--- 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: "59896 som" currency: KGS in_stock: true reviews_count: 5 category: "Eci Power" url: https://www.desertcart.kg/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000 store_origin: KG region: Kyrgyzstan --- # 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:** 59896 som **Availability:** βœ… In 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?** 59896 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/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 Review: Lightweight and holds a full charge for quite a long time - I was quite surprised at how light in weight these batteries are compared to the deep cycle batteries I was using in my boat. I'll be buying two more for my smaller 12' V-bottom boat. The smaller boat I have to really watch my weight as I load the boat and when I'm on lakes where I can only use an electric motor, I've had to lug a heavy deep cycle battery, These batteries were so light I carried 2 of them down at a time to my pontoon boat. I use one for the trolling motor and one for the anchor winch. I've been using them all summer so far and it's not died down as a regular deep cell battery would. I even had a problem one night with the gas engine not starting and I had to use the trolling motor to get the 24' pontoon boat back to dock. I would estimate that I've used the trolling battery for about 18 hours so far and it still powers my trolling motor as it did when I had it fully charged. I did read that I could hook the two together in either series or parallel, I suggest reading up online on the advantages and disadvantages of both hookups. Next summer I think I'll buy 2 more and hook 2 in parallel to each of my devices and see if I can make it through the summer. I also thought about getting a solar panel to charge the batteries, that way I wouldn't have to worry about taking them off the boat till it's time to store them for the winter. I'll update you on how they handle solar charging once I do that. The only drawback that I found was that you have to use electrical terminals to make the connection as the terminal posts are too small for conventional battery cables to hook to. Review: Funciona bien cumple lo prometido - Muy bueno ## 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 | | Battery capacity | 20 Amp Hours | | Battery cell composition | Lithium Ion | | Best Sellers Rank | #88,139 in Electronics ( See Top 100 in Electronics ) #2,747 in Household Batteries & Chargers | | Brand | ECI Power | | Customer Reviews | 4.1 out of 5 stars 177 Reviews | | 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. | | Number of batteries | 1 12V batteries required. | | Recommended uses for product | Remote Control Vehicle | | Reusability | Rechargeable | | UPC | 840140942965 | | Unit Count | 1 Count | | 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. - **Unit count:** 1 Count ## 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) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Lightweight and holds a full charge for quite a long time *by I***N on 23 July 2022* I was quite surprised at how light in weight these batteries are compared to the deep cycle batteries I was using in my boat. I'll be buying two more for my smaller 12' V-bottom boat. The smaller boat I have to really watch my weight as I load the boat and when I'm on lakes where I can only use an electric motor, I've had to lug a heavy deep cycle battery, These batteries were so light I carried 2 of them down at a time to my pontoon boat. I use one for the trolling motor and one for the anchor winch. I've been using them all summer so far and it's not died down as a regular deep cell battery would. I even had a problem one night with the gas engine not starting and I had to use the trolling motor to get the 24' pontoon boat back to dock. I would estimate that I've used the trolling battery for about 18 hours so far and it still powers my trolling motor as it did when I had it fully charged. I did read that I could hook the two together in either series or parallel, I suggest reading up online on the advantages and disadvantages of both hookups. Next summer I think I'll buy 2 more and hook 2 in parallel to each of my devices and see if I can make it through the summer. I also thought about getting a solar panel to charge the batteries, that way I wouldn't have to worry about taking them off the boat till it's time to store them for the winter. I'll update you on how they handle solar charging once I do that. The only drawback that I found was that you have to use electrical terminals to make the connection as the terminal posts are too small for conventional battery cables to hook to. ### ⭐⭐⭐⭐⭐ Funciona bien cumple lo prometido *by C***S on 25 June 2025* Muy bueno ### ⭐⭐⭐⭐⭐ Capacity seems to be correct *by I***A on 6 July 2021* I have bought two of these and connected them in parallel. I am running a car fridge on these and so far the fridge has been running for over 60h. I will update the review when the batteries die with overall runtime. Fridge type Alpicool C20 Edit: Fridge temp set at 38F (3.33C). The battery died before I got home, so I don't know the exact time it died. However, it lasts somewhere between 2.5 and 3 days if running only alpicool c20. Ambient temp was around 76-77F. So might last less if hot outside. ## 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.kg/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000](https://www.desertcart.kg/products/605901287-12v-20ah-lithium-lifepo4-deep-cycle-rechargeable-battery-2000-5000) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-08-17*