{"product_id":"relion-128v-300ah-4sc-lifepo4-lithium-ion-battery-rel-rb300","title":"RELiON RB300 Lifepo4 Lithium Ion Battery (12V \/ 300Ah \/ 4SC)","description":"RELiON RB300 12V 300Ah Lithium Deep Cycle Battery\r\n\r\nThis Group 8D lithium iron phosphate (LiFePO4) battery is ready to replace your heavy lead-acid battery bank in your sailboat, RV or solar energy system. It weighs only 82 lbs for a true 300 Amp Hour lithium battery that provides 100% of its rated capacity. The RB300 gives you the flexibility to replace several small, heavier lead-acid batteries in a single high capacity unit.\r\n\r\nLiFePO4 batteries are lighter, take less space and last longer. While the up-front cost is higher than Gel, AGM or Lead-Acid the overall cost of ownership is lower over time because they require no maintenance and they have up to 10x longer life.\r\n\r\nThe RB300 offers high, reliable performance in any climate or condition for sailboats, RVs, campers and battery-based solar systems.\r\n\r\nAll RELiON Batteries use the safest and most stable components, including a LiFePO4 cathode and a built-in Battery Management System (BMS). The BMS ensures a long lifetime, safe handling - and high-accuracy State of Charge (SOC) calculations.\r\n\r\nApplications: Marine, Recreational Vehicles, Solar \u0026amp; Electric Vehicles\r\n\r\nElectrical Specifications\r\nCapacity @ 25A: 720 min\r\nResistance: ≤30 mΩ @ 50% SOC\r\nEfficiency: 99%\r\nSelf Discharge: \u0026lt;3% per Month\r\nMaximum Modules in Series: 6\r\n\r\nMechanical Specifications\r\nCell Type: Cylindrical\r\nChemistry: LiFePO4\r\n\r\nDischarge Specifications\r\nMaximum Continuous Discharge Current: 100 A\r\nPeak Discharge Current: 200 A (7.5 s ±2.5 s)\r\nBMS Discharge Current Cut-Off: 280 A ±50 A (9 ±4 ms)\r\nRecommended Low Voltage Disconnect: 11 V\r\nBMS Discharge Voltage Cut-Off: 8 V (2.0 ±0.08 vpc) (140 ±60 ms)\r\nReconnect Voltage: 9.2 V (2.3 ±0.1 vpc)\r\nShort Circuit Protection: 200-600 µs\r\n\r\nCharge Specifications\r\nRecommended Charge Current: 15 A - 50 A\r\nMaximum Charge Current: 100 A\r\nCharge Current 32°F to 14°F (0 to -10 °C): ≤0.1 C\r\nCharge Current -4°F to 14°F (-20 to -10 °C): ≤0.05 C\r\nRecommended Charge Voltage: 14.2 V - 14.6 V\r\nBMS Charge Voltage Cut-Off: 15.6 V (3.9 ±0.025 vpc) (1.1 ±0.4 s)\r\nReconnect Voltage: 15.2 V (3.8 ±0.05 vpc)\r\nBalancing Voltage: 14.4 V (3.6 ±0.025 vpc)\r\n\r\nTemperature Specifications\r\nDischarge Temperature: -4 to 140 °F (-20 to 60 °C)\r\nCharge Temperature: -4 to 113 °F (-20 to 45 °C) *Refer to charge currents below 0°C (32°F)\r\nStorage Temperature: 23 to 95 °F (-5 to 35 °C)\r\nBMS High Temperature Cut-Off: 176 °F (80 °C)\r\nReconnect Temperature: 122 °F (50 °C)","brand":"RELiON","offers":[{"title":"Default Title","offer_id":51867162312968,"sku":"REL-RB300","price":2993.21,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/5825\/9208\/files\/6d7b3989-608b-4391-8ef6-10c7d365691f.jpg?v=1751375076","url":"https:\/\/mecleisure.co.uk\/products\/relion-128v-300ah-4sc-lifepo4-lithium-ion-battery-rel-rb300","provider":"MEC","version":"1.0","type":"link"}