Lithium Iron Phosphate (LiFePO4) batteries and charge electronics designed and manufactured in The Netherlands. All Verne technology is developed in house: our battery management system, our App (iOS & Android) and our unique cloud monitoring system. We are a Dutch company, and both component production and assembly of the batteries are done in the Netherlands. LiFePO4 is a new battery chemistry with the following advantages over traditional lead-acid / gel / AGM batteries: 1. Longer life (> 4.000 cycles) 2. Lightweight: up to 7 times less weight for the same capacity 3. Low self-discharge (approx. 10% per year) 4. Quick charge & discharge (1 hour) 5. Low toxicity (no lead) LiFePO4 is also an improvement over lithium-ion, the battery technology used frequently in mobile phones, electric devices and cars. LiFePO4 batteries are totally safe, where lithium-ion cells are unstable and can catch fire. LiFePO4 is quite simply the best technology to choose for you camper, boat or off-grid application. It lasts a long time, is easy to use, light weight, much better for the environment and super safe. We currently produce 100Ah, 200Ah and 300Ah LiFePO4 batteries that are an excellent upgrade for your camper / RV, boat, tiny house or off-grid application. All come with 5 years warranty. Feel free to contact us in case you have questions or are considering an upgrade. We will be happy to advise you, or to implement the upgrade completely for you. Verne - Powering the world