12V 20AH(22Ah) LiFePO4 Lithium Battery with 30A BMS and LCD Voltmeter

• Premium A-Grade Cells with Robust 30A BMS: Engineered for reliability, ERYY 12V lithium iron phosphate battery is built with top-tier A-Grade cells for 5000+ cycles (10+ years!) and stable performance from -20°C to 60°C. The advanced 30A BMS provides ultimate protection against overcharge, over-discharge, short circuits, and overheating, while balancing cells for maximum efficiency and lifespan. Reliably powers fish finders, portable outdoor speakers, car vacuum cleaners, and more as a 12V deep cycle marine battery
• Lightweight Lead-Acid Upgrade for RVs and Solar: The ERYY 12V 20Ah lithium battery weighs just 5.5 lbs (1/3 of lead-acid) and measures 7.1"×3"×6.8" (half the size), yet delivers 5,000+ deep cycles (10+ years!). Equipped with BMS protection for reliable, safe and consistent power output. Suitable for camping lights and UPS backup. No maintenance, 2x faster charging, and 100% usable capacity vs. 50% in lead-acid
• Superior 12V LiFePO4 Battery with Enhanced Capacity: Upgrade to ERYY 12V 20Ah LiFePO4 lithium battery with true 22Ah capacity – more power for your off-grid storage systems and marine trolling motors. Our advanced 30A BMS ensures safer operation vs. typical ≤20A systems. The built-in LCD voltage meter gives you real-time power monitoring. Includes 2×12 AWG premium battery cables, plus 5000+ cycles lifespan – ideal for serious boaters and off-grid living
• 4P4S Expandable Power Configuration: Unlock custom power with ERYY 12V lithium battery! Carefully series/parallel connect up to 4P4S (48V/80Ah/4096Wh max) using identical 12V batteries to boost voltage (24V/36V/48V) or extend capacity. Suitable for scaling systems for router, security systems, water pumps, and car refrigerators. For safe expansion: Use batteries with the same capacity (20Ah), voltage (12V), BMS (30A), and brand (ERYY). Before connecting in series or parallel, each individual battery must be fully charged (with a resting voltage 13.4V)
• 12V 20Ah Rechargeable LiFePO4 Battery – 3 Versatile Charging Methods! Power your adventures with ERYY 12V Rechargeable Ｍarine Battery - the ultimate energy solution for off-grid living and mobile power needs. Engineered for versatility, it supports THREE smart charging methods: 1) Standard LiFePO4 charger (≤10A), 2) Solar panels with MPPT controller (LiFePO4 compatible), and 3) Generator pairing with LiFePO4 charger. Ideal for solar energy storage systems, emergency lighting, and kids' ride-on cars. Features safe operation within 32°F-113°F charging temperatures and 14.4V±0.2 voltage. Delivers
• Ideal Gift for RV & Outdoor Enthusiasts: Make holiday shopping easy with the ERYY 12V fish finder LiFePO4 battery. Perfect for dad, husband, or any handyman who enjoys RV trips, fishing, and solar DIY projects. Lightweight (5.5 lbs, 1/3 of lead-acid), 5000+ cycles (10+ years), BMS protection, and 100% usable capacity. A practical upgrade that delivers reliable off-grid power

Specifications

• Size: 12V 20AH Plus
• Voltage: 12.8 volts
• Battery Cell Composition: Lithium Ion
• Item Weight: 5 pounds
• Product Dimensions: 3"D x 7.1"W x 6.8"H
• Number Of Cells: 1
• Terminal: M5
• Battery Capacity: 20 amp_hours
• Automotive Fit Type: Universal Fit
• Item Dimensions D x W x H: 3"D x 7.1"W x 6.8"H
• Battery Type: Lithium Ion
• Item Highlight: Grade A Cells, 5000+ Deep Cycles, Lightweight Rechargeable Lithium Iron Phosphate Battery for Fish Finder, Lights, Solar