Select the right size rechargeable ebike battery / motorcycle battery / electric bicycle battery.
Ebike battery / motorcycle battery / electric bicycle battery pack size is based on voltage and amp-hours. The higher the voltage and the higher the amp hours of your battery, the more range your battery will give you. A 48V 10-Ah pack gives you 480 watt hour (48 X 10). This gives you an easy way to determine exactly how much battery you are buying. The wattage of a battery is the only accurate determinant to judge what range your finished electric bike will have.
The powerful of the ebike battery ?
Different batteries have different amperage capacities. Most cheap lithium batteries are not capable of putting out much amperage. If you have a 48 volt bike that performs well when using 25 amps, you are going to want a 48 volt battery that has close to a 20-Amp-hours or more. If you want to eventually hot rod your ebike/ motorcycle / electric bicycle, you may want to invest now in a high amperage battery. This will “future proof” your system by paying a little bit more now for the battery, but then you can program more performance from the controller in the future, if you want…
The other thing to consider is that if you have one 48-volt 10-Ah battery putting out a measly 20 amps, you can add a second version of the same battery, wire them together in parallel, and you will have a 20-Ah pack with a 40-amp capacity, thus effectively doubling your range and doubling your amp output performance.
When you buy your ebike battery / motorcycle battery / electric bicycle battery, make sure you know what its maximum amp output is. Remember, by multiplying amps and voltage you get the actual current capacity of the battery. For example a 48-volt 25 amp pack can put out 1200 watts.
Determine the ebike battery / motorcycle battery / electric bicycle battery voltage ？
Let’s say you got an existing ebike / motorcycle / electric bicycle you are trying to revamp with a new 18650-cell battery pack, or you just bought a China e-bike kit off, and you’re looking for a battery for it…the first question you need to know is…what is the voltage of your controller and motor?
For example, A 36-volt controller and motor in general requires a 36-volt pack. All controllers allow a range of voltages before they pop so it’s highly probable you could go to a 52-volt battery even though your controller is rated for 48 volts. By over voltage your 48V controller and motor with a 52V battery you get a nice performance gain with a low chance of frying your controller. Upping the voltage of your battery slightly is the easiest way to get a performance gain on an existing electric bike set up.
So once you have the voltage selected, now you have to make one of your biggest decisions…how big do you want your battery to be? How much range do you want? And remember the more range, the larger and heavier the battery.
All in all, select the right lithium ion battery for your e-bike, you should know three point at least, which is size, capacity and voltage.
Another, it is important to understand your application products. Different lithium ion battery will be applied for different products. What’s more, if you can be aware of the combination method, usage current, protection board, constant discharge current, instant discharge current and charge current of the lithium ion battery, which will be better for you to select the right rechargeable lithium ebike battery / motorcycle battery / electric bicycle battery.