The most important thing about an electric wheelchair is the battery. Do you know the importance of the battery? Let’s take you through what aspects to pay attention to when using batteries.
The service life of electric wheelchair batteries is not only related to the manufacturer’s product quality and wheelchair system configuration, but also has a lot to do with consumers’ use and maintenance. Therefore, while requiring manufacturer quality, it is also important to understand some common sense about battery maintenance.
Battery maintenance is a very simple task. As long as this simple task is done carefully and persistently, the service life of the battery can be greatly extended!
Half of the battery’s service life is in the hands of the user.
About battery rated capacity
Rated capacity: refers to the electrolyte specific gravity of 1.280kg/l at constant temperature (generally T=30℃), with a constant current (In) and a limited time (tn), when the discharge reaches 1.7V/C, the discharged power. Represented by Cn. For lead-acid batteries for traction, the n value is generally 5 or 6. Currently, most countries including Europe and China choose 5, and only a few countries such as the United States choose 6. The rated capacity of single cells C6 > C5 of the same model is not the maximum capacity of the battery.
working hours
Under the same usage conditions of the same vehicle, the working time of a battery with a larger capacity is relatively longer than that of a battery with a small capacity. If the average working current can be estimated (no large current discharge), the daily working time of the battery can be estimated, t≈0.8C5/I (the working time cannot be promised at the time of sale)
Battery life
The service life of the battery is calculated based on the number of times the battery is charged and discharged. After the battery is fully charged, discharge 80% C5, and then fully charge again, it is regarded as a charge-discharge cycle. Currently, the long service life of lead-acid batteries for traction is 1,500 times. When the battery’s capacity drops below 80%C5, it is generally considered that the battery’s service life has ended.
Post time: Aug-12-2024