--- product_id: 595373165 title: "DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack" brand: "dr.prepare" price: "AR$1813349" currency: ARS in_stock: false reviews_count: 8 category: "Dr.Prepare" url: https://www.desertcart.com.ar/products/595373165-dr-prepare-group-31-12v-100ah-lifepo4-deep-cycle-battery store_origin: AR region: Argentina --- # 100A continuous discharge with 10-year lifespan Advanced Coulomb Tech Meter ≤5% error 100Ah LiFePO4 Grade A+ cells DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack **Brand:** dr.prepare **Price:** AR$1813349 **Availability:** ❌ Out of Stock ## Summary > 🔋 Power your adventures with precision and longevity — don’t get left in the dark! ## Quick Answers - **What is this?** DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack by dr.prepare - **How much does it cost?** AR$1813349 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/595373165-dr-prepare-group-31-12v-100ah-lifepo4-deep-cycle-battery) ## Best For - dr.prepare enthusiasts ## Why This Product - Trusted dr.prepare brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Extreme Climate Ready:** Smart low-temp cut-off protects battery health in freezing conditions down to -13℉. - • **Built to Last a Decade:** UL-tested Grade A+ LiFePO4 cells deliver 5,000+ cycles—3x longer than lead-acid batteries. - • **Precision Power Insight:** Real-time digital monitor with exact capacity & voltage data beats outdated battery bars. - • **Scalable Energy Freedom:** Supports series & parallel wiring up to 16 batteries for massive 20.48 kWh home or off-grid power banks. - • **Advanced Safety & Support:** 100A BMS with multi-layer protection plus 10-year customer service ensures worry-free performance. ## Overview The DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery features Grade A+ lithium iron phosphate cells with a 10-year lifespan and 5,000+ deep discharge cycles. It includes an advanced coulomb meter for precise battery monitoring with ≤5% error, a robust 100A battery management system for comprehensive protection, and supports scalable series/parallel connections up to 16 units. Ideal for RVs, marine, solar, and trolling motors, it delivers 2-3x the power and longevity of traditional lead-acid batteries, ensuring reliable, long-term energy storage even in extreme temperatures. ## Description Buy DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack: 12V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: New battery, not old stock! - After a full initial charge, I discharged the battery down to 10.5 V, and it rebounded quickly to 11 V. So far, I’m very happy with the performance. This test was done at a 2-amp discharge rate, and the voltage stayed extremely steady right up until cutoff. A heavier load test is coming next. Before running a higher-current test on the 20 Ah battery, I also tested the 100 Ah battery I purchased—and the results were excellent. I had to be gentle with my tester to pull enough current over a reasonable time span, but I managed to measure 99.12 Ah over approximately 9 hours and 57 minutes, at an estimated 8–10 amp draw. These were the very first charge and discharge tests, completed within days of receiving the batteries. I plan to continue testing and will update this review if anything changes. As of now, $120 for 100 Ah and $46 for 20 Ah feels like a very solid value. Update (2-7-26): After a few months of light, occasional use, both batteries are still performing great. I recently purchased a BT90 Pro battery tester with lithium testing capability. After partially discharging the 100 Ah battery and letting it sit unused for a couple of months, the tester still reported it as being in excellent, full-charge condition. Out of curiosity, I also tested the battery’s 100-amp maximum discharge rating using a Harbor Freight CEN-TECH 100-amp load tester. It successfully delivered 100 amps for 9 seconds without the voltage dropping below 12.6 V. The battery stayed cool throughout the test, and the BMS did not trip. Everything continues to work exactly as expected. I’ll keep testing and updating if anything changes. Review: Great product - Works great haven't had any problems out of this battery. Have been going o 6 months now problems ## Features - [ Coulomb Tech Meter] In 2025, updated with advanced coulomb technology, this meter maintains ≤5% error accuracy. Its digital screen displays the discharging current and voltage in the discharge state, the remaining capacity and voltage in standby mode, and the charging current and voltage in the charging state. Unlike voltage-based meters (which show only battery bars with 30-40% inaccuracy, and only shows battery voltage with level bars.), DR.PREPARE meter provides exact numerical data. - [Grade A+ LiFePO4 Cells & Low Temp Cut-Off Protection] The advanced Grade A+ cells inside are UL tested, ensuring a 10-year lifespan. When the temp reaches 23℉~41℉, this lithium batteries will stop being charged, and when the temp reaches -13℉~5℉, this LiFePO4 battery will stop discharging. Low temperature cut-off protection can keep lithium batteries healthy. - [Series and Parallel Connection] Whether creating a 48V lithium ion battery bank or a 12V 400Ah power system, our Dr.Prepare LiFePO4 batteries are both supported. You can even wire up to 16 batteries in series and parallel to build a powerful home battery bank system with a power of 20.48 kWh. - [Improved Active BMS Protection ] Optimized circuit can handle cell balancing, over-current cutoff, over-charge cutoff, over-discharge cutoff, high and low temperature cutoff, and short circuit protection for increased performance and longer lifetime. Dr.Prepare battery provide every customer with 10-YEAR product support. If you have any question, please contact us