--- product_id: 708457374 title: "24V 100Ah LiFePO4 Battery Built-in 100A BMS | 25.6V Lithium Battery,Low Temperature Protection,2560W Power Output,15000+ Deep Cycles for RV,Marine,Solar,Off-Grid Systems" brand: "dumfume" price: "¥185026" currency: JPY in_stock: true reviews_count: 13 category: "Dumfume" url: https://www.desertcart.jp/products/708457374-24v-100ah-lifepo4-battery-built-in-100a-bms-25-6v store_origin: JP region: Japan --- # 2.56kWh energy capacity 100A built-in BMS protection Supports up to 2S4P scalable connections 24V 100Ah LiFePO4 Battery Built-in 100A BMS | 25.6V Lithium Battery,Low Temperature Protection,2560W Power Output,15000+ Deep Cycles for RV,Marine,Solar,Off-Grid Systems **Brand:** dumfume **Price:** ¥185026 **Availability:** ✅ In Stock ## Summary > 🔋 Power your freedom with smart, scalable energy! ## Quick Answers - **What is this?** 24V 100Ah LiFePO4 Battery Built-in 100A BMS | 25.6V Lithium Battery,Low Temperature Protection,2560W Power Output,15000+ Deep Cycles for RV,Marine,Solar,Off-Grid Systems by dumfume - **How much does it cost?** ¥185026 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/708457374-24v-100ah-lifepo4-battery-built-in-100a-bms-25-6v) ## Best For - dumfume enthusiasts ## Why This Product - Trusted dumfume brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rock-solid Safety:** Integrated 100A Battery Management System shields against overcharge, over-discharge, and short circuits for worry-free use. - • **Modular Scalability:** Easily expand your energy setup with series and parallel connections up to 2S4P—perfect for solar, RV, and off-grid power. - • **Lightweight Longevity:** At just 41.7 lbs, it’s one-third the weight of lead-acid batteries, boasting 4000+ deep cycles and a 10-year lifespan. - • **Plug & Play Versatility:** Universal fit with marine terminals and stable 25.6V output, ideal for RVs, boats, solar systems, and more. - • **Power-packed Efficiency:** Delivers 2.56kWh—double the energy of standard 12V 100Ah batteries, powering your lifestyle without compromise. ## Overview The Dumfume 24V 100Ah LiFePO4 Battery combines high energy density (2.56kWh) with a robust 100A built-in Battery Management System, ensuring safe, stable power delivery. Lightweight at 41.7 lbs and designed for scalability (up to 2S4P), it’s engineered for long-lasting performance with 4000+ deep cycles and a 10-year lifespan. Ideal for RVs, solar setups, marine, and off-grid applications, this battery offers a reliable, efficient, and versatile energy solution for the modern professional on the move. ## Description desertcart.com: Dumfume 24V 100Ah LiFePO4 Battery Built-in 100A BMS | 25.6V Lithium Battery,Low Temperature Protection,2560W Power Output,15000+ Deep Cycles for RV,Marine,Solar,Off-Grid Systems : Toys & Games Review: Excellent Battery at a good price. Massive power for my RV from two of these 300 AH batteries. - FYI - I am unable to see the negative reviews on this product and getting this on many other products too; the 1-star reviews cannot be seen by customers. Maybe its an desertcart glitch, not sure. However, the seller delivered on time, at a good price, and a good product, no issues there. Please fix the review issue! That is not acceptable. I have installed these batteries and they work very well. Initially, I saw a Deep Discharge msg on my Victron Battery Monitor and got worried, but my solar installer fixed the software issue with a reset. Now they show 100% capacity, it all works extremely well. Why did I pick the Dumfume LiFePO4 Lithium 300 AH battery over others? 'Project Farm' channel on Youtube did an in-depth review of various Lithium battery brands and this one came out high on the list, with a low price tag. He cut them open too, so you could see the build quality inside. Dumfume had the best build quality inside, all correctly assembled, no shortcuts. Along with all the other metrics tested, and the decent price, I was convinced this was a good battery. Only time will tell in the end. But at present, I can attest this is a solid battery, delivered well packed no damage, and timely delivery. Very happy customer. Please fix the reviews issue. I have a Class C RV, older 1997 model, Ford E350 V10 6.8L engine. 