12V 100Ah Lifepo4 Battery with Bluetooth, Bci Group 24 Size, Built-in 100A Smart BMS, 4500+ Deep Cycle Grade A Lithium Cells for RV Travel,Trolling Motor,Marine,Boat,Solar Panel,Camping
Condition: New
Notify me when this product is back in stock
Buy Now, Pay Later
As low as
$31.67
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward 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
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Unavailable
Recently Viewed
Color: 100Ah BT-Wireless
Size: 1 pack
Features
- 10-year lifespanUnder the correct usage, after our rigorous testing, MARSENERGY 12v 100ah lifepo4 battery can keep 100% Depth of discharge(DOD) after 4500 deep cycles, 80% DOD after 8000 deep cycles, and 60% DOD after 15000 deep cycles. Traditional lead-acid batteries only have 300-500 cycles, and their service life is only 1/10 of that of our deep cycle battery
- Smaller and lighterMarsenergy 12v 100ah lithium battery weighs only 21lb, much lighter than traditional lead-acid battery. It size is 10.16*8.46*6.54 inches, which perfectly meets the BCI Group 24 standard. If you previously had a Group 24 lead-acid battery box, you can directly upgrade to a lithium battery. If you have a larger battery box such as Group 27 or 31, it is still compatible
- Reliable qualityEvery penny of cost is used to provide reliable quality of Marsenergy 12v lithium battery. Completely waterproof, robust and reliable. The cells contain additional low-temp additives, making them more resistant to low temp compared to traditional lithium batteries. (Cell's technical standard allows operation at -40F, but for battery life and safety, the BMS will cut off discharge at -4F or charging at 32F)
- Safety GuaranteeMarsenergy lithium batteries 12v uses A-grade cells, and the BMS board has multiple safety protection functions. Once the BMS detects that the battery is in an abnormal state (short circuit, over-voltage, abnormal temp etc.), it will immediately cut off the power and put the battery into sleep mode to protect the safety of you and your family. (The battery in sleep mode needs to be activated before it can be used again. Please refer to the user manual or contact us)
- Worry-free After-salesMarsenergy provide 5-year of after-sales service. Whether the product is within the after-sales service period or not, you can contact us at any time when you need our service. Click "Ask a question" on our store, or click "Contact Seller" in the "Your Order" option. We will deal with it immediately and provide you with a satisfactory solution
Number of Batteries: 1 Lithium Ion batteries required. (included)
Brand: MARSENERGY
Battery Cell Composition: Lithium-Phosphate
Battery Capacity: 100 Amp Hours
Recommended Uses For Product: BCI Battery BOX Group24/27/31, Marine/Boat/Kayak, Other 12V/24V/36V/48V Devices, RV Travel, Solar Energy System, Trolling Motor See more
Number of Batteries: 1 Lithium Ion batteries required. (included)
Brand: MARSENERGY
Model Number: LFP12100(12.8V100Ah)
Model Name: LFP12100(12.8V100Ah)
Manufacturer: Marsenergy
Built-In Media: 1 x After-Sales Service Card, 1 x User Manual, 2 x Marsenergy 12V 100Ah Lifepo4 Deep Cycle Batteries, 4 x M8 - Diameter 0.315" (8MM) Terminal Bolts
Warranty Description: 5 Year Manufacturer
Battery Cell Type: Lithium-Phosphate
Compatible Phone Models: Other 12V/24V/36V/48V Devices, RV Travel, Trolling Motor
Reusability: Rechargeable
Amperage: 100 Amps
Battery Capacity: 100 Amp Hours
Unit Count: 1.0 Count
Battery Weight: 21 Pounds
Item Dimensions: 10.16 x 6.54 x 8.64 inches
Item Weight: 21 Pounds
Antenna Location: BCI Battery BOX Group24/27/31, Marine/Boat/Kayak, Other 12V/24V/36V/48V Devices, RV Travel, Solar Energy System, Trolling Motor
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
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
Color: 100Ah BT-Wireless
Size: 1 pack
Ive been using the battery almost daily 3-5 days a week for the past month. I charge it every2 trips or so. It is sooo efficient, when i use it it stays on for 3-4 hrs and so far it has outdone itself, super light and holds a strong charge. If i need another in the future this is the one im choosing
Reviewed in the United States on November 26, 2025 by Yanirys Garcia
Color: 100Ah BT-Wireless
Size: 1 pack
Chargers just fine not a big fan of the Chinese app making you sign up to use it. Fits in a standard battery box. Chargers on the slower side about 21 amps but not the end of the world to me. I can't say anything on longevity as I only had it for a month. The app has the ability to disconnect the battery so that's nice. Battery seems to be good quality but only time will tell on its longevity.
