12V 20AH(22Ah) LiFePO4 Lithium Battery with 30A BMS and LCD Voltmeter
US$98.98
Arrives as soon as ✓ Free shipping — over $200Description
Product Details Size: 12V 20AH Plus Item Weight: 4.7 pounds Voltage: 12.8 volts Included Components: 2PCS 12 AWG Cables with M5 Ring Terminal, Battery with screws, User manual Number of Items...
Delivery & Returns
Ships to the United States
Free shipping on orders over $200 · $6.90 below that
30-day returns. For change-of-mind returns, return shipping charges may apply depending on the item's packaged size and weight. Returns for damaged, defective, or incorrect items are free.
Free shipping over $200
Orders of $200 or more ship free. No code needed.
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Product Details
- Size: 12V 20AH Plus
- Item Weight: 4.7 pounds
- Voltage: 12.8 volts
- Included Components: 2PCS 12 AWG Cables with M5 Ring Terminal, Battery with screws, User manual
- Number of Items: 1
- Unit Count: 1 Count
- Model Number: YD1220
- Compatible with Vehicle Type: Camping Light, Fish Finder, Lawn Mower, Solar energy storage, UPS backup, outdoor speakers, security systems, trolling motor, vacuum cleaners
- 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
- Manufacturer Part Number: YD1220
- Item Highlight: Grade A Cells, 5000+ Deep Cycles, Lightweight Rechargeable Lithium Iron Phosphate Battery for Fish Finder, Lights, Solar
- Number of Packs: 1
- Manufacturer Warranty Description: 1 Year Manufacturer, NOTE: Splash-proof only. Damage from submersion, rain, or water exposure due to misuse is not covered by warranty.
About this item
- 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 stable power with ≤30A charge/discharge current. NOTE: NEVER use lead-acid battery chargers
- 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
Shipping Policy
Weekend Shed ships from the United States.
Most orders leave the warehouse within 1 business day and arrive in 2–7 business days.
- Free shipping on orders of $200 or more, applied automatically
- Otherwise shipping is a flat $6.90
- Your tracking number is emailed as soon as your order ships
- We currently ship to the lower 48 United States
Return policy
30-day returns.
If it's not quite right, you can request a return within 30 days of delivery, and Weekend Shed will email you return instructions. Change-of-mind returns must be unused, unassembled, and in their original packaging. There is no restocking fee. Depending on the item's packaged size and weight and how it needs to be collected, a change-of-mind return may have a return shipping or pickup cost. We only deduct the actual cost: we tell you the exact amount and get your OK before arranging a paid return, and if there is no cost, nothing is deducted. Returns for damaged, defective, or incorrect items are free.
How it works
- Email us at support@weekendshed.com with your order number.
- We send your return instructions within 1 business day, along with any return shipping cost so you can decide.
- Your refund goes back to your original payment method within 10 business days of the carrier scan.
Damaged or defective on arrival? Send a photo and Weekend Shed replaces or refunds immediately, return shipping on us, and in most cases you won't need to send anything back.