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Litime 12V 165Ah Group 31 LiFePO4 Lithium Battery for RV Marine Boat(2Pack)

  • Based on 540 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Li Time US

Arrives Sep 15 – Sep 19
Order within 9 hours and 36 minutes
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Size: 2 Pack


Set name: 165Ah Bluetooth(Group 31)


Features

  • Shipping Notice: Your order may be divided into multiple packages due to size/volume restrictions, resulting in sequential arrivals rather than a single shipment.
  • Bluetooth 5.0: Auto-connects, monitors real-time, controls discharge. Tracks battery status easy. Keeps your adventures powered smoothno interruptions.
  • Low-Temp Protection: Cuts off if charge <32F/discharge < -4F. Stops cold damage. Battery stays safe, reliable even in extreme cold.
  • Multiple Protection : 20+ BMS safeguards, IP65 waterproof, salt fog-resistant. More durable in harsh spots. Battery lasts longerless worry in tough conditions.
  • Top Grade LiFePO4 Cells: Auto-grade cells, BMS blocks overcharge/overcurrent. Stable for 10 years. Reliable performance long-termno frequent issues.
  • Expandable to 33.79kWh: 4P4S (51.2V 660Ah) for more power. Fits RVs/home backup/trolling motors. Meets growing electricity needs easy.
  • Tips: Charge with lithium-activation or MPPT charger to activate Bluetooth after first receipt or switching off. Not suitable for starting batteries, golf cart batteries, or jacks.
  • Protection Upgrade: This LiTime product is covered by AIG Product Liability Insurance, effective from May 22, 2026.

Description

12V 20A Lithium Charger 12V 2000W Inverter 12V &16V 20A Charger 500A Battery Monitor 12V100Ah Group 31 Battery 12V100Ah Group 27 Battery 12V100Ah Group 24 Battery

Number of Batteries: 1 12V batteries required. (included)


Brand: Litime


Battery Cell Composition: Lithium Ion


Battery Capacity: 165 amp_hours


Recommended Uses For Product: Marine, RV, Trolling Motor, Boat, Home Energy Storage, Solar Power Storage, Backup Power


Number of Batteries: 1 12V batteries required. (included)


Brand: Litime


Model Number: EA-A21121B-0D


Model Name: L12V165-165-BT-4-A100-2PACK


Manufacturer: LiTime


Included Components: 1 * Product Manual, 2 * LiTime 12V 165Ah Battery, 4 * Flat Washer, 4 * Insulation Caps, 4 * M8 - 5/8" (16MM) Terminal Bolts


Warranty Description: 5 Years


Battery Cell Type: Lithium Ion


Battery Capacity: 165 amp_hours


Voltage: 12.8 volts


Reusability: Rechargeable


Amperage: 165 A


Unit Count: 2 Count


Battery Weight: 32.2 pounds


Item Dimensions: 13 x 6.77 x 8.5 inches


Item Weight: 32.2 pounds


Antenna Location: Marine, RV, Trolling Motor, Boat, Home Energy Storage, Solar Power Storage, Backup Power


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 15 – Sep 19

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Great battery
Size: 1 Pack Set name: 100Ah RV & Trolling Motor(Group 31)
I had it for two and half years used it every week sometimes multiple days. Used for a 45lb trolling motor. Used in fishing tournament with 8 hours on the water where I was judge, so I was constantly moving and it lasted the 8 hours plus 4 more the next day. Charged during the break and lasted the entire tournament. Very impressive battery life. Unfortunately the price has doubled since I bought it otherwise I’d buy another one. Performance was amazing. Just sold it with my boat. It’s 1/4 the weight of an acid battery. Plug and play ... show more
Reviewed in the United States on July 17, 2026 by Sean

  • Great value, easy upgrade to lithium in our Brinkley travel trailer
Size: 1 Pack Set name: 165Ah Heating & Bluetooth(Group 31)
Arrived early and perfectly charged (54%) for a Lithium battery. Fit into existing Group 27/31 box on the trailer tongue. Fully charged in about 2 hours on shore power, haven’t tried charging with solar panels yet. Very happy with the product, app and installation was effortless!!
Reviewed in the United States on August 10, 2026 by BMUS

  • Great set of Batteries for My Boat Lift
Size: 1 Pack Set name: 100Ah Bluetooth(Group 27)
Great lightweight battery at a lower price found anywhere else.
Reviewed in the United States on August 10, 2026 by H2jOe

  • Good choice.
Size: 2 Pack Set name: 100Ah Heating & Bluetooth(Group 24)
These batteries are being used to replace the LA batteries in our Travel Trailer. Installed along with a new Converter charger from WFCO. Batteries came at 50% charged. Batteries needed to be discharged before Converter would recognize as lithium. App is very straight forward and showing it will take a little over 8 hours to fully charge starting at 7%. The size fits perfect in the same space and the weight is over 50% lighter then the LA batteries. I'm very satisfied with my choice. ... show more
Reviewed in the United States on July 10, 2026 by Patrick G

  • Good set of lifepo4 batteries
Size: 2 Pack Set name: 100Ah Bluetooth(Group 27)
Had a few issues when I first connected batteries in parallel after a full separate charge on both batteries. Tech support was very helpful and had me reconnect several times to wake it up out of sleep mode. First trip out in motorhome batteries ran levelers and slides well and kept the fridge running cold. Batteries quickly recharged from alternator and Li-bim225. Continued charging once on shore power. ... show more
Reviewed in the United States on July 23, 2026 by Charles Walther

  • Great battery - but be careful of using voltage to determine state of charge.
Size: 1 Pack Set name: 100Ah RV & Trolling Motor(Group 31)
Update 2: So it appears that the first battery that was returned was shipped fully charged and had settled to a resting voltage of 12.8. This is why it would not charge. I believe now the battery would have been fine if I had discharged it some. I was under the impression that these batteries are shipped not charged fully. Also the battery label now match the newer branding when ordering from Amazon. Old review: I ordered this battery and connected it to a known good working MTTP solar controller. The controller was setup to charge Lifepo4 and the settings matched Li Time settings from the user manual. It would connect for a second and then instantly disconnect charging. Connected to a small 1.5amp charger I have and it indicates that the battery is full(see picture). Now waiting to see how much this return is going to cost me. I also reordered a replacement battery of the same make / model. Hoping it wasn’t a mistake. Side note: In the meantime I had ordered a second battery from the Li Time e-bæy store and it arrived and works fine. The e-bæy battery has different markings for negative and positive stamped in the top mold of the battery. It also as branding of LTCP. Wonder if the batteries on Amazon are old stock? Update: Li Time sent a pre paid label to send the battery back. ... show more
Reviewed in the United States on October 26, 2023 by KLEX

  • Holds charge well.
Size: 1 Pack Set name: 100Ah RV & Trolling Motor(Group 31)
I was a little leary about these as they are so much cheaper than the name brand lithium ion battery's that I priced from Interstate, bass pro, etc. However, I have been impressed with how well they hold up and how long the charge lasts. We have yet to have one die or run out of power. Ive purchased 2 for our boat and we use it with a 55 lb minn kota. Motor runs well on full speed with no issues from the battery. Also using it for fish finder and when we are trolling at low speed along the lake shore while fishing. I would buy another one. ... show more
Reviewed in the United States on May 4, 2026 by Dwayne H.

  • Good so far.
Size: 1 Pack Set name: 100Ah Bluetooth(Group 27)
So far the battery is excellent for my RV. Has a good warrenty.
Reviewed in the United States on June 20, 2026 by Steveo

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