Method and device for charging batteries by linearly increasing the charging voltage
First Claim
1. A method for charging batteries, with a predetermined end-of-charge voltage, wherein the charge state of the battery is determined before the charging process and a charging current or a charging voltage is applied to the battery during the charging process over a predetermined charging time, and wherein the charging current is controlled such that the charging voltage is increased linearly between a start-of-charge voltage according to the state of charge of the battery and an end-of-charge voltage over the predetermined charging time.
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Abstract
A method and to a device for charging batteries, in particular lead-acid batteries, having a predetermined end-of-charge voltage (ULS). In order to charge the battery as efficiently and smoothly as possible, and in order to increase the service life of the battery, according to the invention the charge state of the battery is established before the charging process and a charging current (IL) or a charging voltage (UL) is applied to the battery during the charging process and is regulated in such a manner that the charging voltage (UL) is increased during a predetermined charging time (t′charge) between a charge starting voltage (ULA) and the end-of-charge voltage (ULS).
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23 Claims
- 1. A method for charging batteries, with a predetermined end-of-charge voltage, wherein the charge state of the battery is determined before the charging process and a charging current or a charging voltage is applied to the battery during the charging process over a predetermined charging time, and wherein the charging current is controlled such that the charging voltage is increased linearly between a start-of-charge voltage according to the state of charge of the battery and an end-of-charge voltage over the predetermined charging time.
- 14. A device for charging batteries, with a predetermined end-of-charge voltage, with terminals for connecting to the battery, with an input/output device and a control device, wherein a device for determining the charge state of the battery is provided, furthermore a charging time can be specified at the input/output device, and wherein the control device is designed to control the charging current such that the charging voltage is increased linearly during the predetermined charging time of the battery between a start-of-charge voltage according to the state of charge of the battery and an end-of-charge voltage.
Specification