22 ft long, 12 Volt 30 Amp System in RV. I have a Victron Multiplus 2 Inverter/Charger, 2 Dumfume 300 AH batteries, 800 watts solar panels (200 W each from HQST Solar), Victron MPPT 100/50 (maxed out at 800 watts solar). This system is giving me more power than I need. I can run a residential 7 cu ft fridge (no freezer) easily without a dent in the power. I plan to upgrade to a 10 cu ft Insignia residential fridge. It is summer in CA, so plenty of sun. I also have an alternator Orion device so it will charge as I drive. These specs in case anyone needs them. Two of these batteries at 58 lbs each and 300 Amp Hours weighs less than a standard AGM 100 Amp Hour battery that weighs 65 lbs. Lithium can discharge 80% before it reaches critical stage, whereas AGM (Lead Acid) can only discharge 50%. The price of Lithium today is actually less than AGM. So no reason to not switch over to Lithium. Know too, that the old Progressive Chargers that are factory installed in these RVs are absolute rubbish and only float batteries, never fully charging them up. So your batteries die. They also cannot handle lithium. You must changeover to a whole Lithium system, it is unbelievable. My cost was $3K for all the components approx, and $4.5K for install labor including a little fan to vent out the heat. Under $8K is a great deal. I plan to travel and live full time in it so it will save me money in the long run. Review: a good no frills lifepo4 battery - I have purchased a total of 4 batteries. 2 from desertcart and 2 from the dumefume web site directly. they were purchased 1 battery a month. first and last purchases were from desertcart. the 2 that came directly from dumfume had a 13.0 and 12.9 volts. they both charged to 100 percent with no problems. the 2 that came from desertcart had 12.2 and 12.4 volts. they would not charge. i hooked another fully charged lifepo4 battery in parallel to the non charging battery. i then hook a 20amp charger to the non charging battery. it then charged fine. i waited 24 hours then recharged each of them. i was surprised that it took another 10-15 minutes of 20amp to top of all 4 batteries. This process was done when each battery had arrived. note that one of the batteries from desertcart came in with a hole in the box. the battery appeared not to be dented or damaged. PRO: 1: this dumefume 150ah lifepo4 battery is priced good. 2: i like the fact that it is not a smart battery. i have no cell phone and did not want or need the blue tooth feature. 3: external seems to appear to be well built does not feel cheap. no clue on interior. 4: they are light weight for the size and amperage of the battery. CON: 1: did not like the fact that i had 50% of the batteries were not able to be charged and needed a "jump" charge from another battery to get it to work. a little concerned on the bms settings because of this. i also wondered if this was caused from used cells or not. 2: no more room in the house for another battery purchase. NOTE: i have purchased these batteries to supply additional power when attached to a power station. they work great in recharging those power stations. these batteries are being used a power storage and will be sitting on the shelf for an emergency. it will be interesting to see how they hold up over time. i would have liked to see a teardown of the 150ah. there are a few online for the other amp hour versions. CONCLUSION: i like this battery. its a new frills, non smart lifepo4 that feels good to hold. dumfume does have good deals both on desertcart and there website from time to time. If i had room in my home and/or needed another battery i would purchase it again. only minor issue is the charging of this battery and long term (calendar time) will "age" well. i am happy with the purchase. ## Features - Higher Energy Density & Stable Performance: DUMFUME 24V 100Ah LiFePO4 battery delivers 2.56kWh of energy, equivalent to two 12V 100Ah batteries. DUMFUME 24V Lithium Battery higher voltage system ensures stable power output, saving time and cost on wiring while providing longer cycle times and improved battery protection. - 100A BMS with Grade-A Cells for Reliable Protection: DUMFUME 24V 100Ah Lithium Battery Equipped with a 100A Battery Management System, DUMFUME 25.6V 100Ah LiFePO4 battery safeguards against overcharge, over-discharge, and short circuits. It provides continuous power up to 2560W, ensuring longevity and safe operation for various applications. - Scalable System for Larger Energy Needs: DUMFUME 24 volt lithium battery Supports series and parallel connections up to 2S4P. It’s ideal for solar energy storage systems, off-grid setups, and home backup power solutions.Battery performance requires temperatures of 5°C or higher. Please verify suitability before purchase. Return shipping for low-temperature charging issues is not covered. - Longer Lifespan & Lightweight Design: DUMFUME 25.6V 100Ah lithium battery Weighing just 48.06 lbs, this LiFePO4 battery is one-third the weight of traditional lead-acid batteries. Its 10-year lifespan and 4000+ deep cycles at 100% DOD make it a reliable and portable energy solution for both outdoor and indoor applications. - Note: Under various temp/humidity measurement methods and instruments, voltage and current May deviate by 1%~5%. Charge/discharge battery once every 6 months to prevent damage