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Powertech Lithium 12.8V 18Ah Lithium Deep Cycle Battery 12.8V 18Ah Lithium Deep Cycle Battery SB2212 199.00 In stock

12.8V 18Ah Lithium Deep Cycle Battery


12.8V 18Ah Lithium Deep Cycle Battery

CAT.NO:  SB2212

A LiFePO4 battery that weighs less than half of its Lead Acid counterpart.
• 12.8V 18Ah
• Next Generation Concept
• Advanced Battery Management System
• Several Times the Life Cycle of Equivalent Lead Acid Battery
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Bulk Pricing:
1-9 $199.00
10-19 $178.95
20+ $158.95
In Stock

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. 

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

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.

Battery Packs and Batteries

Battery Chemical Composition
Lithium Ferrous Phosphate (LiFePO4)
Battery Peak Current
Battery usage
Bulk Storage
20 Hour Capacity
Connection Type
Spade Terminals
Amp Hour Rating
Internal Resistance
DC Voltage Rating

DC Voltage
Product Dimensions

Classified as dangerous goods

Dangerous in Road Freight
Dangerous in Air Freight
DG UN Number
DG Pack Group
II - Medium Danger
DG Ship Name
3480 - Lithium Ion Batteries
DG Hazardous Chemical Code
Battery Watt Hour Rating (Required for Lithium Batteries)
Product Availability

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Warranty: 36 Months
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Standard Freight: 2-5 working days for most areas
Express Freight: 1-2 days for most areas
Delivered Today: If ordered before 12pm Super fast delivery (limited areas)
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