warranty

Help, please! I've only had my OSub 80w baby for just under three months and there's something wrong with the battery door. It's like it's not connecting with the batteries properly and showing me a low battery warning half the time when my batteries are freshly charged (bought new batteries...

I'd love to give my wismec rouleaux rx200 some aesthetic upgrades, like a duracoat finish or maybe pink bedliner material on the battery cover and button area :p. But I'm worried about how much aesthetic changes I can make before it voids the warranty. Obviously if you mess with the wiring...