H - Electricity – 02 – J
Patent
H - Electricity
02
J
320/2
H02J 7/02 (2006.01)
Patent
CA 1077563
ABSTRACT OF THE DISCLOSURE A battery heating circuit comprising a transformer having a primary winding for connection to an a.c. supply and a secondary winding, and at least two pairs of batteries. The two batteries of each pair are connected in series and the series combinations of the pairs of batteries are connected in parallel between d.c. terminals. The secondary winding is connected between the common terminals of each pair of batteries.
292701
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