directly. Dr.Prepare customer service team will provide professional knowledge and service to solve your problem! - [5,000 Cycles, 10-Year Lifetime] DR. PREPARE LiFePO4 battery has 5,000 cycles at 60% deep discharge and 3,000 cycles at 80% deep discharge, providing about a 10-year lifetime, while only 500 cycles for the sealed lead-acid batteries. The 12V rechargeable LiFePO4 battery provides a maximum of 1,280Wh power output, which is 2 to 3 times more powerful than SLA batteries of the same size. Continuous discharge current can power most electrical devices, such as RV, boats marine, off grid, fish finders, solar power, electric chair wheel, camping, cmaper home alarm system, scooters. - [2-3 Times More Power] Dr.Prepare 12V LiFePO4 batteries provide a maximum of 1,280 Wh power output, which is 2 to 3 times more powerful than typical SLA batteries of the same size. 100A max continuous discharge current powers most electrical devices. Monitor the remaining power capacity via the built-in LED display. - [Warm Tips] It's an energy storage battery, not a car battery, starting or golf cart battery. We suggest using one battery with a 12V 36~55 lbs thrust trolling motor, and 2 batteries are required for a 24V trolling motor. CAUTION: An over-current protection device (circuit breaker or fuse) is required. Per Coast Guard regulations, each ungrounded conductor must be protected by a manual, trip-free breaker or fuse. 60A circuit breaker sold separately in the Dr.Prepare Store. - [About Recharging] Use a 12V (14.6V) 5A/10A/20A/50A charger specifically designed for LiFePO4 batteries or a solar panel with controller to recharge DR.PREPARE 12V 100Ah LiFePO4 Battery. Kindly note that Do not use other brand general-purpose chargers to avoid potential damage. Dr.Prepare's compatible charger is available in our store. Lead acid battery charger CAN'T recharge DR.PREPARE LiFePO4 Battery. Each battery must be fully charged separately by a 12V LiFePO4 charger before in series. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CJCBV3NZ | | Batteries | 2 Lithium Ion batteries required. | | Best Sellers Rank | #75,984 in Health & Household ( See Top 100 in Health & Household ) #132 in 12V Batteries | | Customer Reviews | 4.4 4.4 out of 5 stars (350) | | Date First Available | September 19, 2023 | | Item Weight | 22 pounds | | Item model number | DBT12100LFP-S48 | | Manufacturer | DR.PREPARE | | Product Dimensions | 13.07 x 6.77 x 8.66 inches | ## Product Details - **Battery Capacity:** 100 Amp Hours - **Battery Cell Composition:** Lithium Ion - **Brand:** DR.PREPARE - **Number of Batteries:** 2 Lithium Ion batteries required. - **Recommended Uses For Product:** Scooter ## Images ![DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack - Image 1](https://m.media-amazon.com/images/I/614Vi5aVpNL.jpg) ![DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack - Image 2](https://m.media-amazon.com/images/I/61w5FCI6IgL.jpg) ![DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack - Image 3](https://m.media-amazon.com/images/I/71+R0doXcFL.jpg) ![DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack - Image 4](https://m.media-amazon.com/images/I/71FhvToYfgL.jpg) ![DR.PREPARE Group 31 12V 100Ah LiFePO4 Deep Cycle Battery with Monitor Screen & 100A BMS, Rechargeable Grade A+ Cells Lithium Iron Phosphate Battery for RV, Marine, Boat, Trolling Motor, Solar, 2 Pack - Image 5](https://m.media-amazon.com/images/I/71G0mWguJqL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ New battery, not old stock! *by M***T on November 21, 2025* After a full initial charge, I discharged the battery down to 10.5 V, and it rebounded quickly to 11 V. So far, I’m very happy with the performance. This test was done at a 2-amp discharge rate, and the voltage stayed extremely steady right up until cutoff. A heavier load test is coming next. Before running a higher-current test on the 20 Ah battery, I also tested the 100 Ah battery I purchased—and the results were excellent. I had to be gentle with my tester to pull enough current over a reasonable time span, but I managed to measure 99.12 Ah over approximately 9 hours and 57 minutes, at an estimated 8–10 amp draw. These were the very first charge and discharge tests, completed within days of receiving the batteries. I plan to continue testing and will update this review if anything changes. As of now, $120 for 100 Ah and $46 for 20 Ah feels like a very solid value. Update (2-7-26): After a few months of light, occasional use, both batteries are still performing great. I recently purchased a BT90 Pro battery tester with lithium testing capability. After partially discharging the 100 Ah battery and letting it sit unused for a couple of months, the tester still reported it as being in excellent, full-charge condition. Out of curiosity, I also tested the battery’s 100-amp maximum discharge rating using a Harbor Freight CEN-TECH 100-amp load tester. It successfully delivered 100 amps for 9 seconds without the voltage dropping below 12.6 V. The battery stayed cool throughout the test, and the BMS did not trip. Everything continues to work exactly as expected. I’ll keep testing and updating if anything changes. ### ⭐⭐⭐⭐⭐ Great product *by T***M on January 1, 2026* Works great haven't had any problems out of this battery. Have been going o 6 months now problems ### ⭐⭐⭐⭐⭐ Dr. Prepare great 31 life batteries *by C***S on January 5, 2026* Very good life batteries, very nice to have an charge inducator --- ## 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.com.ar/products/595373165-dr-prepare-group-31-12v-100ah-lifepo4-deep-cycle-battery](https://www.desertcart.com.ar/products/595373165-dr-prepare-group-31-12v-100ah-lifepo4-deep-cycle-battery) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-16*