H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 7/00 (2006.01) H01M 10/44 (2006.01) H01M 10/50 (2006.01) H05B 1/02 (2006.01) H05B 3/10 (2006.01)
Patent
CA 2050071
ABSTRACT OF THE DISCLOSURE This battery heater allows every battery independent of position (i.e.automobile load accumulator) to be heated up without ant external power sourco, and to improve the starting power while external temperature is low. The circuit is constructed in such a way that an internal temperature below 0° C in the battery is prevented for a long period of time, and that a regular internal temperature of ca. 15° C in the battery is accomplished in most cases. In case the battery heater is switched on for a longer period of time, and the battery voltage drops below 12 V the battery heater will shift down to a minimal current of ca. 8 mA which is discharging the battery rather insignificantly. The battery heater functions maintenance-free, without any mechanical switches, and is only activated by a starter voltage of ca 14 V, in order not to influence the storage of the filled battery. The durability of lead accumulator is, when using the battery heater, prolonged due to the constant internal temperature, because at the same time the development of lead sulfate (Pb SO4) in too large crystals is prevented or delayed in most cases. In an electronically heated automobile starter battery the same Ah starting power i accomplished as in a battery of a size ca. 25 % bigger. This way the battery size can be reduced, and the enviroment is being charged with less lead acid waste.
Behnisch Jurgen
Marks & Clerk
LandOfFree
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