--- product_id: 605901287 title: "12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year Lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications" brand: "eci power" price: "β‚©74895" currency: KRW in_stock: false url: https://www.desertcart.kr/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000 store_origin: KR region: South Korea --- # Up to 5000+ life cycles 20Ah high-capacity power Built-in advanced BMS protection 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year Lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications **Brand:** eci power **Price:** β‚©74895 **Availability:** ❌ Out of Stock ## Summary > πŸ”‹ Power your freedom with smart, lightweight energy that lasts a decade! ## Quick Answers - **What is this?** 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year Lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications by eci power - **How much does it cost?** β‚©74895 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000) ## Best For - eci power enthusiasts ## Why This Product - Trusted eci power brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Safety Shield:** Integrated BMS guards against overcharge, overheating, and short circuits. - β€’ **Endurance That Outlasts:** Up to 5000 deep cycles means a decade of reliable energy. - β€’ **Lightweight & Versatile:** Weighing just 2.63kg, perfect for RVs, boats, solar setups, and off-grid living. - β€’ **Long-Lasting Powerhouse:** 20Ah capacity fuels your adventures without compromise. - β€’ **Expandable Energy Network:** Easily link up to 4 batteries in series or parallel for custom voltage and capacity. ## Overview The ECI Power 12V 20Ah LiFePO4 battery delivers a robust 20 amp-hour capacity with an impressive lifespan of 2000 to 5000 cycles, backed by a 10-year warranty. Featuring UL1642 Grade-A lithium cells and a built-in Battery Management System, it ensures superior safety and performance for RV, marine, solar, and off-grid applications. Lightweight and expandable, it’s engineered for modern energy needs without breaking the bank. ## Description ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year Lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications ## Features - ECI Power: A brand for everyone with the goal of providing an open avenue for all to know that safe lithium power should not be cost-prohibitive nor outside the scope of your project. - Unmatched Technology: The ECI Power LiFePO4 battery is designed to meet the needs of modern energy applications while exceeding performance comparable to even the most expensive batteries on the market. Also supports expansion up to 4 batteries sequenced in either series at 48V 20Ah, or in parallel at 12V 80Ah. - Proven Quality: The battery utilizes UL1642 listed LiFePO4 Grade-A cells and is backed by our industry-leading engineering and after-sale teams covering North America and beyond since 1987. - Economical: At a phenomenal price point, the battery is rigorously lab-tested and guaranteed to meet a minimum 3500 cycles at 80% DOD, providing high-performance longevity with a maximum of 7000 cycles at 50% DOD. - Complete Protection: The lithium battery’s unique built-in Battery Management System (BMS) protects it from overcharge, deep discharge, overloading, overheating and short circuit, and excessive low self-discharge rate ensuring up to 1 year maintenance-free storage. Built-in low-temp cut off prevents charging under 23 Β°F (-5 Β°C). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0973LL679 | | Amperage | 20 Amps | | Antenna Location | Remote Control Vehicle | | Battery Capacity | 20 Amp Hours | | Battery Cell Type | Lithium Ion | | Battery Weight | 2630 Grams | | Best Sellers Rank | #91,525 in Electronics ( See Top 100 in Electronics ) #2,868 in Household Batteries & Chargers | | Brand | ECI Power | | Customer Reviews | 4.6 4.6 out of 5 stars (6) | | Item Dimensions | 18 x 7.6 x 16.8 centimeters | | Manufacturer | ExpertPower | | Model Name | ECI1220 | | Model Number | ECI1220 | | Number of Batteries | 1 12V batteries required. | | Reusability | Rechargeable | | UPC | 840140942965 | | Unit Count | 1 Count | | Voltage | 12 Volts | ## Product Details - **Battery capacity:** 20 Amp Hours - **Battery cell composition:** Lithium Ion - **Brand:** ECI Power - **Number of batteries:** 1 12V batteries required. - **Recommended uses for product:** Remote Control Vehicle ## Images ![12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year Lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - Image 1](https://m.media-amazon.com/images/I/61-38AmE+uL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will the bms allow for 3 batteries connected in series to get 36v without cutting out?** A: No, the battery is limited to 2 in series 562-630-3002 support@expertpower.us **Q: What is the best way to cover and protect the terminals?** A: There are no terminals in the traditional sense. They are threaded inserts that are lower than the level of the battery top. The only exposed part is the screw heads that fasten your cable connectors to the battery. If you put the battery in some kind of battery box, there should be no issues. **Q: Can this be used as a replacement for the 12 volt battery (for starting and accessories) on a first generation nissan leaf?** A: Yes it can, it only takes 185 watts of power to switch on the main pack and it take over the 12v bus. There are decades of documentation of many people using LiFePO4 12v 20ah batteries to do this on many generations of Leaf. This battery is rated nominal for 256 watts, so it can handle it. The only issue is the wiring adaption, you'll need someone knowledgeable to do it correctly. If you live in an extreme cold area, you might not want to do this though, that's the caution. **Q: How can i tell when my eci power 5ah is charged? the charger i bought doesn't ever get to the fully charged status light. will batt voltage indicate?** A: This is a common issue with a Lithium Foe charger unless it was specifically designed for that battery with an indicator. There it would be best to charge it only when supervised and take reading with a volt meter. Typically they read 14.7 fully charged otherwise one can purchased their designed charger at a much higher expense. ## Frequently Bought Together - ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year Lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - ExpertPower 12.8V 5A Smart Charger for Lithium LiFePO4 Deep Cycle Rechargeable Batteries --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000](https://www.desertcart.kr/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-12*