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High Power Polymer Li-Ion Battery: 25.9V 4Ah (6745135-10C, 104Wh, 16A rate) with Fuel gauge

Your Price: $269.89
In Stock

Product ID # 4125
Part Number:

Lead Time: 5 Business Days

Quantity Discounts

5 to 20$261.79
21 to 50$256.39
51 to 100$250.99
101 or more$242.90


*Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
Voltage 25.9 v (working)   29.4 V ( peak)   17.5V ( cut-off)
Capacity 4000 mAh   (103 wh), Energy Density: 136Wh/Kg
  • Charge/ Discharge terminal: Copper Barrel Lug terminal attached via Binding Post
    • Barrel Lug terminal size (LxWxH): 0.6" (14mm) x 0.3" (8.0mm) x 0.04" (1.0mm)
    • Binding Post size (DxL): 0.8" (19mm) x 1.2" (30 mm)
      • Red Binding Post = Positive
      • Black Binding Post = Negative
  • 1x PCM (16A limited)installed in the battery pack to balance charging and protect battery module from
    • Over-charge beyond 29.4V
    • Over-discharge below 19.25V
    • over-drained beyond 16A
    • Must wait min of 30 minutes after battery is fully charged to allow the pcm to perform balance function on all the cells within the pack.
Max. Discharging Rate 16 Amp limited by PCM
Dimensions(LxWxH) 158mm (6.2") x 120mm (4.7") x 60mm (2.0")  (W included Binding Post's length)
Weight 3.12 lbs (1502.52 g)


  • Autonomous submarine to drive a 24V DC motor
  • Replace 24V NiMH battery pack for e-bike
  • Wheel Chair
  • If you connect two of these modules in parallel, you can build a 25.9V 20 Ah Battery pack with a 32 Amp discharge rate with suitable wiring.
  • Please click here to see the Comparison Poly-Li pack vs NiMH / SLA to know more the advantages


  • Please plug the charger to the battery pack with correct polarity.
  • Wrong polarity will damage the charger, and Batteryspace are not responsible for the damage or losses caused by misuse
  • Please note this battery is for R&D use only and NOT for individual customers. We are not responsible for any damages or losses caused by using battery packs.
  • Please never discharge the battery pack beyond its Max. rating
  • Must read before place an order. Please download fill the form . We reserve the right to not sell the battery to any one if we feel they cannot handle Li-Ion battery safely
  • For safety warning please see the link here
  • Please allow us to deliver the battery pack in 2-3 weeks after receipt payment because it need to be tested before shipping
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

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