CAT. No. SB2212

12.8V 18Ah Lithium Deep Cycle Battery
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12.8V 18Ah Lithium Deep Cycle Battery

$219
These LiFePO4 batteries are similar in physical size but weigh less than half of their Lead Acid counterparts.

Out of Stock

Description

3 Year Warranty
Hazardous Materials

The next generation of power storage is here! These LiFePO4 batteries weigh less than half of their Lead Acid counterparts. They may look fairly similar to lead acid batteries, but internally they’re a totally different, next generation concept. They’re actually made up of regular 32650 LiFePO4 cells, which are in mass production for many portable devices. An internal battery management system (BMS) ensures all cells are uniformly charged and discharged, as well as providing short circuit, over current, and reverse polarity protection. This provides you with a higher degree of protection than a traditional lead acid battery which is unprotected, and can discharge rapidly under short circuit conditions, causing fire and damage. The internal BMS will also limit discharge and manage cut-off voltage, to further protect the internal cells. 

This 18Ah model can provide continuous current up to 18A. Absolutely perfect for high capacity portable power, and replacement of similar capacity lead acid / AGM battery. 

Features:
- Much lighter than Lead Acid and AGM Batteries
- Robust LiFePO4 Cells
- Excellent life span

Specifications:
Capacity: 18Ah
Service Life: 10yrs+
Cycle Life: 1500+ cycles (> 80% capacity retention)
Cut-Off Voltage: 10V approx.
Charge Type: Constant Current / Constant Voltage
Discharge Current: 18A
Max Continuous Current: ≤30A (≤5 sec)
Internal Cells: 32650 LiFePO4 
Maximum Internal Resistance:  85MΩ
Output Terminals: M5 Bolt Down
Operating Temperature: 0-45°C (60°C max discharging)
Operating Humidity: RH < 85%
Storage Temperature: 0-40°C (15-25°C recommended)
Storage Humidity: RH < 50%

 


Handy Tip Notes on Charging

While the internal battery management system will take care of most charging, in order to maintain optimum operation and capacity, were commend using a charger which is designed for LiFePO4 charging. These chargers are developed to work in the optimum method for recharging, providing longer service life.
If you’re installing them as a house battery, then a DC-DC charger between your main battery system and the house batteries is also recommended, such as the MB3683Dual Input Multi-Stage.
If you’re charging from mains power, we recommend the following chargers (see page 284 for individual details)
• MB3611 4-Stage Multi-Voltage
• MB3613 9-Stage Multi-Voltage
• MB3621 Multi-Stage Charger
If you are installing them off grid we recommend upgrading your charge controller to MP3741.

    Specifications

    Battery Packs and Batteries


    Battery Chemical Composition
    Lithium Ferrous Phosphate (LiFePO4)
    Battery Peak Current
    30A
    20 Hour Capacity
    18Ah
    Battery usage
    Bulk Storage
    Connection Type
    Spade Terminals
    Amp Hour Rating
    18Ah
    Internal Resistance
    220M?

    DC Voltage Rating


    DC Voltage
    12.8V

    Product Dimensions


    Length
    180mm
    Width
    80mm
    Depth
    170mm
    Weight
    2kg

    Classified as dangerous goods


    Dangerous in Road Freight
    DG Class
    9
    Dangerous in Air Freight
    DG UN Number
    3480
    DG Pack Group
    II - Medium Danger
    DG Ship Name
    3480 - Lithium Ion Batteries
    DG Hazardous Chemical Code
    4W
    Battery Watt Hour Rating (Required for Lithium Batteries)
    230.4Wh

    Product Availability


    Availability
    Stocked item

    Packaged Dimensions


    Packaged Length
    18.9cm
    Packaged Width
    19.2cm
    Packaged Weight
    2.87kg
    Packaged Volume
    3.157056l
    Packaged Height
    8.7cm
    Warranty: 36 Months

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