Swift E-Bikes™ High Power Battery (52V 24Ah 40A BMS)

Comparing a 48V 15Ah battery (500W) to a 52V 24Ah 40A BMS battery, the differences in power, range, and top speed become even more significant. For those who really want to Juice up their Fat Boy™

1. Power Output Comparison

• 52V 24Ah 40A BMS Battery:

  • Max Continuous Power Output = $52V\times 40A=2080W$
  • Peak Power Potential: Likely even higher for short bursts.
  • With 24Ah, this battery provides 52V × 24Ah = 1248Wh (watt-hours) of energy storage.

• 48V 15Ah Battery (500W):

  • Rated Power = $500W$ (often limited by the BMS or controller).
  • Max Potential Power = $48V\times 20A(estimatedBMS)=960W$.
  • Energy storage: $48V\times 15Ah=720Wh$.

Result:
The 52V 24Ah battery offers more than 2× the power output and 73% more energy capacity than the 48V 15Ah battery.

2. Top Speed

• Voltage Impact:

  • A 52V system increases motor RPM compared to a 48V system, typically translating to a ~8.3% increase in top speed.
  • If the motor reaches 25 mph (40 km/h) with the 48V battery, it could reach 27–28 mph (43–45 km/h) with the 52V battery, assuming the motor and controller can handle the voltage for those purchasing for their own current E-Bikes.

• BMS and Current:

  • The 40A BMS allows the 52V system to deliver far more current for high-power performance.
  • The 48V 15Ah system is more likely capped by the battery’s design to deliver ~500–960W, limiting both top speed and torque.

3. Range

• 52V 24Ah: $1248Wh$
• 48V 15Ah: $720Wh$

With the 52V system:

• You can expect roughly 73% more range than with the 48V battery, assuming similar riding conditions and energy usage per mile.

4. Acceleration and Torque

• The 52V 40A system provides significantly better acceleration and hill-climbing ability due to higher power output.
• The 48V 15Ah system will struggle to deliver the same level of performance, especially on inclines or under heavy load, as it's limited to ~960W (and possibly less).

Real-World Implications

5. Considerations

• Compatibility: Ensure your motor and controller support the higher voltage (52V) and higher current (40A)
• Efficiency: The higher voltage of the 52V system reduces current draw, improving efficiency and reducing heat in the system.
• Durability: Lasts over 1000 charges

The 52V 24Ah 40A BMS battery is far superior to the 48V 15Ah battery in every aspect: power, speed, range, and torque. It's an excellent choice if you want high performance, provided your eBike components can handle the increased voltage and current.