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High Discharge Custom Build Battery (INR21700-40T)
High Discharge Custom Build Battery (INR21700-40T)

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Our Shipping Policy

Delivery Timeline:

In-stock items: Shipped within 2-3 working days, or as specified based on your chosen delivery/pickup option.

Out-of-stock items: Automatically placed on backorder, with restocking completed within 14 working days.



Samsung INR21700-40T 10C batteries offer a great balance of performance and affordability, making them a solid choice for high-discharge applications and Molicel alternative. While Samsung excels in durability and long-term performance, Samsung INR21700-40T 10C is a budget-friendly option for high-performance modified vehicles. At BAOZABOY, we ensure all our batteries undergo strict quality checks during assembly and before shipping to guarantee reliability and safety for our customers.




Samsung INR21700-40T 10C batteries are manufactured by Samsung Private Limited in Singapore and assembled locally.

Each cell has a 4000mAh capacity, rated for about ~20A constant discharge and 30A peak discharge. Below are the discharge ratings based on capacity:

  1. 4Ah – 20A constant, 30A peak
  2. 8Ah – 40A constant, 60A peak
  3. 12Ah – 60A constant, 90A peak
  4. 16Ah – 80A constant, 120A peak
  5. 20Ah – 100A constant, 150A peak
  6. 24Ah – 120A constant, 180A peak
  7. 28Ah – 140A constant, 210A peak
  8. 32Ah – 160A constant, 240A peak


BMS Allocation

  1. 20Ah or 24Ah capacity → paired with 50A / 60A BMS
  2. 28Ah or 32Ah capacity → paired with 80A / 100A BMS

For larger BMS (150A/300A) upgrades, a top-up of $50–$100 applies.


Bluetooth BMS Option

  1. If non-Bluetooth BMS is out of stock and a Bluetooth BMS is provided instead, it will be given free of charge.
  2. By default, the Bluetooth function is unplugged and the software is disabled.
  3. To activate Bluetooth and upgrade to the latest firmware, an additional $50 is required, and the battery must be brought back to us for activation.


Tesla Variant (Cheaper)

Custom Build External battery (Tesla)

Samsung Variant (Best)

Custom Build External battery (Samsung)

Capacity
Voltage
Quantity
Total
SGD 620.00