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Bike Battery Guide and Voltage Applications

Bike Battery Voltage Guide

Bike Battery Guide and Voltage Applications

Batteries drop voltages over time as they supply power to the accessories of the bike. While the battery supplies current to the equipment, its voltage gets reduced to nominal terminal voltage. However, the onboard charging system of your bike keeps the battery charged during the process. While bike batteries are connected in series, a typical single lead-acid cell supplies 2.1 volts. Most of the complaints associated with bike batteries are based on low voltage levels. However, the actual reasons that your bike battery loses the voltage are dependent on a number of factors. When the battery loses voltage, it happens due to the weak cells, state of charge, and the load connected to it.

charging the battery of a motorcycle

Although voltage drop can occur due to many reasons, we’re going to share a couple of reasons that might be useful for you. Ordinary bikes are not equipped with heavy accessories, whereas touring bikes are the most electrically loaded. Touring bikes are equipped with excess lights and many accessories that draw power from the battery. Therefore, before you install any accessory in your bike, make sure to have a high power battery with appropriate capacity in Ah. Having an appropriate battery supplies the right amount of power without any voltage drop unless completely discharged.

Another important aspect of charging your battery is to keep the charging voltages maintain within limits (Primarily for Lead Acid Battery). Charging voltages have a significant impact on the chemistry of the lead-acid cells and ensuring optimum capacity. The minimum charging current for a lead-acid battery with a single cell of 2.1v should be 2.15 volts. Similarly, trickle charging and nominal charging voltages should be between 2.25-2.27 volts for the former and 2.30-2.35 volts for the latter. Therefore, it is important to note that the battery shouldn’t be charged with non-compatible chargers to prevent premature failure.

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