...
show more
Reviewed in the United States on January 10, 2026 by Andrew Mospak
The media could not be loaded. We did a home capacity test of our new MarsEnergy 12.8v 100Ah LiFePo4 battery. It took 8 hrs at 10.3 amps use, to draw the battery from 100% capacity down to 20% capacity. 8 hrs x 10.3 amp = 82 Ah . So, total 100% amp hour capacity of the battery is about 103 amp hours. This is a very good test result in real world conditions. The battery weighs 21 lb, and alone it will replace 170 lb of lead acid batteries, while giving the same energy to our camper. Based on the test results, we would recommend Mars energy batteries to anyone looking to switch over from their lead acid batteries to a reputable lithium iron phosphate battery. Note: MarsEnergy has shown us excellent customer support. Their support staff is highly educated and can promptly answer any level of technical question about their batteries and their setup. For us, this company and their products rate 5 stars!
...
show more
Reviewed in the United States on March 10, 2026 by the kayaker
Color: 100Ah Basic
Size: 1 pack
Took 55 hours to charge up
Reviewed in the United States on December 27, 2025 by Thomas j Horstman
My first Lithium RV Batteries working Great so far I’m Impressed how well they hold the charge and bounce back after load is put on them just using the solar to charge them.
Reviewed in the United States on February 24, 2026 by Dennis
Color: 100Ah Basic
Size: 1 pack
It came with 100% charge and weighs a lot less than most deep cycle batteries!
Reviewed in the United States on March 12, 2026 by Kevin A.
Color: 100Ah Basic
Size: 2 pack
Happy with my purchase. I love how light these batteries are! Shaved a bunch of weight off my RV’s tongue load!! Increased my bank capacity 4X, while still keeping my standard battery box, no modifications needed. I had hoped to be able to turn them so I could install 4 in my current battery box, but my measurements were a 1/2 inch off, so that won’t be possible. They arrived fast and well packed. They appear very sturdy. I appreciate that they can be installed in any direction and that the BMS provides protection for high and low temperatures, as I live full-time in my RV in the desert, but also travel to cold climates. I also primarily rely upon solar for power. Will need 2 more to get fully off-grid & power my A/C. I did have an issue with one not reaching the full 100Ah capacity, but was well compensated for the defect and kept the battery. Seller shipped fast. Overall, great buy for two and I’m happy with my purchase! As I continue expanding my system, I will purchase more of these. I do wish the terminals were recessed, but the rugged construction makes up for that. I wish I could give a 4.5, my overall satisfaction warrants greater than 4 stars, since I can’t, I’ll give ‘em a 5. You won’t be disappointed by these! Note: Measure carefully and know that the terminals are raised. BMS doesn’t have any fancy features and batteries will require being fully charged then load balanced, prior to installation. When using more than one, be sure to install using terminal blocks. It is not recommended to use the battery terminals for joining multiple batteries.
...
show more
Reviewed in the United States on May 31, 2025 by AudiTDI-RVguy-OffGridLife
Color: 100Ah Basic
Size: 1 pack
Does the job. Lasts longer, is lighter. Good replacement option. Be ready with a strong battery charger to get them fully charged. I only had a maintenance charger and that took 3 days
Reviewed in the United States on March 13, 2026 by Rob