from disuse. Dumfume bateria 24v 100ah is intended for use as an energy storage, please do not use this battery as starting batteries. If you have any questions about the lithium-iron battery, please contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DKM3L5ZC | | Automotive Fit Type | Universal Fit | | Battery Capacity | 100 amp_hours | | Battery Cell Composition | Lithium Polymer | | Battery Type | Lithium Polymer | | Best Sellers Rank | #8,815 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #69 in Solar & Wind Power #74 in Automotive Replacement Batteries | | Brand | dumfume | | Brand Name | dumfume | | Compatible with Vehicle Type | RV, Van, Solar, System, Boat, Truck | | Customer Reviews | 4.4 out of 5 stars 734 Reviews | | Item Dimensions D x W x H | 20.91"D x 8.11"W x 8.56"H | | Item Weight | 41.7 pounds | | Manufacturer | dumfume | | Manufacturer Part Number | DFBattery-100A | | Manufacturer Warranty Description | 5 Year Manufacturer | | Model Number | 25.6V 100AH | | Size | (21.06×8.07×8.46)24V100AH | | Terminal | Marine Terminal | | Unit Count | 1 Count | | Vehicle Service Type | RV, Van, Solar, System, Boat, Truck | | Voltage | 25.6 volts | ## Product Details - **Battery Capacity:** 100 amp_hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** dumfume - **Item Weight:** 41.7 pounds - **Product Dimensions:** 20.91"D x 8.11"W x 8.56"H - **Size:** (21.06×8.07×8.46)24V100AH - **Terminal:** Marine Terminal - **Unit Count:** 1 Count - **Vehicle Service Type:** RV, Van, Solar, System, Boat, Truck - **Voltage:** 25.6 volts ## Images ![24V 100Ah LiFePO4 Battery Built-in 100A BMS | 25.6V Lithium Battery,Low Temperature Protection,2560W Power Output,15000+ Deep Cycles for RV,Marine,Solar,Off-Grid Systems - Image 1](https://m.media-amazon.com/images/I/71TqxW3LnUL.jpg) ## Available Options This product comes in different **Set** options. ## Questions & Answers **Q: Any tips for connecting batteries in series or parallel?** A: Yes – fully charge each battery first. Use the same brand, model, capacity, and BMS, and buy them within 3–6 months of each other. For multiple connections, use a bus bar. **Q: Can I use the battery right after delivery?** A: For shipping safety, it comes with ≤40% charge. Fully charge it before first use. **Q: Can I use this battery on a boat?** A: Yes, as a service battery for things like a fridge or coffee maker. Keep it dry and away from water. Not for starting engines or trolling motors. **Q: Can I charge or discharge it in cold weather?** A: Discharge works from -4°F (-20°C) to 140°F (60°C). But never charge below 32°F (0°C) – it damages the cells. The BMS will block charging. In winter, bring it indoors above 41°F (5°C) before charging. **Q: Does the package include a LiFePO4 charger?** A: No. Please use only a dedicated 14.6V LiFePO4 smart charger. Using a regular lead-acid or other lithium charger can damage the battery. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Battery at a good price. Massive power for my RV from two of these 300 AH batteries. *by M***E on July 25, 2026* FYI - I am unable to see the negative reviews on this product and getting this on many other products too; the 1-star reviews cannot be seen by customers. Maybe its an Amazon glitch, not sure. However, the seller delivered on time, at a good price, and a good product, no issues there. Please fix the review issue! That is not acceptable. I have installed these batteries and they work very well. Initially, I saw a Deep Discharge msg on my Victron Battery Monitor and got worried, but my solar installer fixed the software issue with a reset. Now they show 100% capacity, it all works extremely well. Why did I pick the Dumfume LiFePO4 Lithium 300 AH battery over others? 'Project Farm' channel on Youtube did an in-depth review of various Lithium battery brands and this one came out high on the list, with a low price tag. He cut them open too, so you could see the build quality inside. Dumfume had the best build quality inside, all correctly assembled, no shortcuts. Along with all the other metrics tested, and the decent price, I was convinced this was a good battery. Only time will tell in the end. But at present, I can attest this is a solid battery, delivered well packed no damage, and timely delivery. Very happy customer. Please fix the reviews issue. I have a Class C RV, older 1997 model, Ford E350 V10 6.8L engine. 