Dyness 12V 100Ah LiFePO4 Lithium Battery (2 Pack) BCI Group 31 with Low-Temp Protection, A+ Grade Cell Built-in 100A BMS, 12 Volt Lithium Battery Perfect for RV, Solar System, Off-Grid, Home Energy
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
Non-returnable item
Learn more
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Jun 17
Recently Viewed
Style: 12V 100Ah Group 31(2 Pack)
Features
- Meet the Needs of Various ScenariosDyness 12V 100Ah LiFePO4 Battery measures 13.0*6.77*8.43 Inch and only 25.3 lbs. Significantly smaller and lighter than traditional batteries. Connect up to 4 in series and 4 in parallel to build a massive 20.48kWh energy bank. Ideal for: RVs & CampingSolar Systems & Off-Grid LivingHome Energy StorageBoating. Enjoy the same high performance while saving space (nearly 50% smaller) and weight (over 65% lighter) compared to equivalent lead-acid batteries.
- Premium A+ Grade Cells & 4000+ Deep CyclesDyness 12V LiFePO4 Battery engineered with top-tier A-Grade LiFePO4 cells, which delivers exceptional longevity, higher power density, and inherent safety. Enjoy peace of mind with: 110-Year Lifespan: Lasts up to 6X longer than standard lead-acid batteries.2Superior Energy Density: Packs 3-5X more power in the same space vs. traditional batteries.3Rigorous Safety Assurance: Independently tested and certified to global standards including FCC, CE, RoHS, and UN38.3 for reliable operation. Each A+ grade battery cell is tested by a professional engineering team, so you can trace the production parameters of each cell
- Low-Temp Charging ProtectionDon't let winter kill your battery! Dyness 12V lithium Battery with low temperature charging protection feature, automatically disconnects charging when the Dyness 12V 100Ah LiFePO4 Battery's temperature drops below 32F (0C), with charging resuming at 41F (5C). Additionally, it automatically cuts off power at -4F (-20C) to further safeguard the battery. This means: No more cold-weather damage during charging Extended battery lifespan season after season True peace of mind in RVs, cabins, or off-grid setups
- All-in-One Safety Shield-100A BMSDyness 100Ah LiFePO4 battery with smart 100A BMS provides comprehensive protection against overcharging, over-discharging, overcurrent, overheating, and short circuits, along with dust resistance, salt spray resistance and IP65 waterproofing. Engineered for relentless reliability in RVs, marine use, and off-grid living
- Fast & Safe Charging OptimizedMaximize the Dyness 12V LiFePO4 battery's performance, we recommend using a LiFePO4-Specific charger (B0FDKGTMJT) for fastest/safest fully chage. Recommend recharging at 0.2C for optimal battery health. If you have any questions during the charging process, please contact us.
- After-Sales ServiceDyness provide professional technical support and online customer service with fast response within 24 hours. If you have any product-related issues or questions, don't hesitate to contact us directly, the Dyness support team is always here for you
Number of Batteries: 1 12V batteries required.
Brand: Dyness
Battery Cell Composition: Lithium Ion
Battery Capacity: 100 Amp Hours
Recommended Uses For Product: RV
Number of Batteries: 1 12V batteries required.
