New Design Waterproof 12V Marine Smart Power Battery Box
Waterproof Design: IP66 rating ensures protection against dust and water splashes.
Compact Size: 16.4 x 7.9 x 12.9 inches fits neatly in various vehicles and spaces.
Durable Construction: Impact-resistant ABS housing withstands shocks and environmental impacts.
Convenient Connection: 30A fuse and Circuit Breaker Switch provide safe power management.
Wide Compatibility: Suitable for RV, camper, trailer, and other off-road vehicle batteries.



Er sheng: Your Premier Global Partner in Automotive Modification Electronics
With 22 years of expertise, Dongguan Er sheng Electronic Technology (Er sheng) is a leading manufacturer specializing in automotive modification electronics. Operating from a 10,000㎡ facility with 300+ staff, we offer full in-house production-from PCBA and tooling to injection and assembly.
Our core products, including automotive switches, chargers, and wire harnesses, are engineered for off-road and marine environments with superior waterproof, dustproof, and high-current resistance. We hold 160+ patents and are a certified National High-tech and SRDI Enterprise.
Quality is our priority. We are IATF16949 & ISO9001 certified, with products meeting UL, CE, RoHS, and GRS standards. Trusted by global hypermarkets and e-commerce leaders in North America, Europe, and Australia, we ensure 99%+ on-time delivery and 1-hour response. Partner with Er sheng to drive your business forward with reliable, high-performance solutions.














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