LANPWR 12V 300Ah Built-in 200A BMS, Max 2560W Power Output, 4000+ Deep Cycles 100% DOD, 10-Year Lifetime, Perfect for Off-Grid, RV, Camper, Solar System, Electric Boat

$1,389.00 $899.00SAVE $490.00

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    Ship from USA warehouse is ships to Continental USA Only(*Except for islands, Puerto Rico, Hawaii, and Alaska.)

      • 100% Safe: LANpwr 12V 300Ah LiFePO4 batteries have exceptional quality since they are manufactured by Grade A LiFePO4 Cells with higher energy density, more stable performance & greater power. LANpwr 12V 300Ah battery built-in 200A BMS to protect it from overcharge, over-discharge, over-current, short circuits, and the high-temperature cut-off for increased performance and longer life.
      • Easy to Move: The weight is 68.34lbs, with no acid in the battery, you're able to safely mount it in any position. All LANpwr lithium battery does 100% quality testing before shipping to ensure you can use them with peace of mind.
      • Longer Life: LANpwr LiFePO4 battery provides >4000 cycles under normal conditions while lead acid battery last 300-500 cycles. Can be 100% discharged while lead acid battery can only 40%-50% discharged.
      • Widely Used: LANpwr 12V 300Ah LiFePO4 battery has 3840Wh energy, supports a maximum continuous load power of 2560W, meets the power supply needs of most of your high-power appliances, very suitable for solar home systems, RVs, campers, boats, outdoor camping, UPS backup, off-grid applications, etc.
      • Support Series or Parallel: LANpwr 12V 300Ah LiFePO4 battery can be connected in parallels or in series for larger capacity and voltage(max 51.2v). Up to get a 51.2V 1200Ah Lithium battery bank and get the max. 61.44kWh energy (4P4S) that could be widely used for solar home backup power, off-grid systems, RV, campers, and solar system.
      • DO NOT Use As A Starter Battery: Please do not use the battery as a starting battery or power battery for electric vehicles or golf carts.

    Ship From: China(40-55 days)

    • China(40-55 days)
    • USA(3-7 days)
    • China(10-20 days)
    $1,389.00 $899.00
    Out of stock

    ·Higher Power: Delivers twice power of lead acid battery,evern high discharge rate, while maintaining high energy capacity.
    ·Wider Temperature Range: -20°C to 60°C
    ·Superior Safety: Lithium Iron Phosphate chemistry eliminates the risk of explosion or combustion due to high impact, overcharging or short circuit situation.
    ·Increased Flexibility: Modular design enables deployment of up to four batteries in series and up to four batteries in parallel.
    Nominal Voltage
    Nominal Capacity
    Internal Resistance
    Cycle Life
    ≥4000 cycles@0.2C 100% DOD
    Months Self Discharge
    Efficiency of Charge
    100% @ 0.2C
    Efficiency of Discharge
    Standard Charge
    Charge Mode
    14.6 ±0.2V
    Charge cut-off voltage
    0.2C charge to 14.6V
    Charge current
    Standard Discharge
    Continuours current
    Max Pulse current
    Discharge cut-off voltage
    Storage Temperature
    -10°C to 45°C(14°F to 113°F)
    Charge Temperature
    0°C to 50°C(32°F to 122°F)
    Discharge Temperature
    -20°C to 65°C(-4°F to 149°F)
    Combination Method
    Plastic Case
    520mm±2mm *270mm±2mm*220mm±2mm



    1. Please charge with a dedicated lithium battery charger;
    2. Do not reverse the positive and negative poles;
    3. There are safety devices in the battery pack. To ensure safety, do not dissect or change the structure of the battery;
    4. It is forbidden to directly connect the positive and negative terminals with metal;
    5. It is strictly forbidden to immerse the battery in water;
    6. It is strictly forbidden to drop, impact, squeeze, puncture the battery;
    7. If the battery pack is not used for 3 months, please put the battery pack fully. When it is not in use, it should be placed in a cool and dry environment.

