{"product_id":"victron-smart-lithium-100-ah-batterie-lifepo4-12-8v","title":"Victron Smart Lithium 100 Ah battery LiFePO4 12.8V","description":"\u003ch2\u003eSpace- and weight-saving batteries with Victron's Lithium-Iron Phosphate technology\u003c\/h2\u003e\n\n\u003cp\u003e\u003cb\u003eWhy Lithium Iron Phosphate?\u003c\/b\u003e\u003cbr\u003e\nThe Lithium Iron Phosphate (LiFePO4 or LFP) battery is the safest of the regular lithium iron battery types. The nominal voltage of an LFP cell is 3.2V (lead-acid: 2V\/cell). A 12.8V LFP battery therefore consists of 4 cells connected in series, and a 25.6V battery consists of 8 cells connected in series.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eRobust\u003c\/b\u003e\u003cbr\u003e\nA lead-acid battery will fail prematurely due to sulfation in the following cases:\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eIf it is operated for a long time in an insufficiently charged state (i.e., if the battery is rarely or never fully charged).\u003c\/li\u003e\n\t\u003cli\u003eIf it is left in a partially charged or, even worse, completely discharged state (yacht or RV during winter).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAn LFP battery does not need to be fully charged. Its service life even increases slightly if the battery is only partially charged instead of fully. This is a significant advantage of LFP batteries compared to lead-acid batteries.\u003cbr\u003e\nFurther advantages include a wide operating temperature range, excellent cycling, low internal resistance, and high efficiency (see below).\u003cbr\u003e\nThe LFP battery is therefore the best choice for demanding use.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eEfficient\u003c\/b\u003e\u003cbr\u003e\nIn many applications (especially off-grid solar and\/or wind power systems), energy efficiency can be crucial.\u003cbr\u003e\nThe energy efficiency of a charging cycle (discharge from 100% to 0% and recharge to 100%) of an average lead-acid battery is approximately 80%. The energy efficiency of an LFP battery's charging cycle, on the other hand, is 92%.\u003cbr\u003e\nThe charging process of a lead-acid battery becomes particularly inefficient once the 80% state of charge mark has been reached. This leads to energy efficiencies of only 50%.\u003cbr\u003e\nIn solar systems, this value is even lower, as energy reserves for several days are needed there (the battery is operated in a state of charge between 70% and 100%).\u003cbr\u003e\nAn LFP battery, on the other hand, still achieves an energy efficiency of 90%, even when it is in a shallow discharge state.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eSize and Weight\u003c\/b\u003e\u003cbr\u003e\nSpace savings of up to 70% Weight savings of up to 70%\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eExpensive?\u003c\/b\u003e\u003cbr\u003e\nLFP batteries are expensive compared to lead-acid batteries. However, the higher acquisition costs will more than pay off in demanding applications due to the longer service life, high reliability, and excellent energy efficiency.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eBluetooth\u003c\/b\u003e\u003cbr\u003e\nCell voltages, temperature, and alarm status can be monitored via Bluetooth. This is very useful for detecting a (possible) problem such as cell imbalance.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eBattery Management System (BMS)\u003c\/b\u003e\u003cbr\u003e\nThe BMS can be connected to the BTVs, and its main functions include:\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003edisconnecting or switching off the load if the voltage of a battery cell drops below 2.5 V.\u003c\/li\u003e\n\t\u003cli\u003estopping the charging process if the voltage of a battery cell rises above 4.2 V.\u003c\/li\u003e\n\t\u003cli\u003eswitching off the system if the cell temperature exceeds 50 C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eVictron's LFP batteries have integrated cell balancing and cell monitoring functions. Up to ten batteries can be connected in parallel and up to four batteries in series, allowing for a 48V battery bank of up to 3000 Ah. An exemplary wiring diagram can be found in the product images. The cell balancing\/monitoring cables can be daisy-chained and must be connected to a Battery Management System (BMS).\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eTechnical Data:\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Technical Data Smart Batteries Victron\" class=\"img-responsive\" src=\"https:\/\/alt.solar-kontor.de\/mediafiles\/\/Bilder\/technischeDaten\/Victron\/Batterie\/technische_daten_smart_batterien_victron_lithium.JPG\" style=\"width: 70%;\"\u003e\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":55769346343257,"sku":"300-2012","price":619.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9436\/8857\/files\/lithium-128v-100ahjpg-322361.jpg?v=1761403258","url":"https:\/\/b2bshop.wattstunde.de\/en\/products\/victron-smart-lithium-100-ah-batterie-lifepo4-12-8v","provider":"Wattstunde | B2B Shop","version":"1.0","type":"link"}