{"product_id":"victron-smart-a-lithium-ionen-200-ah-batterie-lifepo4-25-6v","title":"Victron Smart-a lithium-ion 200 Ah battery LiFePO4 25.6V","description":"\u003ch2\u003e Space- and weight-saving batteries with lithium iron phosphate technology from Victron\u003c\/h2\u003e\n\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 four cells connected in series, and a 25.6V battery consists of eight cells connected in series.\u003cbr\u003e\n\u003cbr\u003e\n \u003cb\u003eRobust\u003c\/b\u003e\u003cbr\u003e\n A lead-acid battery will fail prematurely due to sulfation in the following cases:\u003c\/p\u003e\n\n\n\u003cul\u003e\n\n\u003cli\u003e If 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\n\u003cli\u003e If it is left in a partially charged or, even worse, completely discharged state (yacht or motorhome during the winter).\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003cp\u003e An LFP battery doesn't need to be fully charged. Its service life is even slightly increased if the battery is partially charged rather than fully charged. This is a significant advantage of LFP batteries over 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\n The LFP battery is therefore the best choice for demanding use.\u003cbr\u003e\n\u003cbr\u003e\n \u003cb\u003eEfficient\u003c\/b\u003e\u003cbr\u003e\n In many applications (especially off-grid solar and\/or wind power systems), the energy efficiency can be of crucial importance.\u003cbr\u003e\n The energy efficiency of a charging cycle (discharging from 100% to 0% and recharging to 100%) of an average lead-acid battery is approximately 80%. In contrast, the energy efficiency of a charging cycle of an LFP battery is 92%.\u003cbr\u003e\n The charging process of a lead-acid battery becomes particularly inefficient when the 80% state of charge mark is reached. This leads to energy utilization rates of only 50%.\u003cbr\u003e \nFor solar systems, this value is even lower, as energy reserves are required for several days (the battery is in operation at a charge level between 70% and 100%).\u003cbr\u003e\n An 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\n Space savings of up to 70% Weight savings of up to 70%\u003cbr\u003e\n\u003cbr\u003e\n \u003cb\u003eExpensive?\u003c\/b\u003e\u003cbr\u003e\n LFP batteries are expensive compared to lead-acid batteries. However, in demanding applications, the higher initial cost is more than offset by their longer service life, high reliability, and excellent energy efficiency.\u003cbr\u003e\n\u003cbr\u003e\n \u003cb\u003eBluetooth\u003c\/b\u003e\u003cbr\u003e\n Cell voltages, temperature, and alarm status can be monitored via Bluetooth. This is very useful for detecting (potential) problems 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 most important functions include:\u003c\/p\u003e\n\n\n\u003cul\u003e\n\n\u003cli\u003e interrupting or switching off the load when the voltage of a battery cell drops below 2.5 V.\u003c\/li\u003e\n\n\u003cli\u003e stopping the charging process when the voltage of a battery cell rises above 4.2 V.\u003c\/li\u003e\n\n\u003cli\u003e Shut down the system if the cell temperature exceeds 50 C.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003cp\u003e Victron's LFP batteries feature integrated cell balancing and cell monitoring. Up to ten batteries can be connected in parallel and up to four in series, creating a 48 V battery bank with up to 3000 Ah. An example connection can be found in the product images. The cell balancing\/monitoring function cables can be daisy-chained and must be connected to a battery management system (BMS).\u003c\/p\u003e\n\n","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":55769425674585,"sku":"300-2027","price":1736.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9436\/8857\/files\/bat524120610-lifepo4-battery-256v-200ah-smart-front-323257.png?v=1761404068","url":"https:\/\/b2bshop.wattstunde.de\/en\/products\/victron-smart-a-lithium-ionen-200-ah-batterie-lifepo4-25-6v","provider":"Wattstunde | B2B Shop","version":"1.0","type":"link"}