    Smart Loop

    High energy density, excellent high current charge and discharge performance

    High Capacity

    3840Wh high capacity, upgraded multi-port charging, fast charging, safe and comfortable.

    lP65 Waterproof

    IP65 protection class splash water and dust proof design, safer and more durable.

    Lightweight Appearance

    The housing is made of high quality ABS plastic, reduce operation and maintenance costs, high charging and discharging efficiency.

    LCD Electronic Screen

    The battery status is clear at a glance, and it is more convenient to grasp the information.

    Customer Reviews

    Based on 2 reviews
    James D

    Up date after installation : excellent so far, I will be buying more!

    Great battery

    Works good need a second one will wait for a sale


    A: Sure, you can use this battery for your marine house, besides, LANPWR LiFePO4 battery is widely used for Marine, Car, Golf car, RV, Solar power Systems, Home Energy Storage, Trolling Motor, Boat, motorhome & camper, etc.

    A: LANPWR Batteries are IP65 waterproof and dustproof design, but remember that water and electricity are a bad combination. Prolonged exposure to a high-moisture environment may cause water to penetrate the battery and cause irreversible damage. Like with most electronics, never submerge a LANPWR battery.

    A: We recommend connect batteries with the same capacity from the same brand. Because lithium battery from different brands has their special BMS, we do not suggest you to combine batteries from different brands together as a system.

    A: LANPWR Lithium LiFePO4 batteries are 100% safe & reliable. Our signature chemistry, Lithium Iron Phosphate (LiFePO4), does not contain rare earth elements (like Cobalt) or heavy metals, is non-toxic, including no lead or acid, is non-corrosive, does not off gas, requires no watering or maintenance, can be placed in any orientation, and unlike other lithium batteries will not explode or catch fire. In addition, each LANPWR Lithium battery is protected from over heating, over charging, and short circuiting, by a battery management system (BMS) microchip that also extends the lifespan and is contained in a rugged, waterproof case (Although it has a waterproof design, however, enough water can conduct electricity between the terminals, so don’t submerse the battery). For best performance & reliability we recommend using a LiFePO4 charger.

    A: BMS stands for battery management system. This is the brain of our deep cycle lithium battery. The BMS protects the lithium cells from getting damaged in several scenarios.1. From low or high voltage, low or high temperatures, if there is a short in the system, it will shut off. The BMS shuts off the battery to protect the li-ion cells and the user from unsafe operating conditions. 2. The BMS also regulates the amount of power you can take out of the battery. On our 100 amp-hour battery, the BMS is rated to 100 amps continuous, maximum pulse current 300A (<3s). 3. Our BMS also keeps all the cells in balance. This ensures that the cells are always in balance and maintains the quality and efficiency of the pack.

    A: LiFePO4 batteries should be “topped off” after each use. For greatest longevity, we recommend not fully discharging the battery nor over-charging by leaving it connected to a charger well beyond its full charge cycle. Remember that over the long term, the battery has a limited number of charge and discharge cycles with “one cycle” being either a complete charge and discharge cycle, or a cumulative of both to add up to a full cycle.

    A: Yes, LANPWR 12V 300Ah LiFePO4 Battery supports max 4P4S connection to reach up to 61.44kWh. Various combinations make it perfect for RV, caravan, solar system, marine, home storage, RV trips, backup power and off-grid application, etc.

    A: Yes, connecting multiple batteries together to create a higher voltage is called connecting in series. Our 12V batteries can be connected in series up to 48V maximum. LANPWR 12V 300Ah LiFePO4 Battery support up to Max 4S4P connections. Wiring batteries in series is common practice in the boating and solar storage community.

    A: Due to the different manufacturers of battery parts, we do not recommend connecting the battery in series and parallel with other brands, which will affect battery function and also affect your product warranty.

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    LANPWR 12V 300Ah Built-in 200A BMS, Max 2560W Power Output, 4000+ Deep Cycles 100% DOD, 10-Year Lifetime, Perfect for Off-Grid, RV, Camper, Solar System, Electric Boat

    China(40-55 days)
    China(40-55 days)
    $1,389.00 $899.00