{"product_id":"qsl12400","title":"QSL12400 12.8V 400Ah LiFePO4 Battery","description":"\u003cp\u003eThe QSL12400 is a 12.8V 400Ah LiFePO4 (lithium iron phosphate) deep-cycle battery that replaces lead-acid batteries in RVs, marine, solar and off-grid systems, delivering 5.12kWh of energy in a maintenance-free, IP67-rated package.\u003c\/p\u003e\u003cp\u003eBuilt with Grade A LiFePO4 cells, it delivers over 6,000 cycles at 80% depth of discharge (roughly 5x lead-acid cycle life), with smart BMS protection and a 5-year warranty. It provides a stable 10-14.6V working voltage with 200A continuous discharge current, BMS options from 50A to 200A, and series\/parallel connection for 24V\/48V systems.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal capacity\u003c\/td\u003e\n\u003ctd\u003e400Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal energy\u003c\/td\u003e\n\u003ctd\u003e5.12kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking voltage\u003c\/td\u003e\n\u003ctd\u003e10-14.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge current\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge current\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;6,000 cycles (80% DOD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003eCharge 0-45℃ \/ discharge -20-60℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e36.4kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e440*388*154mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificates\u003c\/td\u003e\n\u003ctd\u003eUN38.3, MSDS, CE, ROHS, FCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRV and camper house batteries\u003c\/li\u003e\n\u003cli\u003eMarine and trolling motor power\u003c\/li\u003e\n\u003cli\u003eHome solar and off-grid storage\u003c\/li\u003e\n\u003cli\u003eUPS and backup power systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCan it replace my lead-acid battery directly?\u003c\/strong\u003e Yes. It is a drop-in 12V\/24V replacement with BMS protection and no acid maintenance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long does the QSL12400 last?\u003c\/strong\u003e Over 6,000 cycles at 80% DOD, backed by a 5-year warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I connect multiple units in series or parallel?\u003c\/strong\u003e Yes, the QSL series supports series and parallel connection for 24V\/48V systems and higher capacity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it safe for indoor use?\u003c\/strong\u003e Yes. LiFePO4 chemistry, smart BMS over-voltage\/over-current protection and IP67 enclosure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo you support OEM\/ODM and bulk orders?\u003c\/strong\u003e Yes, QLbattery is a 15-year LiFePO4 factory supporting customization and wholesale. Contact us for a quote.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eQLbattery is a 15-year LiFePO4 energy storage factory supporting OEM\/ODM and wholesale. Contact us for pricing, lead time and the latest datasheet.\u003c\/em\u003e\u003c\/p\u003e","brand":"QLbattery","offers":[{"title":"Default Title","offer_id":52706528362816,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/7304\/9408\/files\/QSL12400-LiFePO4LithiumBattery.jpg?v=1782792157","url":"https:\/\/qlbattery.com\/products\/qsl12400","provider":"QLbattery","version":"1.0","type":"link"}