools prevent housing scratches.
Start by locating the battery compartment—often under a slide-out panel or behind a secured cover. Use a flat-head screwdriver to gently pry open the housing, avoiding excessive force that could crack plastic components. For example, RV key fobs often have a rear seam that releases when pressure is applied with a spudger. Pro Tip: Place a cloth between the tool and housing to minimize surface damage. Larger RV auxiliary batteries may require a wrench to disconnect terminals safely. Always verify polarity markings (+/−) before removing the old battery. ⚠️ Critical: Wear insulated gloves when handling lead-acid batteries to prevent acid exposure. What’s the risk of mismatched batteries? Incorrect voltage or dimensions can damage electronic systems or cause poor contact.
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How do I identify the correct battery model?
Check the existing battery’s label for codes like CR2032 or 46B24LX. Cross-reference with OEM manuals or scan QR codes on RV components for specifications.
Battery labels typically display voltage (e.g., 12V), capacity (e.g., 100Ah), and physical dimensions. For key fobs, the model is often printed on the battery itself—CR2032 being common. RV auxiliary batteries might use codes like Group 24 or 27. A mismatched Group 24 battery in a Group 27 tray, for instance, will leave dangerous gaps causing vibration damage. Pro Tip: Photograph the original battery’s orientation before removal to ensure proper reinstallation. Confused about compatibility? Contact the RV manufacturer or consult Redway Battery’s cross-reference charts for verified alternatives.
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| Battery Type | Common Models | Typical Use |
|---|---|---|
| Key Fob | CR2032, CR2025 | Remote entry systems |
| Auxiliary | 46B24LX, Group 31 | RV lighting, inverters |
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FAQs
Only if voltage, dimensions, and terminal type match exactly. Generic key fob batteries often lack quality seals, leading to premature failure.
What if the new battery doesn’t fit the compartment?
Never force it—double-check model numbers. Ill-fitting batteries risk short circuits or damage to retention clips.
