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LiFePO4 and Li-ion Batteries provide the best weight and size to power ratio, but are more expensive than most other batteries.
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K2 25.6V LiFePO4 Battery Pack 9.6Ahr
Item Details
K2 25.6V LiFePO4 Battery Pack 9.6Ahr
Item Name:
K2 25.6V LiFePO4 Battery Pack 9.6Ahr
Item #:
K2 Energy
Your Price:
$341.05/ea. - Qty: 5 - 9
$323.10/ea. - Qty: 10 and above
23 Ready to Ship!


We have been using these batteries in our custom robots for some time now. They are much safer than LiIon batteries, are lighter than lead acid, and offer excellent charge and discharge cycles. The batteries have internal circuit boards that protect the batteries, provide a charging circuit, and equalize the cells. You can use standard 24V battery charger on them and the automatic built in circuit of the battery will shut the charging down when its fully charged. We also carry LiFePO4 chargers that will ensure the battery reaches its peak voltage (which is slightly higher than lead acid).


  • Short Circuit Protection
  • High Voltage Cut Off
  • Low Voltage Cut Off
  • Cell Balancing
  • Compatible with most 24V Lead Acid Chargers


  • Weight: 2.5kg (5lbs 8oz)
  • Dimensions (LxWxH): 115mm x 89.5mm x 165mm (4.53in x 3.52in x 6.57in)

Operating Conditions


  • Continuous Discharge (A): Below 11.1
  • Charge Current (A): Below 5.5
  • Charge Voltage Cutoff (V): 29.2
  • Discharge Voltage Cutoff (V): 20
  • High Operating Temp (°C): 55­°
  • Low Operating Temp (°C): 5­°


  • Continuous Discharge (A): Below 25
  • Pulse Discharge Below 2 Seconds (A): 40
  • Charge Current (A): Below 9.6

Documentation and Support


All Lithium Batteries have shipping restrictions and typically can NOT be shipped via air (which includes overseas, second day, next day, etc.). Please review our Battery Terms for details.

Option for air shipping will still appear at checkout but we are unable to honor it.

  • We are not responsible for any damage caused by misuse.
  • Must read before place an order.
  • We reserve the right to not sell the battery to any one if we feel they cannot handle battery safely
  • For safety warning please see the link here

This is a lightweight LiFePO4 battery pack. It's half the weight of a comparable lead acid battery and will yield 30% more power!
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