Best Battery Boxes for RV: Safe, Durable Storage Solutions
Answering the search for reliable RV battery boxes, these options maximize safety, organization, and longevity for your batteries. Ideal for campers, full-time RVers, and boaters who need secure, weather-resistant storage, each pick offers distinct advantages based on space, battery type, and ventilation needs. The list below highlights five top choices with clear suitability notes to help you pick the right box fast.
| Product | Battery Type Fit | Best For | Notes |
|---|---|---|---|
| Camco Double Battery Box | 2 x 6V or 2 x 12V | Those needing dual-battery storage in a compact footprint | Corrosion-resilient polymer; inner dimensions 21.5″ x 7.375″ x 11.187″ |
| Camco Large Battery Box with Straps | Group 27/30/31 | Onboard power with secure mounting | Lift-off lid; includes hold-down strap and clamps |
| Attwood Group 24 Vented Marine Battery Box | Group 24 | Marine or RV setups needing ventilation | ACID-resistant; built-in ventilation |
| Camco Large Battery Box with Straps (55372) | Group 27/30/31 | Rugged storage with easy install | Lift-off lid; strap and hardware included |
| Attwood 9067-1 Vented Battery Box | Group 27 | Larger RV batteries in vented box | Ventilated; compatible with mounting strap |
Camco Double Battery Box
Best for a two-battery setup in a compact RV space. The Camco Double Battery Box accommodates two 6V GC2 batteries or two 12V Group 24/24M batteries. Its heavy-duty, corrosion-resilient polymer construction helps protect batteries from environmental exposure. Inner dimensions are 21 ½ inches long by 7 3/8 inches wide by 11 3/16 inches high, making it a tight but workable fit for many RV configurations. Best for users who prioritize corrosion resistance and a straightforward dual-battery layout. Caution: do not exceed the listed interior dimensions if mounting in tight compartments.
- Best for: RVers needing two batteries in a single, protected box
- Better for: those who value durable polymer construction
- Choose this if: you have space that fits roughly 21.5″ x 7.38″ x 11.19″
- Avoid this if: you require a larger single-battery box or different group sizes
Camco Large Battery Box with Straps and Hardware
This box fits Group 27, 30, and 31 batteries, offering a robust storage solution with a lift-off lid, durable woven hold-down strap, foot clamps, and stainless steel screws. It is made from lightweight yet heavy-duty corrosion-resistant polypropylene. The design supports secure mounting and better organization for mid-size RVs or boats that use higher-capacity batteries. Best for users who want added hardware for quick installation and a secure fit. Limitation: check interior dimensions to ensure compatibility with your battery model.
- Best for: mid-size battery configurations requiring included mounting hardware
- Better for: easy installation and extra security
- Choose this if: you use Group 27/30/31 batteries
- Avoid this if: your space is narrower than the box footprint
Attwood Group 27 Vented Battery Box
Designed for standard Group 27 batteries, this vented Attwood box measures 13.06″ x 6.9″ x 10.5″ inside, ensuring a precise and reliable fit. Its acid-resistant polypropylene construction withstands cold and hot conditions (-20°F to +120°F). The integrated safety venting lets gases escape while the protective cover minimizes water intrusion. Best for RVs or boats needing a robust, vented enclosure for larger Group 27 batteries. Caution: vented design may be less suitable for fully enclosed OEM compartments without ventilation provisions.
- Best for: larger batteries with venting needs
- Better for: extreme temperature environments
- Choose this if: you require a precise fit for Group 27
- Avoid this if: you need a non-vented lid in a sealed compartment
Attwood Standard Non-Vented Battery Box
This non-vented box is sized for Group 24 batteries and includes a protective non-vented lid, ideal for installations in OEM-approved enclosed compartments. It measures 10.6″ x 7″ x 10.125″ inside, offering a compact yet sturdy enclosure. Best for RVs or boats with specific enclosure requirements or where ventilation is provided separately. Caution: non-vented design requires careful placement to avoid gas buildup in confined spaces.
- Best for: enclosed compartments with OEM approval
- Better for: compact Group 24 batteries
- Choose this if: you already have a dedicated ventilation strategy outside the box
- Avoid this if: your installation requires venting inside the box
Peastorm Double Battery Box
Built as a double-battery relocation kit, this steel box supports both RV and marine needs with a waterproof, weather-resistant coating. It features handles on both sides, a lockable upper cover, rubber-ringed holes, and bottom fixing holes with screws included. Best for users seeking a sturdy steel option for higher security and weather protection. Limitation: heavier than polymer boxes, which may affect weight-sensitive installations. Suitable for boats, trailers, and larger RVs.
- Best for: steel construction and security-conscious setups
- Better for: environments where extra durability matters
- Choose this if: you need a lockable cover and front-to-back mounting options
- Avoid this if: weight is a primary concern
Buying Guide
- Ventilation: For vented vs non-vented boxes, consider the battery type and installation location. Vented boxes are preferred for sealed compartments with gas concerns.
- Battery compatibility: Verify group sizes (27, 30, 31, 24, etc.) and the number of batteries the box can safely hold.
- Material and durability: Polymer boxes resist corrosion and are lighter; steel boxes offer maximum durability but add weight.
- Lid and security: Lift-off lids and locking features can improve weather sealing and theft deterrence.
- Mounting hardware: Some boxes include straps, clamps, or screws—factor installation time and security into your choice.
- Interior dimensions: Always compare interior measurements to your battery dimensions to avoid tight fits or gaps.
FAQ
- What is the main difference between vented and non-vented battery boxes? Vented boxes allow hazardous gases to escape, while non-vented boxes are sealed to protect terminals in enclosed spaces.
- How do I know which battery box fits my RV battery group? Check the box interior dimensions and the group size compatibility listed by the manufacturer.
- Are these boxes weather resistant? Most models use corrosion-resistant polymer or coated steel designed for outdoor and marine use; verify IP or coating specs for harsh environments.
- Is installation difficult? Many units include mounting hardware and straps, but some configurations may require additional brackets or tools.
- Can I store two different battery types together? It is generally recommended to store similar group sizes for stability and electrical balance; consult your battery manufacturer guidelines if mixing types.
- Do these boxes protect batteries from impacts? High-quality boxes provide impact resistance, especially models with reinforced walls or steel construction.