B - Operations – Transporting – 25 – F
Patent
B - Operations, Transporting
25
F
B25F 5/00 (2006.01) H02H 3/20 (2006.01) H02H 5/04 (2006.01) H02H 7/00 (2006.01) H02J 7/00 (2006.01)
Patent
CA 2709565
A DC power tool having an interiorly provided lithium battery element and a charging switch includes a safety protection module to eliminate the risk of circuitry burn-out and other dangers resulting from connecting the power tool to a power supply with unmatched rated voltage and rated current when charging the power tool via use of an adapter.
Duan Junya
Yang Dezhong
Chervon Limited
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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