Lithium ion battery details
A 48V 15Ah lithium-ion battery pack, often configured as 13S6P (13 cells in series, 6 in parallel), is a rechargeable battery pack with a nominal voltage of 48V and a capacity of 15Ah. It typically uses 18650 type cells and delivers 720Wh of energy. These packs are commonly used in electric bikes, scooters, and other applications requiring a high-energy density battery.
Key Features:
- Voltage: 48V nominal.
- Capacity: 15Ah (15,000 mAh).
- Energy: 720Wh (48V * 15Ah).
- Cell Type: Commonly 18650, though other types like 21700 are also used.
- Configuration: 13S6P (13 cells in series, 6 in parallel), but can vary.
- Applications: Electric bikes, e-scooters, solar applications, robots
1. Basic Cell Configuration
Most lithium-ion cells are 3.7V nominal (like 18650 cells), and the capacity varies (e.g., 2000mAh to 3500mAh).Target: 48V (nominal) and 15Ah (capacity)
Voltage Setup:
48V ÷ 3.7V ≈ 13 cells in series → 13S
Capacity Setup:
To get 15Ah, divide 15Ah by the Ah of the individual cell.
Example using 3.0Ah (3000mAh) cells:
15Ah ÷ 3.0Ah = 5 cells in parallel → 5P
Final Configuration:
13S5P → 13 cells in series, each series made of 5 cells in parallel.