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A major safety issue with Battleborn lithium batteries has come to light, largely due to Will Prowse’s teardown videos and ongoing discussions across RV forums. The core problem centers on the use of a single steel bolt and a plastic spacer to connect the positive terminal to the internal buss bar. If the terminal overheats, the plastic can melt, leading to a loose connection, increased resistance, and potentially dangerous heat buildup. Multiple members referenced similar failures...
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A major safety issue with Battleborn lithium batteries has come to light, largely due to Will Prowse’s teardown videos and ongoing discussions across RV forums. The core problem centers on the use of a single steel bolt and a plastic spacer to connect the positive terminal to the internal buss bar. If the terminal overheats, the plastic can melt, leading to a loose connection, increased resistance, and potentially dangerous heat buildup. Multiple members referenced similar failures, including melted cases and near-explosions, with some noting these issues have been reported since 2019.
While some RVers defend Battleborn, citing proper installation and robust warranty support, the majority express concern over the design flaw, especially given the brand’s premium price and reputation. Comparisons are drawn to lower-cost Chinese batteries, which, according to several members and Will Prowse’s tests, do not share this specific defect. There’s also debate about whether Battleborn’s initial reputation was built on early marketing and influencer partnerships rather than long-term reliability.
The discussion highlights a shift in the RV battery market, with many now favoring prismatic cell designs for their simplicity and cost-effectiveness. Members recommend careful installation practices, monitoring for heat at terminals, and considering alternative brands. The consensus is that Battleborn’s response has not reassured the community, and ongoing independent testing is likely to influence future purchasing decisions.