CPC B60L 53/14 (2019.02) [H02J 7/0029 (2013.01); H02J 7/0034 (2013.01); H02J 7/0047 (2013.01); H02J 7/342 (2020.01); H02J 1/122 (2020.01); H02J 7/00 (2013.01); H02J 7/0048 (2020.01)] | 15 Claims |
7. A rechargeable battery charging device for charging a deeply discharged battery, the device comprising:
a rechargeable battery having a positive terminal and a negative terminal;
a positive battery cable connected or connectable to the positive terminal of the rechargeable battery;
a negative battery cable connected or connectable to the negative terminal of the rechargeable battery;
a detector for measuring an output voltage of the deeply discharged battery;
a microcontroller connected to one or more components or parts of the rechargeable battery charging device, the microcontroller structured and arranged to control operation of the rechargeable battery charging device;
a user interface connected to the microcontroller, the user interface structured and arranged to display one or more functions or modes of the rechargeable battery charging device; and
the microcontroller structured and arranged to control the charging of the deeply discharged battery, the microcontroller having a force mode for charging the deeply discharged battery even if a battery voltage is near 0 volts;
wherein the force mode is configured to operate for a predetermined period of time; and
wherein after the force mode is terminated due to expiration of the predetermined period of time, the rechargeable battery charging device will measure the deeply discharged battery voltage.
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