Charles D Welch

US Patent:

20210336448, Oct 28, 2021

Filed:

Apr 1, 2021

Appl. No.:

17/301398

Inventors:

- Hermosa Beach CA, US
Charles Welch - Hermosa Beach CA, US

International Classification:

H02J 7/00
H01M 10/42
H01M 10/48

Abstract:

A charging system for charging a battery pack is provided. The charging system comprises a charging unit configured to charge and discharge the battery pack having a plurality of rechargeable cells. The charging system further comprises a balancing unit electrically coupled to the charging unit and configured to balance voltage across each rechargeable cell of the plurality of rechargeable cells, and a display unit electrically coupled to the charging unit and configured to display one or more parameters indicative of a charge and discharge status of the battery pack.

US Patent:

20210005940, Jan 7, 2021

Filed:

Jul 2, 2020

Appl. No.:

16/946745

Inventors:

- Hermosa Beach CA, US
Charles Welch - Hermosa Beach CA, US

International Classification:

H01M 10/44
H02J 7/00
H01M 10/052

Abstract:

An electronic circuit that very rapidly charges an internal lithium-titanate battery that can then be used to power an external low-power electronic device and/or charge the external electronic device's internal battery.