48v water bottle battery 36v 20ah ebike battery

The 48V/36v water bottle battery is a popular choice for e-bike conversions and custom builds due to its sleek, compact design. The name comes from its cylindrical shape and mounting style, which allows it to be installed in the same location as a bike's water bottle cage, giving it a discreet, integrated look.

Key Features:

• Design & Form Factor: The most defining feature is its "water bottle" or "kettle" style case. This design is highly aesthetic and low-profile, making it an excellent option for bikes where a large, bulky battery would be undesirable.

• Voltage (48V): This higher voltage is beneficial for several reasons. It allows for greater power and efficiency, which can translate to a higher top speed and better performance on hills compared to a 36V system. It is ideal for motors in the 750W to 1500W range.

• Capacity (Ah): While capacities can vary, common sizes are 10.5Ah, 14.5Ah, and even higher. A higher Ah rating means a longer range. For example, a 48V 10.5Ah battery provides 504Wh of energy ($48V\times 10.5Ah=504Wh$), which can provide a range of 20 to 50 miles depending on a variety of factors.

• Compatibility: It is designed to work with most e-bike frames that have standard water bottle mounting holes. It comes with a mounting cradle that attaches to the frame, and the battery slides onto this cradle and locks with a key.

• Security & Convenience: The key-locked mounting system ensures the battery is secure while riding. It is also designed for quick removal, allowing for easy charging off the bike or storage indoors.

• Safety & Technology: Like all modern lithium-ion batteries, it includes a sophisticated Battery Management System (BMS) to protect against over-charging, over-discharging, over-current, and short circuits. Many high-quality batteries use premium branded cells like Samsung, LG, or Panasonic for superior performance and safety.

• Indicators: Many models feature an LED charge level indicator to show the remaining battery capacity at a glance.