24V 10Ah Rechargeable Batteries

How to Ride a Bike without Pedaling

The easiest way to ride a bicycle without pedaling it is to use an electric bicycle and rely on the battery. These bikes rely on a specialized, rechargeable battery pack to provide at least some of the energy you would otherwise have to supply yourself.

What Do Volts and Amp Hours Mean?

The easiest way to understand a rechargeable battery system is by understanding two aspects. One is the capacity, or how much energy the battery can hold; the other is the voltage, which basically reflects how rapidly it can release that energy. Neither figure provides enough information to judge a battery fairly on its own, for that you have to combine the two:

  • Volts:Higher voltage batteries have more output than lower voltage batteries. This means that a 24V battery releases energy more slowly than a 36V battery. This does not affect the range but does generally translate to slower acceleration.
  • Amp Hours:These are the electrical equivalent of gallons. A 10 Ah battery can supply a combination of one ampere for ten hours or ten amperes for one hour on a single charge.
  • Watt Hours:These represent the best way to compare electric bike batteries of different voltages and calculate by multiplying the voltage by the capacity in ampere hours. For example, a 12V battery with 20Ah, has the same 240-Watt hours as a 24-Volt 10Ah battery.

What Kinds of Batteries Do Bikes Use?

Different battery technologies offer different benefits and tradeoffs to the user, and the more you know the better you are able to determine the best rechargeable battery for your needs so that you can spend more time riding and less time watching the charger. Some of the more popular choices include:

  • Lead-Acid:Lead-acid battery technology works on many entry level bikes, but they are not recommended. They are short-lived and heavy with low energy density and less power than other batteries. They also do not handle deep-cycle use very well.
  • NiMH:A close cousin to NiCd, an NiMH battery provides an upgrade over the earlier lead-acid technology, but it has largely given way lithium technology.
  • Lithium:Exemplified by the Li-ion battery, lithium is the rechargeable technology of the 21st century. It has the most power and longest life of any battery technology.

Using an Electric Bike

The key to riding an electric bicycle is managing the charge. The more power you use, the shorter the distance you can go on a single charge. A 24V 10Ah battery can give you enough range to ride most of the day if you use it wisely; if you rely on it all the time, you'll be looking for the fastest charger you can find to top up the battery pack. It may be rechargeable, but that's no reason to spend all your time on the charger.