22 ft long, 12 Volt 30 Amp System in RV. I have a Victron Multiplus 2 Inverter/Charger, 2 Dumfume 300 AH batteries, 800 watts solar panels (200 W each from HQST Solar), Victron MPPT 100/50 (maxed out at 800 watts solar). This system is giving me more power than I need. I can run a residential 7 cu ft fridge (no freezer) easily without a dent in the power. I plan to upgrade to a 10 cu ft Insignia residential fridge. It is summer in CA, so plenty of sun. I also have an alternator Orion device so it will charge as I drive. These specs in case anyone needs them. Two of these batteries at 58 lbs each and 300 Amp Hours weighs less than a standard AGM 100 Amp Hour battery that weighs 65 lbs. Lithium can discharge 80% before it reaches critical stage, whereas AGM (Lead Acid) can only discharge 50%. The price of Lithium today is actually less than AGM. So no reason to not switch over to Lithium. Know too, that the old Progressive Chargers that are factory installed in these RVs are absolute rubbish and only float batteries, never fully charging them up. So your batteries die. They also cannot handle lithium. You must changeover to a whole Lithium system, it is unbelievable. My cost was $3K for all the components approx, and $4.5K for install labor including a little fan to vent out the heat. Under $8K is a great deal. I plan to travel and live full time in it so it will save me money in the long run. ### ⭐⭐⭐⭐⭐ a good no frills lifepo4 battery *by T***Y on January 26, 2026* I have purchased a total of 4 batteries. 2 from Amazon and 2 from the dumefume web site directly. they were purchased 1 battery a month. first and last purchases were from Amazon. the 2 that came directly from dumfume had a 13.0 and 12.9 volts. they both charged to 100 percent with no problems. the 2 that came from Amazon had 12.2 and 12.4 volts. they would not charge. i hooked another fully charged lifepo4 battery in parallel to the non charging battery. i then hook a 20amp charger to the non charging battery. it then charged fine. i waited 24 hours then recharged each of them. i was surprised that it took another 10-15 minutes of 20amp to top of all 4 batteries. This process was done when each battery had arrived. note that one of the batteries from Amazon came in with a hole in the box. the battery appeared not to be dented or damaged. PRO: 1: this dumefume 150ah lifepo4 battery is priced good. 2: i like the fact that it is not a smart battery. i have no cell phone and did not want or need the blue tooth feature. 3: external seems to appear to be well built does not feel cheap. no clue on interior. 4: they are light weight for the size and amperage of the battery. CON: 1: did not like the fact that i had 50% of the batteries were not able to be charged and needed a "jump" charge from another battery to get it to work. a little concerned on the bms settings because of this. i also wondered if this was caused from used cells or not. 2: no more room in the house for another battery purchase. NOTE: i have purchased these batteries to supply additional power when attached to a power station. they work great in recharging those power stations. these batteries are being used a power storage and will be sitting on the shelf for an emergency. it will be interesting to see how they hold up over time. i would have liked to see a teardown of the 150ah. there are a few online for the other amp hour versions. CONCLUSION: i like this battery. its a new frills, non smart lifepo4 that feels good to hold. dumfume does have good deals both on Amazon and there website from time to time. If i had room in my home and/or needed another battery i would purchase it again. only minor issue is the charging of this battery and long term (calendar time) will "age" well. i am happy with the purchase. ### ⭐⭐⭐⭐⭐ Reliable Power and Peace of Mind for My Solar Setup *by A***E on May 26, 2026* I wanted to wait a little before leaving my review because I had been traveling and really wanted to test these batteries properly before recommending them. I bought them for my home solar setup with an inverter and solar panels, and honestly, they have exceeded my expectations. The 24V 100Ah capacity is definitely noticeable. They provide very stable power and last a long time for daily use in my system. Connecting them to the inverter was simple, and everything worked smoothly right from the start, which I really appreciated because I didn’t want any complications. While I was away, it gave me peace of mind knowing the system would continue running reliably, and when I came back everything was still working perfectly. So far, they’ve performed extremely well and feel like a great investment for my home. The only thing I would improve is including a more detailed instruction manual for people who are not very experienced with solar installations, but aside from that, I’m very happy with this purchase. I would definitely buy them again. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/708457374-24v-100ah-lifepo4-battery-built-in-100a-bms-25-6v](https://www.desertcart.jp/products/708457374-24v-100ah-lifepo4-battery-built-in-100a-bms-25-6v) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-06*