Brand: Dyness
Model Number: AR1.2
Model Name: AR1.2
Manufacturer: Dyness
Built-In Media: AR1.2
Warranty Description: 5 Year Manufacturer
Battery Capacity: 100 Amp Hours
Voltage: 12.8 Volts
Unit Count: 2.0 Count
Battery Weight: 25.3 Pounds
Item Dimensions: 13 x 6.77 x 8.42 inches
Item Weight: 25.3 Pounds
Antenna Location: RV
Battery Cell Type: Lithium Ion
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 17
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: 12V 100Ah Group 31(2 Pack)
Only had them for a few days. I bought these two,100ah batteries, to set up a 200ah 12v system. I'm running a AC powered fridge off a 3000watt inverter. I gave them a full charge, 14.5v is where I think the charger charged them to. I left the charger go untill it showed a full charge. after hitting 14.5 the charger stayed around that voltage for a couple hours before it stopped charging. It was probably equalizing the cells. After unhooking the charger they settled to 13.8. I hooked them up and left them run my inverter with the fridge on all night. Also ran some lights before I went to bed. In the morning, the voltage was down to 13.3v. I have them hooked up to my solar power and they are charging back up. Only took a couple's of hours to reach 13.6v. I'd say these are good batteries. I only have 520watts of solar with a pwm controller. Waiting on an upgraded mppt controller to be delivered. With a mppt controller combined with these batteries, I should have power for days. Lol. Note, make sure you give them a full charge before using. I have the batteries wired in parallel to get maximum amp hours.
...
show more
Reviewed in the United States on February 2, 2026 by Rick
Style: 12V 100Ah Group 31(2 Pack)
I've been buying the Dyness Lifepo4 batteries, 13 of them, for about a year, building my off grid/solar camper system. I have 10 in a 2x5/24v - 4K inverter set up for air conditioner (8Kbtu inverter), microwave, refrigerator, and induction cooktop with separate power cord. I have 3 in parallel/12v for "house" power, with a 2kw inverter and my 30 amp camper power cord plugged in to it with a 30 to 15 amp adapter. Runs all the normal camper stuff. Have had absolutely no problem with any of the batteries and were more economical than most other brands. BTW, 16x100watt panels (2×8/24v) for the 24v 4K set up and 8x100 watt panels in parallel for the 12v system.
...
show more
Reviewed in the United States on May 7, 2026 by Dano
Style: 12V 100Ah Group 31(2 Pack)
I don’t think you can get a better battery for the price. Great customer service great design and function. Perfect for my solar set up. I bought two highly recommended.
Reviewed in the United States on November 6, 2025 by Kelly McGinnis
Style: 12V 100Ah Group 31(2 Pack)
Easy install, was able to quickly swap out my AGM for these in a parallel connection. They charged up very fast to full once I received them and hold their charge really well. They are so much lighter than my old setup and are a lot more energy dense than my last set of batteries. Overall I think these are great and will probably be expanding to more soon!
...
show more
Reviewed in the United States on May 12, 2026 by Amazon Customer
Style: 12V 100Ah Group 31(2 Pack)
Hooked up right up in parallel with eco worthy 280 amp , no problems, who needs blue tooth if you can do simple math, lol
Reviewed in the United States on May 21, 2026 by patrick lippert
Style: 12V 100Ah Group 31(2 Pack)
Bought 2 Dyness 100ah batteries for electric outage emergencies. One can be solar charging while other is in use. I tested by running my 17cuft. kitchen fridge for 12 hours on a 1500watt PSW inverter. Also charged a few phones, ran a small fan. Started with 13.5 Volts and ended with 13 & never went below 80%. I was very pleased. I’m sure I can get 24 hours. I reached out to Dyness with a question and they went overboard with advice. They asked several questions about my application and offered good advice. Then they reached out to request I let them know how my test went. Never got hot when I charged with 10amp LifePo4 charger, nor during use.
...
show more
Reviewed in the United States on April 9, 2026 by Karl Hildebrand
Style: 12V 100Ah Group 31(2 Pack)
Have these batteries set up in parallel for my shop, using 3000 watt inverter and 4 100 watt solar panels, work my ham radio station and a 1300 watt heater for several hours a day with 3 batteries total
Reviewed in the United States on October 29, 2025 by Thomas C.
Style: 12V 100Ah Group 31(2 Pack)
Super fast shipping packages were in perfect condition batteries are absolutely 💯 new and great shopping experience with this company
Reviewed in the United States on June 6, 2026 Reviewed in the United States on June 6, 2026 by Jamie