Space-Saving & Lightweight Design: As the first-ever 200Ah LiFePO4 battery in the Group 31+ category, it weighs only 44.5 lbs—65% lighter than comparable lead-acid batteries. Its lightweight build reduces your boat’s weight, enabling smoother sailing, faster speeds, and more responsive handling. High Energy Density & Long Lasting Lifespan: Made with Grade A automotive-grade LiFePO4 cells, this battery features an industry-leading 6000 deep cycles at 100% DOD—2000 more cycles than standard lithium batteries. Its outstanding lifespan drastically cuts long-term replacement costs, delivering greater long-term value. Bluetooth 5.0 Smart Monitoring: Pair seamlessly with the Litime APP by scanning the QR code on the battery. Take full control of your power system from your smartphone: monitor real-time State of Charge (SOC), voltage and current, adjust discharge settings, and run system diagnostics with just a few taps. Smart Low-Temperature Protection: Equipped with intelligent low-temperature protection, it automatically stops charging below 32°F and discharging below -4°F. This feature prevents cold damage, safeguards the battery, and extends its service life even in harsh cold conditions. Meets ABYC E-13 Standard: It complies with the ABYC E-13 standard, featuring an extra 200A BMS with triple protection (dust, water, salt spray) plus safeguards against overcharge, overheating, short circuits, and more. Ideal as a 12V lithium marine battery for 12V-36V motors. Expandable Performance: It can be expanded to 4P4S (51.2V 800Ah, 40.96kWh/kW), compatible with trolling motors, marine, RVs, and home backup systems, easily meeting your growing power needs. 12 Years Life & 8 Year Warranty: As a trusted leader in lithium battery technology, Litime focuses on innovation, quality, and customer satisfaction. CE and FCC certified, and compliant with UL 1973 standards, this battery ensures safe, reliable performance even in harsh conditions. Frequently Asked Questions (FAQ) Q1: Is this battery compatible with my trolling motor or RV system? A1: Yes, it’s compatible with most 12V-36V trolling motors (Minn Kota, Motorguide) and fits standard Group 31+ compartments. It works seamlessly with RV systems, solar controllers, and marine setups, easy to upgrade from lead-acid. Q2: How to connect to the Litime APP, and is it iOS/Android compatible? A2: Scan the battery’s QR code, download the APP (App Store/Google Play), and pair via Bluetooth 5.0. Compatible with iOS 11.0+ and Android 8.0+, it provides real-time battery data and controls. Q3: Can it be used in cold climates? How does low-temp protection work? A3: Yes. It stops charging below 32°F (prevents lithium plating) and discharging below -4°F (avoids cell damage), ensuring reliable winter performance for ice fishing, camping, or backup power. Q4: How does it compare to lead-acid batteries in lifespan and cost? A4: It offers 6000 deep cycles (100% DOD)—3-5x longer than lead-acid (1000-2000 cycles). While initial cost is higher, no maintenance and fewer replacements save money long-term. Q5: Can I expand capacity? What about parallel/series connections? A5: Yes, connect multiple identical Litime batteries in 4P4S (max 51.2V 800Ah). Use marine-grade wiring, follow instructions, and pair same-model batteries for safety and performance. Q6: Is it Amazon FBA and U.S. safety compliant? A6: Yes. It meets UN 38.3 for FBA, plus UL 1973, ABYC E-13, CE, and FCC standards—fully compliant with U.S. safety and regulatory requirements. Q7: Charging time and recommended charger? A7: Use a 12V LiFePO4 CC/CV charger. 20A charges in ~10 hours, 40A in ~5 hours. Do not use lead-acid chargers (damages cells/voids warranty); BMS prevents overcharging.