U004 and U004-1 (Model number)
18650 (U004) and 21700 (U004-1) This triangular lithium-ion battery pack presents a serious risk of fire and injury. It is poorly built and components are not welded sufficiently. It does not have a heat sensor to prevent overheating and the battery management system is not sufficient to prevent the battery from entering thermal runaway. Businesses should stop selling this product, and owners should stop using this battery immediately. Businesses and product owners should dispose of the battery safely at the household waste facility at La Collette.
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