Ethos batteries, manufactured by BigBattery, are designed to provide power for a minimum of 10 years with a full repair/replacement warranty lasting the same duration; this is due to their high-quality Lithium Iron Phosphate (LiFePO4) cell technology which allows for a long lifespan and numerous charge cycles Key points about Ethos batteries: Lifespan: 10 years minimum  Warranty: 10-year full repair/replacement

Waterproof lithium battery，how can lithium battery manufacturers make lithium battery pack waterproof? Lithium battery pack must be strict for waterproof. For the power battery applied in new energy vehicles, it is absolutely necessary to meet the IP67 standard. In addition to this standard, lithium battery packs of new energy vehicles have to meet additional requirements.