Description
BAK 13S 48V 65000mAh (65Ah) 13S13P 3C Lithium-Ion Rechargeable Battery Pack
The BAK 13S 48V 65000mAh (65Ah) 13S13P 3C Lithium-Ion Rechargeable Battery Pack is a high-capacity NMC lithium-ion battery pack designed for e-bikes, electric scooters, electric motorcycles, EVs, industrial equipment, and other 48V-class applications.
This battery uses BAK N21700CG-50 21700 cells, with each cell rated at 3.6V nominal voltage, 5Ah typical capacity and up to 3C maximum discharge rate.
Key Features
- BAK 21700 5000mAh cells
- 13S13P configuration
- 65Ah / 65,000mAh capacity
- 48V-class lithium-ion battery
- 169 cells total
- NMC / Li-ion chemistry
- 3C maximum cell discharge rate
- High-capacity rechargeable battery
- Suitable for EV and mobility applications
- Compatible with a 13S Li-ion BMS
- Full-charge voltage: 54.6V
BAK specifies the N21700CG-50 at 3.6V nominal, 5.0Ah typical capacity, 4.2V charging limit and 3C maximum discharge.
Capacity Calculation
5Ah × 13 parallel cells = 65Ah
Total number of cells:
13S × 13P = 169 cells
Approximate nominal energy:
46.8V × 65Ah = 3,042Wh
So the pack provides approximately 3.04kWh of nominal energy.
Voltage Information
- Nominal voltage: 46.8V
- Common market designation: 48V
- Full-charge voltage: 54.6V
- Configuration: 13 series groups
- Each series group: 13 cells in parallel
The 48V designation is commonly used for this battery class, while the calculated nominal voltage using BAK’s 3.6V cell specification is 46.8V.
Applications
- 48V electric bicycles
- Electric scooters
- Electric motorcycles
- Electric carts
- EV conversion projects
- Industrial vehicles
- Robotics
- Portable power systems
- Solar energy storage
- High-capacity backup systems
- Custom EV battery packs
BMS & Charging
A suitable 13S Li-ion BMS should be used with this battery pack for cell-group monitoring and protection.
For charging, use a dedicated 54.6V CC/CV lithium-ion charger designed for 13S NMC/Li-ion battery packs.
Important Safety Note
This is a high-energy lithium-ion battery pack. Proper cell matching, BMS protection, insulation, nickel/busbar connections, wiring, enclosure and suitable charging equipment are important for safe operation. Battery assembly and servicing should be performed by a qualified battery-pack technician.
